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Muscovite
Specimen ID:
4XU-L6H
Mineral(s)
Muscovite
:
KAl
2
(AlSi
3
O
10
)(OH)
2
Locality
Mindat locality:
Diamond Mica Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
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“
Approximately 25 cm muscovite crystal in quartz. South Dakota School of Mines & Technology Museum of Geology.
”
Stephen Fritz
- 12th June 2009
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10,445,531 minIDs have been issued as of 10th May 2024 5:00 pm UTC