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Rhodochrosite Quartz & Stilbite

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KSC85758

Rhodochrosite Quartz & Stilbite

Description Tabs

Description
Locality: 
Starnitsa, Davidkovo, Smolyan Oblast, Bulgaria
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5 × 3.5 cm
Description

Rhodocrosite crystals of very intense color for the locality with quartz crystals,the largest I've seen from this find included by rhodochrosite. Large crystals of stilbite are present.

A very uncommon paragennesis from a defunct deposit.

The specimen is mined at least fourteen years ago.

Mineral Data
What's on the rock

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White

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