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Armstrongite & Aegirine

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UVM611033

Armstrongite & Aegirine

Type Locality

Description Tabs

Description
Locality: 
Khan Bogd, Khanbogd District, Ömnögovi Aimag, Mongolia
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 2.9 × 2.6 cm
Description

Armstrongite in matrix, with small aegirine crystals forming a black layer.

Mineral Data
What's on the rock

Armstrongite

Formula: 
CaZr[Si6O15]·3H2O
Strunz: 
9.EA.35
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Dorozhnyi pegmatite, Khan Bogdo Massif (Khan-Bogdinskii), Gobi Desert, Mongolia

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway

Seller Information

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