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Ruby & Zoisite

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PDM592060

Ruby & Zoisite

Description Tabs

Description
Locality: 
Mundarara Mine, Longido District, Arusha Region, Tanzania (United Republic)
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11.1 × 8.8 × 1.5 cm
Description

Deep-red, well defined hexagonal crystal of corundum (ruby) up to 6 cm in a matrix of green zoisite, with concentric growing zones. The slice has a cut unpolished side but it is raw at the rear.

Mineral Data
What's on the rock

Ruby

Variety Of: 

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Hardness: 
9.0
Formula: 
Al2O3
Crystal System: 
Hexagonal
Hardness: 
9.0
Colour: 
Red

Zoisite

Formula: 
{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.10
Hardness: 
6.0 - 7.0
Streak: 
White
Type Locality: 
Prickler Halt, Ladinger Spitze - Speikkogel area, Saualpe, Carinthia, Austria

Seller Information

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