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Tourmaline With Stilbite

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FCM623209

Tourmaline With Stilbite

Classic Locality

Description Tabs

Description
Locality: 
Himalaya Mine, San Diego County, California, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 3.1 × 3.3 cm
Largest Crystal: 
1.50cm
Description

This specimen consists of twin pink-green 1.5 cm terminated tourmaline crystals with an opalescent luster associated with colorless crystals of stilbite, an unusual combination.

Mineral Data
What's on the rock

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White

Seller Information

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