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Stilbite-Ca & Epidote On Smoky Quartz

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CLB86128

Stilbite-Ca & Epidote On Smoky Quartz

Classic Locality

Description Tabs

Description
Locality: 
Strzegom, Strzegom-Sobótka Massif, Lower Silesian Voivodeship, Poland
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5.5 × 5.2 cm
Description

A rather large smoky quartz crystal is completely covered with orange-brown stilbite-ca and green epidote. Many epidote needles are included in the quartz. With minor microcline. A minor ding at the quartz where it doesn't matter.

Mineral Data
What's on the rock

Stilbite-Ca

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

Smoky Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0

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