15.7oz Silvermines District Greisen Specimen | Cox Collection Old Stock MO
USD 27.00 USD
Specifications
| Country Of Origin | United States |
Locality: Silvermines District (Einstein Mine area), Madison County, Missouri. Rock Type: Greisen (Highly altered granitic rock). This specific type of rock is famous in Missouri for being the host matrix for rare, high-temperature minerals including native silver, tungsten (wolframite), and topaz.

