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Manganoan Calcite On Quartz

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KSC736987

Manganoan Calcite On Quartz

Fluorescent

Description Tabs

Description
Locality: 
Gyudyurska Mine, Smolyan Oblast, Bulgaria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5 × 2.5 cm
Description

I consider this a specimen of really very high quality!First the crystals of calcite are twinned, sharp and wet lustrous!The surface is striated and clean and the form is symmetric!They sit on a matrix of quartz points that grow on spahlerite.The points are covered by calcite crusts in spherical shapes!The overall distribution is clever, with crystals on all directions and with the biggest in the center!The piece is a total floater, undamaged with no attachment point!Displays as you like!

Mineral Data
What's on the rock

Manganoan Calcite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Formula: 
(Ca,Mn)CO3
Hardness: 
0.0

Quartz

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

Current price

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10
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Start 06 Sep 18:00
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12
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