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Boltwoodite & Calcite

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PPM1113122

Boltwoodite & Calcite

Ex. Eric Quinter Collection, Ex Pequa Minerals
Radioactive

Description Tabs

Description
Locality: 
Goanikontes, Arandis, Erongo Region, Namibia
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.4 × 4.5 × 3.8 cm
Weight: 
86.00gr
Description

Excellent example of bright yellow boltwoodite with fairly large, sturdy accicular crystals on calcite matrix, from old finds at the classic locality of Goanikontes, Arandis, Erongo Region, Namibia. From the noted collection of Eric Quinter (1947-2024), one of the best private collections of uranium minerals in the United States! 

Posted on Mindat, Harold Moritz's Photo Gallery (Coll. #U/Th 0156)

Mineral Data
What's on the rock

Boltwoodite

Formula: 
(K,Na)(UO2)[HSiO4]·0.5H2O
Strunz: 
9.AK.15
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Pick's Delta Mine (Delta Mine; Pick's Mine), Delta, San Rafael District (San Rafael Swell), Emery Co., Utah, USA...

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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Start 17 Apr 18:00
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Shipping Information

Postage Area Price
<2 Pounds (<907 grams) Priority Mail USA (Estimate) ~$10
$10
<2 Pounds (<907 grams) Standard International (Estimate) ~$25+
$30

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