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Vivianite

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MGR829814

Vivianite

Classic Locality

Description Tabs

Description
Locality: 
Tomokoni Mine, Colavi, Machacamarca, Cornelio Saavedra Province, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.6 × 1.6 cm
Description

This mine has produced what are clearly some of the finest quality Vivianite specimens ever seen. This piece features a group of beautiful, lustrous, gem quality, light blue-green, sword shaped "textbook" crystals of Vivianite sitting atop metamorphosed Sandstone. Typically the crystals from this find were either off matrix, or only hosted a single crystal on matrix, so to find a plethora of crystals on matrix like this is truly rare for this locality. The assemble looks highly aesthetic in various positions. No significant damages to report.

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