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Eosphorite With Zanazziite On Quartz

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QRI930595

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Description
Locality: 
Lavra de Ilha, Taquaral, Itinga, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11.2 × 6.9 × 5.8 cm
Weight: 
322.00gr
Description

Significant cabinet specimen consisting of hundreds of elongated eosphorite crystals populating a large portion of a quartz crystal . Eosphorite crystals are brown, lustrous and with transparent terminations, often displaying a darker core along the c axis. Among them, some rare green millimetric zanazziite spheroids.

One of the largest, richest specimens of the specie I have ever come across. In excellent conditions. 
It is dated back to the 70s, a prolific time for these specimens on the market. Also, Ilha pegmatite is the type locality of zanazziite.

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Mineral Data
What's on the rock

Eosphorite

Formula: 
(Mn2+,Fe2+)Al(PO4)(OH)2·H2O
Strunz: 
8.DD.20
Crystal System: 
Orthorhombic
Hardness: 
5.0
Streak: 
White
Type Locality: 
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA

Zanazziite

Formula: 
Ca2Mg5Be4(PO4)6(OH)4·6H2O
Strunz: 
8.DA.10
Crystal System: 
Monoclinic
Hardness: 
5.0
Streak: 
White
Type Locality: 
Ilha claim, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Brazil

Quartz

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

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