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Cyanotrichite On Allophane

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RPL923815

Cyanotrichite On Allophane

Fluorescent

Description Tabs

Description
Locality: 
New East Wheal Russell, Tavistock, Devon, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.3 × 3 × 1.8 cm
Largest Crystal: 
0.20cm
Weight: 
9.00gr
Description

White spherules of cyanotrichite on pale blue and grey botryoidal masses of allophane. The allophane displays a lime green fluorescence under SW UV.

Mineral Data
What's on the rock

Cyanotrichite

Formula: 
Cu4Al2(SO4)(OH)12·2H2O
Strunz: 
7.DE.10
Crystal System: 
Orthorhombic
Hardness: 
1.0 - 3.0
Type Locality: 
Moldova Nouă (Neumoldowa), Moldova Nouă-Sasca Cu-Mo ore field, Banat Mts, Caraş-Severin Co., Romania

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

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