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Harmotome

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QRI845123

Harmotome

Former collection Christian Mavris
Classic Locality

Description Tabs

Description
Locality: 
Bellsgrove Mine, Strontian, Highland, Scotland, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 5.9 × 5 cm
Largest Crystal: 
1.00cm
Weight: 
268.00gr
Description

A rich cabinet featuring a dozen well-formed harmotome crystals covering a yellow calcite-rich layer. Textbook shape for the harmotome, with good lustre and minimal peripheral bruise. 

Acquired from a UK collector a few years ago, the label reports it was collected in 1981.

Mineral Data
What's on the rock

Harmotome

Formula: 
(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] ·12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany

Current price

$

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$10
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Start 23 Apr 18:00
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Shipping Information

Postage Area Price
Italy (Pacco Celere 3)
10
Europe/Mediterranean Basin (Tracked; Zone 1)
22
Americas, Asia, Africa (Tracked; Zone 2)
30
Australia & Oceania (Tracked; Zone 3)
40

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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

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