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Ferri-winchite Riebeckite & Garnet

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CLB567492

Ferri-winchite Riebeckite & Garnet

ex collection Manfred Schaeffer

Description Tabs

Description
Locality: 
Tinos Island, South Aegean, Greece
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 2.6 cm
Description

Hay-colored ferri-winchite (analyzed) with tiny brown garnet crystals (I guess). The blueish materal hasn't been analyzed.

Mineral Data
What's on the rock

Ferri-winchite

Formula: 
☐[CaNa][Mg4(Fe3+,Al)]Si8O22(OH)2
Strunz: 
9.DE.20
Hardness: 
5.5
Colour: 
black
Type Locality: 
Ilmenogorsky alkaline complex (Ilmensky), Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Riebeckite

Formula: 
◻[Na2][Fe2+3Fe3+2]Si8O22(
Strunz: 
9.DE.25
Hardness: 
5.0 - 5.5
Type Locality: 
Socotra Island, Adan Governorate, Yemen

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