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Foggite & Goyazite

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BCK714846

Foggite & Goyazite

Robert Whitmore collection
Type Locality

Description Tabs

Description
Locality: 
Palermo 1 Mine, Grafton County, New Hampshire, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.8 × 3.3 cm
Description

You are bidding on a simply fantastic sample of foggite from the Robert Whitmore collection. The matrix hosts dozens of clusters of square-tabular plates of foggite with a very large cluster in the main cavity. There are also lost of hexagonal plates of goyazite. Very rich and excpetional example of this mineral from the type locality. From the Robert Whitmore collection of Palermo minerals. 

Mineral Data
What's on the rock

Foggite

Formula: 
CaAl(PO4)(OH)2·H2O
Strunz: 
8.DL.05
Hardness: 
0.0
Type Locality: 
Palermo No. 1 Mine (Palermo No. 1 pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USA

Goyazite

Formula: 
SrAl3(PO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Hexagonal
Hardness: 
4.5 - 5.0
Type Locality: 
Diamantina, Jequitinhonha valley, Minas Gerais, Brazil

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