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Ewaldite & Harmotome & Alstonite

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SHS1166499

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Description
Locality: 
Dolyhir Quarry, Wethel, Powys, Wales, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.2 × 0.3 cm
Description

Nice ewaldite with harmotome and alstonite on matrix

Mineral Data
What's on the rock

Ewaldite

Formula: 
Ba(Na,Ca,Y,Ce,K)(CO3)2·2.6H2O
Strunz: 
5.CC.05
Crystal System: 
Hexagonal
Hardness: 
0.0
Type Locality: 
Diamond Alkali Daco No. 3, Green River Formation, Sweetwater Co., Wyoming, USA

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

Alstonite

Formula: 
BaCa(CO3)2
Strunz: 
5.AB.35
Crystal System: 
Triclinic
Hardness: 
4.0 - 4.5
Streak: 
White
Type Locality: 
Brownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor District, North Pennines, North and Western Region (Cumberland), Cumbria, England, UK

Current price

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Starting price

$6
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Shipping Information

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Shipping Prices (registrated) for a mineral sample up to 500g:

Germany: 4,00 €,  EU : 7,20 € , non EU : 7,00

for a mineral sample up to 1000 g:

Germany: 4,00 €, EU: 9,35 €, non EU: 10,50 €

for a mineral sample up to 2000 g:

Germany: 4,00 €, EU: 19,35 €, non EU: 20,50 €

Bid History

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