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Ettringite

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FRR1039706

Ettringite

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Description
Locality: 
NChwaning Mines, Kuruman, Northern Cape Province, South Africa
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.5 × 1 cm
Largest Crystal: 
1.30cm
Description

Yellowish, hexagonal prismatic crystals of Ettringite set on matrix, with minor granular black Braunite from the Mn fields in South Africa.

Nice toenail!

Mineral Data
What's on the rock

Ettringite

Formula: 
Ca6Al2(SO4)3(OH)12·26H2O
Strunz: 
7.DG.15
Hardness: 
2.0 - 2.5
Type Locality: 
Ettringer Feld, Western lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany

Current price

Starting price

10
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Start 14 Apr 18:00
End
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Shipping Information

Postage Area Price
Inside Italy
10
Other EU Countries
14
USA, Canada, South America
30
Asia, Oceania
35

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

The item can be returned for whichever reason, provided its original conditions, and within 10 days from its delivery to the Buyer. In the case of returning, the Buyer will be entitled to the refund of the item price; shipping costs will remain at the Buyer's charge in any case.

Bid History

Full bid history