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Charoite Tinaksite & Aegirine

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PDM686212

Charoite Tinaksite & Aegirine

Type Locality

Description Tabs

Description
Locality: 
Murunskii Massif, Aldan Shield, Sakha Republic, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.2 × 5.4 × 3.6 cm
Description

Large polished block of intense purple coloured fibrous charoite crystals. It is included by fine orange gemmy tinaksite crystals and this is the type locality of both charoite and tinaksite. Black radiated aggregates of aegirine crystals contrast beautifully in the purple charoite matrix too.

Ex. J. Muizebelt specimen.

Mineral Data
What's on the rock

Charoite

Formula: 
(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4·~3H2O
Strunz: 
9.DG.92
Hardness: 
5.0 - 6.0
Type Locality: 
Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

Tinaksite

Formula: 
K2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]
Strunz: 
9.DG.75
Hardness: 
6.0
Type Locality: 
Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

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

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