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Pumpellyite-(Mg)

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RGR180471

Pumpellyite-(Mg)

Description Tabs

Description
Locality: 
Obří důl, Krkonoše Mountains, Hradec Králové Region, Czech Republic
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 6 × 5 cm
Description

One of the best specimen of pumpellyite what you can see is from Czech classic locality Obrí dul (Riesental). Very good aesthetics specimen with rich pumpellyite on quartz. Specimen has good centre position, deep green colour and perfect definition crystals spray. Specimen is classic combination from locality – green pumpellyite with white albite overgrowth quartz (Rock Crystal). Very good condition.

Mineral Data
What's on the rock

Pumpellyite-(Mg)

Formula: 
Ca2MgAl2(Si2O7)(SiO4)(OH)2·H2O
Strunz: 
9.BG.20
Crystal System: 
Monoclinic
Hardness: 
5.5
Streak: 
White
Type Locality: 
Keweenaw Co., Michigan, USA