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Tourmaline Wardite & Quartz

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MGR1033412

Tourmaline Wardite & Quartz

Rare Mineral

Description Tabs

Description
Locality: 
Pirineus Claim, Monte Belo, Itinga, Minas Gerais, Brazil
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 2.9 × 1.9 cm
Description

Here we have a very cool combination specimen from Brazil. A quartz crystal which has a gemmy tourmaline crystal intergrown which is even well terminated and exhibits a deep green and blue colour variation. The quartz is then completely coated in wardite which is an uncommon hydrated sodium aluminum phosphate. The visual appearence is just incedible beautiful and highly uncommon.

Mineral Data
What's on the rock

Tourmaline

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

Wardite

Formula: 
NaAl3(PO4)2(OH)4·2H2O
Strunz: 
8.DL.10
Hardness: 
5.0
Type Locality: 
Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White