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Hyalite Opal & Tourmaline Var Schorl

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FCM1160248

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 3.3 × 1.7 cm
Largest Crystal: 
1.50cm
Description

Sharp, lustrous black schorl crystals to 1.5 cm with hyalite opal between the schorl crystals. The opal exhibits bright green fluorescence under SW UV light.  

 

Previous labels supplied (not photographed)
Mineral Data
What's on the rock

Hyalite

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Streak: 
white

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Streak: 
White

Tourmaline

Formula: 

A(D3)G6(T6O18)(BO3)3X3Z

Crystal System: 
Trigonal
Hardness: 
7

Schorl

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

Current price

$

Starting price

$10
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Start 13 Jan 18:00
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Shipping Information

Postage Area Price
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$12.60
Canada
$17.50
Europe
$21.50
ROW
$23

Seller Information

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