Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Allophane Celsian Hydrozincite & Harmotome

Views:
Watches:
CLB565549

Allophane Celsian Hydrozincite & Harmotome

Classic Locality

Description Tabs

Description
Locality: 
Zlaté Hory, Jeseník, Olomouc Region, Czech Republic
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3 × 2 cm
Description

Pale blue, glossy allophane ('alumogel'?) surrounding acicular, white celsian crystals. With white crusts of micro hydrozincite crystals and some little, waterclear harmotome crystals (not pictured). Very rare.

Mineral Data
What's on the rock

Allophane

Formula: 
(Al2O3)(SiO2)1.3-2·2.5-3H2O
Strunz: 
9.ED.20
Crystal System: 
Amorphous
Hardness: 
3.0
Streak: 
White
Type Locality: 
Gräfenthal, Thuringian Forest, Thuringia, Germany

Celsian

Formula: 
BaAl2Si2O8
Strunz: 
9.FA.30
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Jakobsberg Mine, Nordmark (Nordmarksberg), Filipstad, Värmland, Sweden

Hydrozincite

Formula: 
Zn5(CO3)2(OH)6
Strunz: 
5.BA.15
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Bad Bleiberg, Bleiberg District, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria

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

Seller Information

Payment options: offline, paypal_wpp, paypal_wps