Galena Group. Galena has a hardness of 2.5 on the Mohs scale. The mineral galena is lead sulfide, PbS, and will not respond to a magnet like iron will. Missouri, Illinois, Iowa, and Wisconsin all have significant deposits. Because of this, silver-rich Galena is also an ore of silver. A link can be found below to check facts and learn more. and in skarns, as well as in sedimentary rocks where it may replace carbonate beds or be deposited in pore spaces. No, galena is not magnetic. . Missouri, Illinois, Iowa, and Wisconsin all have significant deposits. Galena is found in hydrothermal ore veins associated with chalcopyrite and quartz. Galena from certain regions is rich in silver, and some specimens may contain as much as 20 percent silver. The mineral has occasionally been observed as a replacement of organic matter and sometimes occurs in coal beds. It is also found in metamorphic and sedimentary rocks. Galena is found in cavities and brecciated (fractured) zones in limestone and chert, as in the extensive Mississippi River valley deposits, where 90 percent of the U.S. production of lead is mined. In the United States galena is found in the Mississippi Valley. It is also found in metamorphic and sedimentary rocks. Worked for its lead content as early as 3000 BC, it is found in ore veins with sphalerite, pyrite, chalcopyrite, tennantite-tetrahedrite, etc. Galena is found in hydrothermal ore veins associated with chalcopyrite and quartz. Galena is by far the greatest ore of lead. The Rocky Mountain States of Colorado, Utah, Idaho, and Montana also have significant deposits." Missouri, Illinois, Iowa, and Wisconsin all have significant deposits. It is found in many other places but I'm just listing the deposits in the U.S. It has a specific gravity of about 7.4. to 7.6. Galena is main mineral in which lead is found.

In the United States galena is found in the Mississippi Valley.
Galena is the primary ore mineral of lead. The extraction process to remove the lead from the sulfur is very simple, thus lead has been extracted from Galena since the earliest times.



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