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Melanophlogite & Magnesite

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POL906053

Melanophlogite & Magnesite

Classic Locality

Description Tabs

Description
Locality: 
Fortullino, Rosignano Marittimo, Livorno Province, Tuscany, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 3.1 × 2.2 cm
Description

Very nice specimen of spheroidal clusters of cubic microcrystals of rare Melanophlogite (first recognized natural clathrasil) on Magnesite crystals from classic locality. From old collection.

Mineral Data
What's on the rock

Melanophlogite

Formula: 
46SiO2·6(N2,CO2)·2(CH4,N2)
Strunz: 
4.DA.25
Crystal System: 
Tetragonal
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Giona Mine, Milena, Caltanissetta Province, Sicily, Italy

Magnesite

Formula: 
MgCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Magnisía Prefecture (Magnesia), Thessalia Department (Thessaly), Greece

Seller Information

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