2024 Chemical formula of galena

Lead (II) sulfide (also spelled sulphide) is an inorganic compound with the formula Pb S. Galena is the principal ore and the most important compound of lead. It is a semiconducting material with niche uses. Formation, basic properties, related materials. Ku national championship ornament

Bihar Board. Class 9; Class 10; Class 11; Class 12; CBSE BoardMinerals have definite crystalline structures and chemical compositions that give them unique sets of physical and chemical properties shared by all samples of that mineral. For example, all specimens of halite have the same ... Galena, an ore of lead, has a specific gravity of roughly 7.5, whereas the specificSphalerite Meanings, Zodiacs, Planets, Elements, Colors, Chakras, and more. Science & Origin of SphaleriteSphalerite, also known as zinc blende and black-jack, is a zinc sulfide mineral that crystallizes in the form of …Galena, also called lead glance, is the natural mineral form of lead (II) sulfide (PbS). It is the most important ore of lead and an important source of silver. [5] Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms.This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: What is the maximum mass of pure lead that could be extracted from 1.0kg of galena, a lead ore with the chemical formula PbS? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct ... Lead (II) sulfide. Molecular Formula PbS. Average mass 239.265 Da. Monoisotopic mass 239.948669 Da. ChemSpider ID 14135.Copper,Brass, and Bronze. Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29.It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.This is galena from St. J oseph lead district, Missouri. It is about 8cm wide. This is galena from St. Joseph lead district, Missouri. It is about 5cm wide. This is galena with marcasite and sphalerite from Joplin, Missouri. It is about 15cm high. This is galena from Scott mine, Hockerville, Oklahoma. It is about 8 cm wide.The most common sulfide crystalling in this manner is galena (PbS), the ore mineral of lead. A type of packing that involves two sulfide ions in each of the octahedral positions in the sodium chloride structure is the pyrite structure. This is a high-symmetry structure characteristic of the iron sulfide, pyrite (FeS 2 O).Mineral. Crystals of serandite, natrolite, analcime, and aegirine from Mont Saint-Hilaire, Quebec, Canada. In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form. [1] [2]Lead Glance VARIETIES Acerila - Term used in a few South American countries describing granular Galena. Argentiferous Galena - Galena with a large silver content. USES Galena is by far the greatest ore of lead. Here's how you can do that. You're dealing with a double replacement reaction in which two soluble ionic compounds in aqueous solution react to form an insoluble ...Question: What is the maximum mass of pure lead that could be extracted from 85.0 g of galena, a lead ore with the chemical formula PbS? 8 Be sure your answer has a unit symbol, if necessary, and is rounded to 3 significant digits. …What is galena's chemical form? Galena is a mixture, not a compound and so it does not have a chemical formula. It is a mixture of sulphides of lead, silver, …Chemical Composition: Calcium Carbonate: Ca(CO3), Mn, Fe, Mg and Sr may partially replace Ca in some samples. Color: Transparent to translucent calcite crystals are colorless, white or light-colored; massive forms of calcite are typically buff, gray, or white. Cleavage: Calcite has perfect cleavage in three directions to produce rhombohedra.General Galena Information : Chemical Formula: PbS : Composition: Molecular Weight = 239.27 gm Lead 86.60 % Pb Sulfur 13.40 % S _____ 100.00 % : Empirical Formula: PbS : Environment: Lead sulfide ore veins, and disseminated in igneous and sedimentary rocks. IMA Status: Valid Species (Pre-IMA) Prehistoric : Locality: Researchers have devised a mathematical formula for calculating just how much you'll procrastinate on that Very Important Thing you've been putting off doing. Researchers have devised a mathematical formula for calculating just how much you...The composition and crystal structure of tourmaline contribute to its unique properties