Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Quartz from
Kawazu mine (Rendaiji mine; Rendaizi mine), Rendaiji, Shimoda City, Shizuoka Prefecture, Japan


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Covellite19
Stannoidite15
Pyrite13
Chalcocite13
Hemusite13
Chalcopyrite9
Tetradymite7
Native Tellurium4
Tellurite2
Dzhalindite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Kawazu mine (Rendaiji mine; Rendaizi mine), Rendaiji, Shimoda City, Shizuoka Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:58595
Long-form Identifier:1:3:58595:4
GUID (UUID V4):0
Nearest other occurrences of Quartz
5.7km (3.5 miles) ⓘSuzaki mine (Susaki mine), Shimoda City, Shizuoka Prefecture, Japan
6.8km (4.2 miles) ⓘNawaji mine, Kawazu, Kamo district, Shizuoka Prefecture, Japan
7.9km (4.9 miles) ⓘYanda, Kawazu, Kamo district, Shizuoka Prefecture, Japan
8.6km (5.4 miles) ⓘMine hot springs (Odoriko-onsen), Kawazu, Kamo district, Shizuoka Prefecture, Japan
15.4km (9.6 miles) ⓘBeach gravels, Nishiizu, Kamo district, Shizuoka Prefecture, Japan
16.3km (10.1 miles) ⓘKumomi, Matsuzaki, Kamo district, Shizuoka Prefecture, Japan
20.2km (12.5 miles) ⓘYugashima mine, Amagi-Yugashima, Shizuoka Prefecture, Japan
20.4km (12.6 miles) ⓘMochikoshi mine, Amagi-Yugashima, Shizuoka Prefecture, Japan
23.9km (14.9 miles) ⓘSeikoshi mine, Izu City, Shizuoka Prefecture, Japan
26.1km (16.2 miles) ⓘToi mine, Izu City, Shizuoka Prefecture, Japan
References
Ishibashi, Masao (1960) Au-Ag-tellurides from the Date mine, Hokkaido, Japan. Memoirs of the Faculty of Engineering, Hokkaido University, 11 (1) Hokkaido University. 73-84
Sadanaga, Ryoichi, Bunno, Michiaki (1974) The Wakabayashi Mineral Collection. Bulletin 7. The University Museum, The University of Tokyo
 
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