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Pumpellyite-(Mg) In Quartz

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CPM764283

Pumpellyite-(Mg) In Quartz

Description Tabs

Description
Locality: 
Los Alamos Quarry, Fuente Camacho, Granada, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.8 × 1.6 cm
Description

New finding of this mineral in an unusual place. The crystals are included in quartz and are of great beauty. Rare example.

Mineral Data
What's on the rock

Pumpellyite-(Mg)

Formula: 
Ca2MgAl2(Si2O7)(SiO4)(OH)2·H2O
Strunz: 
9.BG.20
Crystal System: 
Monoclinic
Hardness: 
5.5
Streak: 
White
Type Locality: 
Keweenaw Co., Michigan, USA

Quartz

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

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