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Romanèchite Psm Selenite & Aragonite

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AMP968544

Romanèchite Psm Selenite & Aragonite

Pseudomorph

Description Tabs

Description
Locality: 
Lavrion District Mines, Attiki Prefecture, Greece
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 10.5 × 6 cm
Weight: 
280.00gr
Description

Pseudomorph and cast of dark colored Romanechite PSM after an irregular cluster of Selenite Gypsum crystals, with a secondary crystallization of clear and prismatic, lustrous Aragonite crystals, together with seemingly blasted and broken bits of other pseudomorphs of the same type, glued and amalgamed aesthetically and naturally, re-crystallized, especially visible at the back of the specimen

Mineral Data
What's on the rock

Romanèchite

Formula: 
(Ba,H2O)2Mn5O10
Strunz: 
4.DK.10
Hardness: 
5.0 - 6.0
Type Locality: 
Manganese deposit, Romanèche-Thorens, La Chapelle-de-Guinchay, Saône-et-Loire, Burgundy, France

Selenite

Variety Of: 

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Hardness: 
0.0

Aragonite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.15
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Type Locality: 
Gallo river, Molina de Aragón, Guadalajara, Castile-La Mancha, Spain

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