| Locality type: | Mining District |
| Classification |
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| Species: | Saponite |
| Formula: | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Saponite data |
| Locality Data: | Click here to view Richardson Mining District, Grand County, Utah, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 183277 |
| Long-form Identifier: | 1:3:183277:8 |
| GUID (UUID V4): | 0 |
| References |
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| Reference Search (possible matching items) |
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 | | Book | | some prospecting and mining was carried out by
the Russians. The first recorded mining venture in Alaska...1912. Following the change of ownership of Alaska, mining
and exploration activity continued at a low level...important discoveries
spread throughout Alaska. Gold mining has made a major
contribution to Alaska mineral...World War II when a moratorium was
imposed on gold mining.
Deposits of copper and associated precious metals...southern Alaska by private companies and the USGS.
Mining of coal in the Matanuska Valley from 1916 to 1970 | | | Book | | some prospecting and mining was carried out by the Russians. The first recorded mining venture in Alaska...1912. Following the change of ownership of Alaska, mining and exploration activity continued at a low level...important discoveries spread throughout Alaska. Gold mining has made a major contribution to Alaska mineral...World War II when a moratorium was imposed on gold mining. Deposits of copper and associated precious metals...near Kennicott were discovered in 1900 and the district produced large amounts of copper and silver from |
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