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Rhodochrosite Psm Calcite & Quartz

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PFK743895

Rhodochrosite Psm Calcite & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Madem-Lakko Mine, Cassandra Mines, Aristotelis, Chalkidiki, Central Macedonia, Greece
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.1 × 5.8 × 4.2 cm
Description

Here is a superb and quite large example of this unique pseudomorph from this classic and closed locality. A large main rhomb measuring 6.4cm across is a rhomb that used to be calcite but has been replaced with rhodochrosite and covered with micro crystals of quartz. On a little bit of matrix, this is large pseudomorphed crystal!

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Quartz

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

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