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Rhodochrosite & Tourmaline

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PDM661193

Rhodochrosite & Tourmaline

Description Tabs

Description
Locality: 
Pederneira Mine, São José da Safira, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.6 × 2.1 cm
Largest Crystal: 
3.30cm
Description

This is a really uncommon piece of rhodochrosite with tourmaline from Brazil. This specimen consists of a floater group of flattened rhombohedral rhodochrosite crystals of intense pinkish-red colour in association with greyish-blue tourmaline. Rhodochrosite from pegmatite localities are extremely rare, and rhodochrosite in association with tourmaline is extremely rare.

I’m told that these specimens were a single limited find at the pederneira mine at the early 1990’s. With a previous label from a known US dealer. Ex. A. Gelders, #078.

Mineral Data
What's on the rock

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

Tourmaline

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

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