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Hydroxylherderite & Quartz

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SER627616

Hydroxylherderite & Quartz

Description Tabs

Description
Locality: 
Itinga, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 7 × 5.1 cm
Description

A group of white prismatic herderite crystals on a fragment of smoky quartz

Mineral Data
What's on the rock

Hydroxylherderite

Formula: 
CaBe(PO4)(OH,F)
Strunz: 
8.BA.10
Crystal System: 
Monoclinic
Hardness: 
5.0 - 5.5
Streak: 
white

Quartz

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