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Uralborite

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SKY652210

Uralborite

Rare Mineral

Description Tabs

Description
Locality: 
Fuka Mine, Bitchu-cho, Takahashi, Honshu Island, Japan
Class: 
Crystal Group/Cluster
Size Range: 
Micromount (under 1cm)
Size: 
0.4 × 0.2 × 0.2 cm
Description

Three small crystal groups of this rare mineral from a Japanese locality. and only one of the two known mineral localities worldwide.

In the biggest crystal group see crystal is gemmy, see photo.

Mineral Data
What's on the rock

Uralborite

Formula: 
Ca2[B3O3(OH)5·OB(OH)3]
Strunz: 
6.DA.35
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Novofrolovskoye B-Cu deposit, Turjinsk, Turya river, Krasnoturjinsk (Bogolovsk; Krasnotur'insk; Krasnoturyinsk), Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

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