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Schorl

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QRI648905

Schorl

Former stock Bruno Cerato

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.7 × 2.9 cm
Description

A very good single crystal of jet black shorl. Double terminated, floater and off matrix, it shows that it did crystallise attached to another penetrating crystal, which then detached, but the contact was later finely recrystalized.

The specimen shows perfectly developed prism and pyramid faces, with excellent luster. Some of the faces show a rather 'corroded' pattern, which has some crystallographic implications. These faces, as were the rougher, are also the ones hosting some iron oxides, which I did not attempt to remove chemically to preserve its geological signature.

In excellent conditions. Dated to the late 90s, former collection and stock Bruno Cerato.

Boxed with Label
Mineral Data
What's on the rock

Schorl

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

Current price

$

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$5
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Start 30 Jan 18:00
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Shipping Information

Postage Area Price
Italy (Pacco Celere 3)
10
Europe/Mediterranean Basin (Tracked; Zone 1)
15
Americas, Asia, Africa (Tracked; Zone 2)
20
Australia & Oceania (Tracked; Zone 3)
25

Seller Information

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Shipping within 15 days after payment received, unless specified/agreed otherwise.

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