and appearance. Tourmaline is a complex borosilicate mineral, and its composition can vary depending on the specific chemical elements present. The general chemical formula for tourmaline is …Galena is a lead sulfide mineral with a chemical composition of PbS. It is the world's primary ...Galena. gray-black lustrous powder, contains lead, toxic. Galena. FAQ. Questions about ... Chemical Formula: PbS; Lightfastness - thinned: 8 (1 is bad, 8 is best) ...Ores of commercial importance may range from 2 to 20 percent lead or more, even though galena itself contains 86.6 percent lead. This seeming disparity is due to the fact that galena is usually found mixed with other minerals, such as the zinc sulfide zinc blende and the iron sulfides pyrite and marcasite. Consequently, the percentage of ...This mineral has a hardness of 3 and the chemical formula is Cu 5 FeS 4. Chalcopyrite . James St. John/Flickr/CC BY 2.0. ... Galena has a hardness of 2.5 and a very heavy weight. Gold Nugget . PIX1861/Pixabay. Gold has a golden color and streak, with a hardness of 2.5 to 3. Gold is very heavy.Solution for What is the maximum mass of pure lead that could be extracted from 55.0 g of galena, a lead ore with the chemical formula PbS?The most commonly used acid in chemical experiments is Sulphuric acid. It’s an inorganic acid with a lot of strength. H2SO4 is the chemical formula for Sulphuric acid. 2 hydrogen atoms, 1 Sulphur atom, and 4 oxygen atoms make up the molecular formula of Sulphuric acid. Sulphuric acid has many uses in the industry.Galena is the most abundant lead mineral, has been mined for millennia, and remains our major source of that metal. It is a metallic, lead-gray mineral with cubic cleavage and a distinctly high density that makes …You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: What is the maximum mass of pure lead that could be extracted from 4.0 kg of galena, a lead ore with the chemical formula PbS? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of significant digits. .Magnetite is a black, opaque, magnetic mineral that leaves a black streak when rubbed across a hard rough surface. It is one of the most abundant metal oxides, and its crystal structure contains both the ferrous (Fe+2) and ferric (Fe+3) forms of iron ions. A complex pattern of electrons between the two forms of iron is the source of its ...In this video we'll write the correct formula for Lead (II) sulfate, PbSO4.To write the formula for Lead (II) sulfate we’ll use the Periodic Table, a Common ...2.3 Mineral Groups Most minerals are made up of a cation (a positively charged ion) or several cations and an anion (a negatively charged ion (e.g., S 2–)) or an anion complex (e.g., SO 4 2–). For example, in the mineral hematite (Fe 2 O 3), the cation is Fe 3 + (iron) and the anion is O 2– (oxygen). We group minerals into classes on the basis of their …Sphalerite is a zinc-sulfide with varying content of iron, chemical formula (ZnFe)S. When low in iron its crystals have a yellow to brown luster.The galena chemical formula is PbS. The chemical formula represents one atom of lead bonded to one atom of sulfur. The smelting of galena can be represented as the following chemical...This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: What is the maximum mass of pure lead that could be extracted from 1.0kg of galena, a lead ore with the chemical formula PbS? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct ... The mineral galena is composed of lead(II) sulfide and has an average density of 7.46 g/cm 3. How many moles of lead(II) sulfide are in 1.00 ft 3 of galena? ... In a balanced chemical equation, the total mass of the reactants is equal to the total mass of the products formed in the reaction. (o) True (_) False:sphalerite, also called blende, or zinc blende, zinc sulfide (ZnS), the chief ore mineral of zinc. It is found associated with galena in most important lead-zinc deposits. The name sphalerite is derived from a Greek word meaning “treacherous,” an allusion to the ease with which the dark-coloured, opaque varieties are mistaken for galena (a valuable lead ore).Galena has been mined for lead and silver since the time of the Romans. It is the mineral