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Piemontite & Spessartine

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AST715265

Piemontite & Spessartine

Description Tabs

Description
Locality: 
Trikorfo, Theologos, Thasos, East Macedonia and Thrace, Greece
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 8.5 × 3.5 cm
Description

Interesting specimen of spessartine garnets set on piemontite rich matrix. Unique combination for Greece known only from this locality and hard to get at this size.

Mineral Data
What's on the rock

Piemontite

Formula: 
{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05
Hardness: 
6.0 - 6.5
Streak: 
Reddish
Type Locality: 
Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy

Spessartine

Formula: 
Mn2+3Al2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.5
Streak: 
White
Type Locality: 
Sommer quarry, Wendelberg, Haibach, Aschaffenburg, Spessart, Franconia, Bavaria, Germany

Seller Information

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