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Chiyokoite

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SKY830410

Chiyokoite

Type Locality

Description Tabs

Description
Locality: 
Fuka Mine, Bitchu-cho, Takahashi, Honshu Island, Japan
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.6 × 0.5 cm
Description

Peach pink colored crystals of the new and extremely rare mineral chiyokoite (IMA 2019-054) from the type and only known locality worldwide, the Fuka mine in Japan.

Chiyokoite is a complex borate, member of the ettringite group.

Unique combination of elements. First group member (one of the most complex) with As.

Ex-Alfredo Petrov specimen with label included.

Mineral Data
What's on the rock

Chiyokoite

Formula: 
Ca3Si(CO3){[B(OH)4]0.5(AsO3)0.5}(OH)6·12H2O
Crystal System: 
Hexagonal
Type Locality: 
Fuka Mine, Bitchu-cho, Takahashi, Honshu Island, Japan

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