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Smithsonite With Willemite

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PDM1162781

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Description
Locality: 
Berg Aukas, Grootfontein, Otjozondjupa Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.4 × 8 × 5 cm
Weight: 
453.00gr
Description

Dense cream yellowish layered smithsonite, with a crystallized sugary botryoidal surface, on a reddish matrix that is very rich in small euhedral willemite crystals. Under short UV, willemite gets a strong greenish-white colour while smithsonite gets yellow under long UV. This type of compacted botryoidal material from Berg Aukas was often sold in shops and dealerships in Tsumeb and the error passed on to collectors, such as this one, bought in Tsumeb in 1978 by well-known Belgian collector Willy Israël.

Acquired in 16/6/1979 to W. Israël. Ex Gustaf collection #648, with his handwritten label.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Smithsonite

Formula: 
ZnCO3
Strunz: 
5.AB.05
Hardness: 
4.0 - 4.5
Streak: 
White

Willemite

Formula: 
Zn2SiO4
Strunz: 
9.AA.05
Hardness: 
5.5
Streak: 
White
Type Locality: 
Vieille Montagne (Altenberg; Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province, Belgium

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10
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Start 22 Jan 18:00
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Shipping Information

Postage Area Price
Belgium (Tracked)
7
NL, DE, FR, LU (Tracked)
11
EUROPE 1 . or 2 (Tracked)
12.16
CANADA (Tracked)
22
USA (NOT Tracked) . or USA (Tracked)
25
REST (Tracked)
25

Seller Information

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