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Gonnardite On Ilmenite & Andesine

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PJM159799

Gonnardite On Ilmenite & Andesine

Description Tabs

Description
Locality: 
Boral Quarry, Bundoora, Whittlesea, Victoria, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.5 × 1.7 cm
Description

A great  miniature with gonnardite spheres, glassy clear phacolite, amd mesolite sprays on cream andesine bladed crystals and bladed ilmenite.

This specimen was collected in the mid 1990's from the Bundoora Quarry in the northern suburbs of Melbourne

Mineral Data
What's on the rock

Gonnardite

Formula: 
(Na,Ca)2(Si,Al)5O10·3H2O
Strunz: 
9.GA.05
Hardness: 
4.0 - 5.0
Type Locality: 
La Chaux de Bergonne, Gignat, Saint-Germain-Lembron, Puy-de-Dôme, Auvergne, France

Ilmenite

Formula: 
Fe2+TiO3
Strunz: 
4.CB.05
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
5.0 - 6.0
Type Locality: 
Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Andesine

Variety Of: 

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Hardness: 
6.0 - 6.5
Formula: 
(Na,Ca)[Al(Si,Al)Si2O8]
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Earthstones Australia

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