form of lead sulfide. The chemical formula is PbS.Click here👆to get an answer to your question ️ Write the chemical equations involved in the extraction of lead from galena by self - reduction process. Solve Study Textbooks Guides. Join / Login ... Medium. Open in App. Solution. Verified by Toppr. Lead is mainly extracted from sulphide ore called galena. Roasting is done followed by ...Pyrite has the same chemical formula as the rarer mineral Marcasite, but it crystallizes in a different crystal system, thereby classifying it as a separate mineral species. Aggregates of iron sulfide (FeS 2 ) where the crystal structure cannot be determined without complex analyzing material may be wrongly labeled by dealers.2.3 Mineral Groups. Most minerals are made up of a cation (a positively charged ion) or several cations and an anion (a negatively charged ion (e.g., S 2– )) or an anion complex (e.g., SO 42–). For example, in the mineral hematite (Fe 2 O 3 ), the cation is Fe 3+ (iron) and the anion is O 2– (oxygen). We group minerals into classes on the ... Ice (oxygen + hydrogen) Chemical composition: H 2 O Hematite (oxygen + iron) Chemical composition: Fe 2 O 3 Corundum (oxygen + aluminum) Chemical composition: Al 2 O 3 The specimen is from the National Mineral Collection at the National Museum of Natural History, Smithsonian Institute- NMNH R7701-00 https://geogallery. si.edu/ 10026342/corundum ... The most common sulfide crystalling in this manner is galena (PbS), the ore mineral of lead. A type of packing that involves two sulfide ions in each of the octahedral positions in the sodium chloride structure is the pyrite structure. This is a high-symmetry structure characteristic of the iron sulfide, pyrite (FeS 2 O).This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: What is the maximum mass of pure lead that could be extracted from 1.0kg of galena, a lead ore with the chemical formula PbS? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct ...14 Feb 2015 ... Mineral Name: Galena Chemical Formula: PbS (Lead Sulphide) Common Name (s): Lead Glance Density: 7.5 g/cc Crystal System: Isometric Colour: ...Minerals have definite crystalline structures and chemical compositions that give them unique sets of physical and chemical properties shared by all samples of that mineral. For example, all specimens of halite have the same ... Galena, an ore of lead, has a specific gravity of roughly 7.5, whereas the specificBecause of the lead in the chemical formula, it is much denser than other minerals, which makes it seem unnaturally heavy for its size GREAT FOR GEOLOGY ...The projectile fits into a finned casing that improves its accuracy. Calculate the mass of the projectile, assuming it is a cylinder of uranium (density = 19.05 g/cm3) that is 105 mm in diameter and 30 cm in height. The volume of a cylinder is given by the equation V = r2h. Gold leaf, which is used for many decorative purposes, is made by ...Roasting of galena (PbS): The concentrated ore is roasted at a moderate temperature in a reverberatory furnace and in a limited supply of air. The balanced chemical equations are as given below. 2 P b S + 3 O 2 → 2 P b O + 2 S O 2 ↑ P b S + 2 O 2 → P b S O 4 .Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver. Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms.Galena is an ore of lead (Pb). Chemically it is lead sulphide ( PbS ) . To obtain lead (Pb) from it, galena ( PbS ) is first converted into lead oxide ( PbO ) by reacting it with oxygen followed by reduction of lead oxide ( PbO ) by carbon (C).Question: Part A Referring to the table given below, write a balanced equation for the dissolving of galena in hydrochloric acid. The products are hydrogen sulfide gas and load (II) chloride. Table Some Nonsilicate Minerals of Economic Importance Mineral Type Name Chemical Formula Source and/or Use Hematite FeO3 Ore of iron; pigment Oxide ...What is the maximum mass of pure lead that could be extracted from 7.5 kg of galena lead ore with the chemical formula PbS? Be sure your answer has the unit symbol, if necessary, and rounded to the correct number of significant digits.Galena . Galena, (PbS) commonly referred to as "lead glance", is a