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Manganoan Calcite & Quartz

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NST623381

Manganoan Calcite & Quartz

With Antique Label

Description Tabs

Description
Locality: 
Java, Indonesia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 2.4 × 1.5 cm
Description

Two sceptered quartz crystals measuring 5.2 x 2.4 x 1.5 cm and 3 x 1.3 x 1.3 cm. The larger one is double terminated and also shows a fluid inclusion with a moving bubble. Both crystals a partly covered with pinkish crystals of manganoan calcite. Very interesting old timer from an uncommon locality.

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
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