[DOC] [TLE] Galena - Wikipedia [PAR] Galena, also called lead glance, is the natural mineral form of lead(II) sulfide. It is 
the most important ore of lead and an important source of silver. ... In some 
deposits galena contains about 1-2 percent silver, a byproduct that far outweighs 
the ... Galena belongs to the octahedral sulfide group of minerals with metal ions 
in... [DOC] [TLE] Galena Mineral | Uses and Properties - Geology.com [PAR] The primary ore of lead that is sometimes mined for its silver content ... Because 
lead is a primary element in galena, the mineral has a high specific gravity (7.4 to 
7.6) that is immediately noticed when ... Assume that we have a mine that 
produces argentiferous galena with an average composition of 86% lead, 13% 
sulfur... [DOC] [TLE] Ore minerals - Mineralogical Society of America [PAR] Boron - Chief source is playa lake deposits of borax, colemanite, kernite, ulexite. 
... Some primary "ore" may contain up to 200 ppm. ... not used as iron sources 
due to the difficulty of removing sulfur from the metals and the brittleness this 
sulfur caused in the metal. Lead - The primary ore mineral for lead is it's sulfide - 
galena. [DOC] [TLE] Galena: The mineral galena information and pictures [PAR] Some cubic crystals have their edges cut by the partial octahedral growth, some 
... Galena containing bismuth may exhibit octahedral cleavage, and silver in ... 
Galena specimens may tarnish when exposed to air, becoming dull in luster. ... 
the lead from the sulfur is very simple, thus lead has been extracted from Galena
... [DOC] [TLE] Caveman to Chemist Projects: Acids [PAR] But it also contains minor amounds of zinc sulfide and silver sulfide. ... All metals 
are more or less soluble in acid, but different metals are soluble in different acids. 
... He then goes on to describe the extraction of vitriol from its ore by solution and 
... When the sulfur trioxide reacted with the water, sulfuric acid was produced: [DOC] [TLE] University of Minnesota's Mineral Pages: Galena [PAR] Galena is the most abundant lead mineral, has been mined for millennia, and 
remains our major source of that metal. ... Its use pervades past and present 
societies providing many benefits, but also raising some serious health issues. ... 
Its perfect cubic cleavage, metallic luster, lead-gray color, and relative softness 
readily... [DOC] [TLE] Lead and Zinc - Department of Energy [PAR] The two principal minerals containing lead and zinc are galena and sphalerite. ... 
Complex ores are also the source of byproduct metals such as bismuth, ... United 
States, which is one of the chief lead-mining countries. ... Some veins of ore lie ... 
companies can make separated concentrates of copper and lead when they... [DOC] [TLE] List of Minerals - Sandatlas [PAR] Silicates are minerals that contain SiO4 tetrahedra in their crystal structure. ... 
Plagioclase is also very common in metamorphic rocks but compared with its 
abundance in ... for them in the lower crust  water gets pushed out of the crystal 
structure. ..... However, pyrite has been mined as a source of iron and sulfur and 
some... [DOC] [TLE] Outdoor Idaho's Silver Valley Rising (Idaho Public Television) [PAR] Q: The lead smelter in the valley was the chief source of lead poisoning. ... Coeur 
d'Alene district is three primary minerals called tetrahedrite, galena and 
sphalerite. ... To get the metals out of the ore, you essentially have to melt it. ... I've 
spent some time dwelling on this because it's important to realize, lead oxide is a 
much... [DOC] [TLE] Division of Geology and Land Survey - Missouri Department of ... [PAR] derived from mineral fuels; some plastics and textiles are manufactured from 
mineral ... sified as metallic (such as galena, chalcopyrite and hematite), 
nonmetallic ... This set contains 20 of Missouri's common rocks and minerals. ... It 
is also a source of ... In addition to its many uses when in the form of limestone, 
large calcite. [DOC] [TLE] lead facts, information, pictures | Encyclopedia.com articles about lead [PAR]

Question: While the mineral galena contains some sulfur, it's the chief source for getting this metal out
Answer: Lead