chief ore of lead, and also an important source of silver. The mineral appears as glistening silver cubes whose sulfide content renders the mineral highly brittle and chemically reactive. ... Arsenopyrite, with a chemical formula FeAsS, is an opaque, steel grey- to white-colored ...Galena has metallic to lead-gray, cube-shaped crystals that break into cubic, right-angled fragments. It is an ore—a mineral of economic value—that was once mined in southeastern Kansas for its lead content. The Tri-State mining district, which includes the far southeastern corner of the state, was formerly one of the most important lead ...In both lead and zinc circuits, pyrite is the main sulphide gangue mineral. It is critical to decrease the presence of iron (Fe) and Zn in the lead concentrate during the flotation of galena.A piece galena has a volume of 4 cm^3. If the density of galena is 8.0 g cm^{-3}, what is the mass (kg) of that piece of galena? A certain sample of the mineral galena (lead sulfide) weighs 12.4 g and has a volume of 1.64 cm^3. What is the density of galena? Chalcopyrite, the principal ore of copper (Cu), contains 34.63% Cu by mass.Sphalerite (sometimes spelled sphaelerite) is a sulfide mineral with the chemical formula ( Zn, Fe) S. [5] It is the most important ore of zinc. Sphalerite is found in a variety of deposit types, but it is primarily in sedimentary exhalative, Mississippi-Valley type, and volcanogenic massive sulfide deposits.Reactants are converted to products, and the process is symbolized by a chemical equation. For example, iron (Fe) and sulfur (S) combine to form iron sulfide (FeS). Fe(s) + S(s) → FeS(s) The plus sign indicates that iron reacts with sulfur. The arrow signifies that the reaction “forms” or “yields” iron sulfide, the product.Bihar Board. Class 9; Class 10; Class 11; Class 12; CBSE BoardExpert Answer. Galena is a major lead ore mineral and has the chemical formula Pbs. What is the percentage of lead in galena? Use the chemical formula to determine the percent composition Write the formula for galena: Pbs Determine the formula weight of galena, Atoms Atomic Weight Total 1 of Pb U 1 x u 1 ofs u 1 x u Formula weight.Galena, also called lead glance, is the natural mineral form of lead sulfide . It is the most important ore of lead and an important source of silver. Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms. It is often associated with the minerals sphalerite, calcite and fluorite.Dolomite is a common rock-forming mineral. It is a calcium magnesium carbonate with a chemical composition of CaMg (CO 3) 2. It is the primary component of the sedimentary rock known as dolostone and the metamorphic rock known as dolomitic marble. …. Dolomite is also a common mineral in hydrothermal veins.Find step-by-step Chemistry solutions and your answer to the following textbook question: Write chemical formulas for galena. ... Write chemical formulas for calcite. chemistry. …A common rock-forming mineral found in felsic igneous rocks, pegmatites and metamorphic rocks, muscovite is the lightest-colored member of the mica mineral group. Micas are a group of sheet silicate minerals distinguished by their perfect single cleavage. This cleavage allows mica minerals to be easily split into thin parallel sheets.Pyrite and Galena are both naturally occurring minerals, but they differ in their chemical compositions. Pyrite is iron sulfide, represented by the chemical formula FeS2. In contrast, Galena is lead sulfide with the chemical formula PbS. Fiza Rafique. Sep 29, 2023.Lead is a chemical element with the symbol Pb (from the Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. ... Galena is a principal ore of lead which often bears ...Question: What is the maximum mass of pure lead that could be extracted from 170. g of galena, a lead ore with the chemical formula PbS? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of significant digits. x 6 ? Show transcribed image text.minerals classified. grouped by chemistry, specifically the anions within the chemical formula. F. T/F -- Diamond and graphite are both poly-morphs of pure silicon. chloride differ chlorine. Chloride is chlorine's anion. ore minerals. Minerals utilized by humans as a source of metal. 