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Quartz On Prehnite

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SYA180034

Quartz On Prehnite

Antarctica expedition GANOVEX I

Description Tabs

Description
Locality: 
Prehnite Hill, Litell Rocks, Victoria Land, Eastern Antarctica, Antarctica
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.5 × 3.3 cm
Largest Crystal: 
2.70cm
Description

Clear quartz crystals on light green prehnite crystals.
The specimen was found during the first german antarctica expedition GANOVEX I 1979/80.Comes
with the original handwritten label of the mineralogist from this expedition.Quartz from this location is probably lacking in most collections.

Mineral Data
What's on the rock

Quartz

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

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa

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