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Henmilite & Olshanskyite

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SCH58106

Henmilite & Olshanskyite

Description Tabs

Description
Locality: 
Fuka Mine, Bitchu-cho, Takahashi, Honshu Island, Japan
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.4 × 1.3 cm
Largest Crystal: 
0.40cm
Description

A sharp, lustrous deep blue henmilite crystal to 4mm is set on contrasting white matrix and associated with pearly white micro olshanskyite crystals. There are some other smaller henmilite crystals present.

Superb miniature with a quite large henmilite crystal.

Mineral Data
What's on the rock

Henmilite

Formula: 
Ca2Cu[B(OH)4]2(OH)4
Strunz: 
6.AC.30
Hardness: 
1.5 - 2.0
Type Locality: 
Fuka mine, Fuka, Bicchu-cho (Bitchu-cho), Takahashi City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan

Olshanskyite

Formula: 
Ca3[B(OH)4]4(OH)2
Strunz: 
6.CA.55
Hardness: 
4.0
Type Locality: 
Titovskoe B deposit, Tas-Khayakhtakh Range, Dogdo River Basin, Polar Yakutia, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia
schani

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