2 type polarity bonds. Galena is a lead sulfide mineral with a chemical composition of PbS. It is the world's primary ...Lead (II) sulfide. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ?) Lead (II) sulfide (also spelled sulphide) is an inorganic compound with the formula Pb S. Galena is the principal ore and the most important compound of lead. Expert Answer. Galena is a major lead ore mineral and has the chemical formula Pbs. What is the percentage of lead in galena? Use the chemical formula to determine the percent composition Write the formula for galena: Pbs Determine the formula weight of galena, Atoms Atomic Weight Total 1 of Pb U 1 x u 1 ofs u 1 x u Formula weight.minerals classified. grouped by chemistry, specifically the anions within the chemical formula. F. T/F -- Diamond and graphite are both poly-morphs of pure silicon. chloride differ chlorine. Chloride is chlorine's anion. ore minerals. Minerals utilized by humans as a source of metal. 2 type polarity bonds.Galena is the natural mineral form of lead sulfide. It is one of the most abundant and widely distributed sulfide minerals. It is the most important lead ore mineral. It is also an important source of silver, which is often found in the mineral. It was once used as the semiconductor (or "crystal") in crystal radio sets. What is the maximum mass of pure lead that could be extracted from 3.5 kg of galena, a lead ore with the chemical formula PbS? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of significant digits. 0 X …Ores of commercial importance may range from 2 to 20 percent lead or more, even though galena itself contains 86.6 percent lead. This seeming disparity is due to the fact that galena is usually found mixed with other minerals, such as the zinc sulfide zinc blende and the iron sulfides pyrite and marcasite. Consequently, the percentage of ...Question: What is the maximum mass of pure lead that could be extracted from 95.0 g of galena, a lead ore with the chemical formula PbS? Be sure your answer has a unit symbol, if necessary, and is rounded to 3 significant digits. 0 …Lead(II) sulfate (PbSO 4) is a white solid, which appears white in microcrystalline form.It is also known as fast white, milk white, sulfuric acid lead salt or anglesite.. It is often seen in the plates/electrodes of car batteries, as it is formed when the battery is discharged (when the battery is recharged, then the lead sulfate is transformed back to metallic lead and …Galena is the natural mineral form of lead sulfide. It is one of the most abundant and widely distributed sulfide minerals. It is the most important lead ore mineral. It is also an important source of silver, which is often found in the mineral. It was once used as the semiconductor (or "crystal") in crystal radio sets.Galena is a lead sulfide mineral with a chemical composition of PbS. It is the world's primary ore of lead and is mined from a large number of deposits in many countries. It is found in igneous and metamorphic rocks in medium- to low-temperature hydrothermal veins. Minerals are materials that meet five requirements. They are: 1) naturally occurring, 2) inorganic, 3) solids, 4) with a definite chemical composition, and, 5) an ordered internal structure.8 Okt 2020 ... Common Lead Ore Minerals in Missouri. Galena. Chemical composition: PbS or lead sulfide. Galena that contains silver in the crystal matrix is ...Learn how to write the entire formula for the chemical reaction in a smoke detector. Advertisement It is more a physical reaction than a chemical reaction. The americium in the smoke detector is emitting high-speed alpha particles (helium n...Apr 28, 2022 · Galena is a mixture, not a compound and so it does not have a chemical formula. It is a mixture of sulphides of lead, silver, arsenic, antimony and copper. It is mainly PbS. In 1973, another study found that chemical analysis of garnierite samples yields non-stoichiometric formulae that can be reduced to formulas like those of talc and serpentine. The authors suggested a talc monohydrate formula of (Mg,Ni) 3 Si 4 O 10 (OH) 2 ·H 2 O for the talc-like garnierite. A third study found Mg, Si, Fe, Ni and Al in the ...

