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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Siderogel from
Matsuiwa mine (Kohoku mine), Kesennuma City, Miyagi Prefecture, Japan


Locality type:Mine
Classification
Species:'Siderogel' (not an IMA approved species)
Formula:~FeO(OH) · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderogel data
Locality Data:Click here to view Matsuiwa mine (Kohoku mine), Kesennuma City, Miyagi Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:299472
Long-form Identifier:1:3:299472:7
GUID (UUID V4):0
Nearest other occurrences of Siderogel
38.8km (24.1 miles) ⓘEsashi ward, Oshu City, Iwate Prefecture, Japan
References
 
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