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Andradite Var Melanite Hematite & Clinozoisite

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SLN700564

Andradite Var Melanite Hematite & Clinozoisite

Description Tabs

Description
Locality: 
Lake Baikal, Irkutsk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
5.7 × 12.8 × 9.5 cm
Weight: 
900.00gr
Description

Old specimen fron Sacchi collection with an aesthetic association of andradite var melanite in a myriad of black crystals of excellent brightness, hematite in the rare octahdral crystalline form and clinozoisite in elongated crystals reunited in fan shaped aggregates

Mineral Data
What's on the rock

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

Melanite

Variety Of: 

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Hardness: 
0.0
Colour: 
Black

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

Clinozoisite

Formula: 
{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05a
Hardness: 
7.0
Type Locality: 
Gösleswand (Goslerwand), Prägraten, Virgen Valley, East Tyrol, Tyrol, Austria

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