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Prehnite Quartz & Babingtonite

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FRN136330

Prehnite Quartz & Babingtonite

Description Tabs

Description
Locality: 
Qiaojia County, Zhaotong Prefecture, Yunnan Province, China (Peoples Republic)
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.5 × 5.2 cm
Largest Crystal: 
1.90cm
Description

Cluster of transparent gemmy quartz crystal associated with greenish botryoidal crystallized prehnite crystals; there are several micro babingtonite crystals scattered on it.

Mineral Data
What's on the rock

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Babingtonite

Formula: 
Ca2(Fe,Mn)FeSi5O14(OH)
Strunz: 
9.DK.05
Crystal System: 
Triclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Arendal Iron Mines, Arendal, Aust-Agder, Norway
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