Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Allophane & Gypsum

Views:
Watches:
POL880417

Allophane & Gypsum

Analysed

Description Tabs

Description
Locality: 
Etna Central Crater, Etna, Catania Province, Sicily, Italy
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 3.5 × 3 cm
Description

Histroic specimen of Allophane with Gypsum on lava matrix from Etna Vulcano. Specimen comes from 1982 eruption! Analysed

Ex Mineralien-Niederlage d. Bergakademie Freiberg (Saxony, Germany)

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

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

We want you to be pleased with your purchase. If for any reason you are not completely satisfied, you may exchange or credit your purchase. If a package is lost or damaged, please report the problem immediately.

Any questions or comments please email us at: [email protected]

Thank you for your bidding!