General Galena Information : Chemical Formula: PbS : Composition: Molecular Weight = 239.27 gm Lead 86.60 % Pb Sulfur 13.40 % S _____ 100.00 % : Empirical Formula: PbS : Environment: Lead sulfide ore veins, and disseminated in igneous and sedimentary rocks. IMA Status: Valid Species (Pre-IMA) Prehistoric : Locality: . Zazzle wedding guest book

The total DOS of perfect galena and galena containing Ag, Cu, Bi, and Mn impurities is shown in Fig. 7.21. It can be seen that the total DOS of n-type surfaces (Bi-doped and Mn-doped surface) shifts to negative energy, compared with the p-type surface (Ag-doped, Cu-doped, and perfect surface), indicating that the electronic energy level of the ...Roasting of galena (PbS): The concentrated ore is roasted at a moderate temperature in a reverberatory furnace and in a limited supply of air. The balanced chemical equations are as given below. 2 P b S + 3 O 2 → 2 P b O + 2 S O 2 ↑ P b S + 2 O 2 → P b S O 4 .Galena specimens must be taken care of more so then other minerals. They are easily damaged, and ...Galena is the primary ore mineral of lead. Worked for its lead content as early as 3000 BC, it is found in ore veins with sphalerite, pyrite, chalcopyrite, tennantite-tetrahedrite, etc. and in skarns, as well as in sedimentary rocks where it may replace carbonate beds or be deposited in pore spaces. The crystals are bright when fresh but often ...Galena is a mixture, not a compound and so it does not have a chemical formula. It is a mixture of sulphides of lead, silver, arsenic, antimony and copper. It is mainly PbS.Troilite has a chemical composition of FeS, while pyrrhotite's chemical composition is Fe (1-x) S. Pyrrhotite is deficient in iron because some of the iron sites in its crystal lattice are vacant (empty). That is why the iron in the formula has a subscript of 1-x. The value of "X" in the chemical formula of pyrrhotite can range between 1 and 0.17.Gypsum is the mineral that includes in its structure Sulfate ion, which makes it a sulfate mineral, and of all the sulfate minerals, Gypsum is the most common. Gypsum is composed of hydrated calcium sulfate, and its chemical formula is CaSO4.2H2O. It is a natural salt mineral, that is to say, an evaporite mineral, and is mostly found along with ...Galena is a lead sulfide mineral with the chemical formula PbS. It consists of lead (Pb) and sulfur (S) atoms arranged in a cubic crystal lattice structure. Unlike minerals with magnetic properties, such as magnetite (Fe3O4), galena lacks the necessary combination of elements and atomic arrangement to exhibit magnetism.Chemical Formula: PbS Composition: Molecular Weight = 239.27 gm Lead 86.60 % Pb Sulfur 13.40 % S ______ 100.00 % Empirical Formula: PbS Environment: Lead sulfide …Oct 18, 2023 · Sphalerite is often found with galena, a lead ore. Sphalerite is a mineral, mixed with zinc and iron sulfide. The chemical formula of Sphalerite is (Zn, Fe)S. The dispersion of sphalerite (0.156) is three times that of diamond, which has a dispersion of 0.44. Learn how to write the entire formula for the chemical reaction in a smoke detector. Advertisement It is more a physical reaction than a chemical reaction. The americium in the smoke detector is emitting high-speed alpha particles (helium n...Garnets (/ ˈ ɡ ɑːr n ɪ t /) are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives.. All species of garnets possess similar physical properties and crystal forms, but differ in chemical composition.The different species are pyrope, almandine, spessartine, grossular (varieties of which are hessonite or cinnamon …Colorless to white, often tinted grey, yellow, green or blue; colourless in transmitted light. Named in 1832 by Francois Sulpice Beudant for the type locality, the Parys Mine on the Island of Anglesey (Ynys Môn) in Wales, U.K. Baryte Group. Along with cerussite, the most common secondary lead mineral.Minerals (O-S) » Kirkby Teaching Materials Galena Sulfide mineral About Galena In Our Earth In Our Society In Our Future In the Upper Midwest Gallery Galena Properties Commonly confused with... Did you know... Galena is the most abundant lead mineral, has been mined for millennia, and remains our major source of that metal.In this video we'll write the correct formula for Lead (II) sulfate, PbSO4.To write the formula for Lead (II) sulfate we’ll use the Periodic Table, a Common ...Galena is a rocksalt group, sulfide mineral with a chemical formula of PbS. Find facts and data about Galena.Cassiterite is a tin oxide mineral, SnO 2. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. Cassiterite was the chief tin ore throughout ancient history and remains the most important source of tin today..

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