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Vivianite On Muscovite

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WND777411

Vivianite On Muscovite

Classic Locality

Description Tabs

Description
Locality: 
Jocão Pegmatite, Conselheiro Pena, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 4.8 × 5.7 cm
Largest Crystal: 
3.20cm
Description

You are bidding on a superb specimen of bluish-green, transparent Vivianite, sitting very exposedon a cluster of tabular, Pyrite-coated Muscovite. This is typically for that locality and good Vivianites from there are more rare than from most other places. The Vivianite is high lustrous and the crystals are well defined. With minor backligjht the colour starts to glow as you see on the pictures. A very aesthetic and mostly undamaged specimen and an oldtimer as well.

Mineral Data
What's on the rock

Vivianite

Formula: 
Fe2+3(PO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0
Type Locality: 
Wheal Kind (Wheal Kine), West Wheal Kitty group, St Agnes, St Agnes District, Cornwall, England, UK

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Streak: 
White
Wendel Minerals

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