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Stilbite & Epidote

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WND849180

Stilbite & Epidote

Description Tabs

Description
Locality: 
Diaboukara, Arrondissement Diakon, Cercle de Bafoulabé, Kayes Region, Mali
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.3 × 3.2 cm
Description

This is a fine combination piece of bow-tie shaped pale yolk yellow Stilbite and deep olive-coloured Epidote. Both species are excellent defined, sharp edged and high lustrous. This is an exceeding aesthetic miniature specimen in splendid condition.

Mineral Data
What's on the rock

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

Epidote

Formula: 
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05a
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
Colorless
Type Locality: 
Bourg d'Oisans, Isère, Rhône-Alpes, France...
Wendel Minerals

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