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Kemmlitzite

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HCH686114

Kemmlitzite

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Description
Locality: 
Weiskirchen, Merzig, Saarland, Saarland, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.8 × 0.7 cm
Largest Crystal: 
0.04cm
Description

Small beige coloured pseudocubic crystals up to 0.4 mm large are sitting on Hematite. The EDX/XRD of different samples from this location says that there is a mixture between the minerals Svanbergite and Kemmlitzite.
For a example an Analyses from a sample in my collection: Inside the crystal: 42% Al, 16% As, 18% S, 17% Sr, 1% Ca, 7 % Fe. On the crystals faces the Analyses is: 43% Al, 30% P, 12% Sr, 10% S, 1% Ca, 1% Fe, <1% As, <1% La, 1,3 % Ce, < 1% Nd.
 

Mineral Data
What's on the rock

Kemmlitzite

Formula: 
SrAl3(AsO4)(SO4)(OH)6
Strunz: 
8.BL.05
Hardness: 
5.5
Type Locality: 
Kemmlitz, Mügeln, Döbeln, Saxony, Germany

Seller Information

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