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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Hornblende from
Shibukawa, Shizuoka Prefecture, Japan


Locality type:Outcrop
Classification
Species:Calcium Amphibole Subgroup var: Hornblende
Formula:AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hornblende data
Locality Data:Click here to view Shibukawa, Shizuoka Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:1785317
Long-form Identifier:1:3:1785317:2
GUID (UUID V4):0
References
Tomioka, Yuki; Kouketsu, Yui; Michibayashi, Katsuyoshi (2025) The Peak Metamorphic P–T Conditions of the Sanbagawa Schists in the Shibukawa Area, Central Japan: Application of Raman Geothermobarometry. Minerals, 15 (7). p.724. doi:10.3390/min15070724
 
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