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Murunskite & Charoite

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MNR621521

Murunskite & Charoite

ex. Rudolf Ďuďa collection
Type Locality

Description Tabs

Description
Locality: 
Murunskii Massif, Aldan Shield, Sakha Republic, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 1.8 × 1.2 cm
Description

Extremely rare black-brown murunskite crystals associated with charoite. The sample comes from its type locality.

Ex. Rudolf Ďuďa collection

Mineral Data
What's on the rock

Murunskite

Formula: 
K2(Cu,Fe)4S4
Strunz: 
2.BD.30
Crystal System: 
Tetragonal
Hardness: 
3.0
Colour: 
Brown
Type Locality: 
Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

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