At-A-Glance
Country of Origin
CO
United States
Contributors
Underwood
Photos
Essential Information
Specimen ID
4674
Mineral Name
Sylvanite
Chemical Formula
(Au,Ag)2Te4
Additional Details
Specimen Number
002
Physical Description
Brass and pale gold flecks in gray quartz matrix
Geographic Origin
Locality Nickname
Keystone Mine, Boulder Co., Colorado
Locality Lat/Long
39.9891529, -105.3672155
Mining District
Magnolia District
Mine Name
Keystone Mine
MinDat Locality URL
Additional Details
Original Attributed Locality
Colorado
Boulder County
Sunshine