Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Tourmaline Molybdenite & Calcite

Views:
Watches:
PCZ803357

Tourmaline Molybdenite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Maria Mine, Cananea, Cananea Municipality, Sonora, Mexico
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 3.6 × 1.2 cm
Description

A very unusual Mexican specimen consisting of calcite crystals with lead grey molybdenite crystals and thin colourless tourmaline crystals many of which have small colourless calcite crystals impaled on them. The original label from Collector's Stope also lists Brookite. 

Mineral Data
What's on the rock

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Molybdenite

Formula: 
MoS2
Strunz: 
2.EA.30
Crystal System: 
Hexagonal
Hardness: 
1.0 - 1.5

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
Peter Crozier Minerals