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Haiweeite Calcite & Fluorite

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RSL549809

Haiweeite Calcite & Fluorite

Radioactive

Description Tabs

Description
Locality: 
Teofilo Otoni, Mucuri Valley, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 0.8 × 0.7 cm
Description

Very aesthetic yellow radiated aggregates of haweeite, some of them included in fluorite and albite. We will send analysis to the buyer.

Mineral Data
What's on the rock

Haiweeite

Formula: 
Ca(UO2)2[Si5O12(OH)2]·6H2O
Strunz: 
9.AK.25
Crystal System: 
Orthorhombic
Hardness: 
3.5
Streak: 
White
Type Locality: 
Unnamed U occurrence [1], Coso District (New Coso District), Coso Mts (Coso Range), Inyo Co., California, USA

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic