Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Chert from
Cass Mine (Congdon Trust et al), Biwabik, Saint Louis County, Minnesota, USA


Locality type:Mine
Classification
Type:Chert
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chert data
Locality Data:Click here to view Cass Mine (Congdon Trust et al), Biwabik, Saint Louis County, Minnesota, USA
Data Identifiers
Mindat Occurrence Record ID:502698
Long-form Identifier:1:3:502698:2
GUID (UUID V4):0
Nearest other occurrences of Chert
0.4km (0.2 miles) ⓘWilliams Mine (J & L Steel Corp), Biwabik, Saint Louis County, Minnesota, USA
0.9km (0.6 miles) ⓘCincinnati Mine (Biwabik Mine), Biwabik, Saint Louis County, Minnesota, USA
1.2km (0.7 miles) ⓘAjax Mine (Kanawha Mine; U S Steel Corp), Biwabik, Saint Louis County, Minnesota, USA
1.3km (0.8 miles) ⓘDuluth Mine (J & L Steel Corp), Biwabik, Saint Louis County, Minnesota, USA
1.7km (1.0 miles) ⓘHector Mine (Hale Mine; State of Minnesota), Biwabik, Saint Louis County, Minnesota, USA
1.8km (1.1 miles) ⓘCanton Mine (J & L Steel Corp), Biwabik, Saint Louis County, Minnesota, USA
2.0km (1.2 miles) ⓘHiggins No.1 Canton Mine (J & L Steel Corp), Biwabik, Saint Louis County, Minnesota, USA
2.1km (1.3 miles) ⓘU.S. Steel Reserve O-43 Prospect (U S Steel Corp), Biwabik, Saint Louis County, Minnesota, USA
2.3km (1.4 miles) ⓘRuddy Mine (J & L Steel Corp), Biwabik, Saint Louis County, Minnesota, USA
2.4km (1.5 miles) ⓘBangor Mine, White Township, Saint Louis County, Minnesota, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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