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Stilbite & Epidote

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SLN609017

Stilbite & Epidote

Description Tabs

Description
Locality: 
Sadiola, Commune Sadiola, Cercle de Kayes, Kayes Region, Mali
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.3 × 6.2 × 3.8 cm
Weight: 
79.00gr
Description

Aesthetic and interesting specimen from Mali of stilbite in crystals reunited in big rounded aggregates of a beautiful creamy yellow color associated with dark green epidote. Crystals are present in all side of the piece as shown by photos

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...

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