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Perhamite & Hydroxylherderite

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BCK599938

Perhamite & Hydroxylherderite

Rare Mineral

Description Tabs

Description
Locality: 
Emmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.5 × 1.4 cm
Description

You are bidding on a small sample with several nice hexagonal books of perhamite crystals with tan balls of hydroxylherderite. 

Mineral Data
What's on the rock

Perhamite

Formula: 
Ca3Al7.7Si3P4O23.5(OH)14.1·8H2O
Strunz: 
8.DO.20
Hardness: 
5.0
Streak: 
white
Type Locality: 
Dunton Gem Quarry, Newry, Oxford Co., Maine, USA

Hydroxylherderite

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

Seller Information

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