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Ilvaite Andradite & Limonite

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PFK510274

Ilvaite Andradite & Limonite

Classic Locality

Description Tabs

Description
Locality: 
Serifos Island, Milos, South Aegean, Greece
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
12.5 × 10.5 × 5.5 cm
Description

A classic, large and unusual example of ilvaite from Seriphos. Several crystals are leaping out of a contrasting white matrix, partly covered with a limonite coating that can be removed chemichally. Limonite-covered crystals of andradite are scattered on the ilvaites adding to the association!

Mineral Data
What's on the rock

Ilvaite

Formula: 
CaFe2+2Fe3+(Si2O7)O(OH)
Strunz: 
9.BE.07
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Torre di Rio - Santa Filomena area (Monte della Torre), Rio Marina, Elba Island, Livorno Province, Tuscany, Italy

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

Seller Information

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