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Yugawaralite & Calcite

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UVM833143

Yugawaralite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Hvalstöðin, Hvalfjörður, Hvalfjarðarsveit, Western Region, Iceland
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.6 × 1.5 cm
Description

A rich miniature specimen featuring sharp crystals of yugawaralite growing between the folds in calcite matrix.

Mineral Data
What's on the rock

Yugawaralite

Formula: 
CaAl2Si6O16·4H2O
Strunz: 
9.GB.15
Hardness: 
4.5
Streak: 
White
Type Locality: 
Yugawara Hot Spring, Yugawara, Kanagawa Prefecture, Kanto Region, Honshu Island, Japan

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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