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Kutnohorite On Aragonite

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MII137961

Kutnohorite On Aragonite

Fluorescent

Description Tabs

Description
Locality: 
Levane, Bucine, Arezzo Province, Tuscany, Italy
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 4 × 2.2 cm
Description

Kutnahorite of dark brown color, spheroids of acicular aragonite within this geode. Unusual location, nice specimen!

Mineral Data
What's on the rock

Kutnohorite

Formula: 
Ca(Mn,Mg,Fe)(CO3)2
Strunz: 
5.AB.10
Hardness: 
3.5 - 4.0
Type Locality: 
Poličany, Kutná Hora (Kuttenberg), Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic

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
MineralsIsland

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