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Quartz & Schorl

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ATH627499

Quartz & Schorl

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 8 × 7.5 cm
Weight: 
608.00gr
Description

On the matrix pressed quartz covered by an unknown material from Erongo, Namibia. On the quartz you can find some black tourmaline also covered by that substance.

To be honest - the specimen looks rather dirty.
But it looks realy strange because the two "pressed" quartz look like "two horns" coming out of the matrix.

Maybe something for collectors of oddities.

 

Mineral Data
What's on the rock

Quartz

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

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0

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