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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Muscovite from
Vein No. 2, Tsukubara mine, Kiryu City, Gunma Prefecture, Japan


Locality type:Occurrence
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Vein No. 2, Tsukubara mine, Kiryu City, Gunma Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:1596446
Long-form Identifier:1:3:1596446:5
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.0km (0.0 miles) ⓘVein No. 1, Tsukubara mine, Kiryu City, Gunma Prefecture, Japan
10.0km (6.2 miles) ⓘHagidaira mine, Seta, Midori City, Gunma Prefecture, Japan
13.6km (8.5 miles) ⓘAshio mine (Ashio copper mine), Ashio, Nikko City, Tochigi Prefecture, Japan
41.0km (25.5 miles) ⓘNebazawa mine, Katashina, Tone District, Gunma Prefecture, Japan
77.8km (48.4 miles) ⓘTakatori mine, Shirosato-machi, Higashiibaraki District, Ibaraki Prefecture, Japan
97.5km (60.6 miles) ⓘYokota Mine, Fukushima Prefecture, Japan
98.9km (61.5 miles) ⓘOgawa-yama, Kawakami-mura, Minamisaku District, Nagano Prefecture, Japan
References
Nishio-Hamane, Daisuke, Yajima, Takeshi, Ikari, Issei, Ohki, Yoshiya, Hori, Hirofumi, Ohara, Yoshihiro (2023) Kiryuite and gunmaite, two new minerals from Tsukubara, Kiryu City, Gunma Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 118 (1) 230605 doi:10.2465/jmps.230605
 
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