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Schoonerite & Phosphophyllite

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BCK840056

Schoonerite & Phosphophyllite

Rare Mineral

Description Tabs

Description
Locality: 
Big Chief Mine, Keystone, Glendale, Pennington County, South Dakota, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 2.9 × 2.4 cm
Description

You are bidding on a small miniature sample with rich sprays of schoonerite group blades (not analyzed in modern times, could be schmidite or another member of the group) with rockbridgeite, jahnsite and a few minor clusters of phosphophyllite. 

Mineral Data
What's on the rock

Schoonerite

Formula: 
ZnMn2+Fe2+2Fe3+(PO4)3(OH)2·9H2O
Strunz: 
8.DB.15
Hardness: 
4.0
Type Locality: 
Palermo No. 1 Mine (Palermo No. 1 pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USA

Phosphophyllite

Formula: 
Zn2Fe(PO4)2·4H2O
Strunz: 
8.CA.40
Crystal System: 
Monoclinic Prismatic crystals, often twinned
Hardness: 
3.0 - 3.5
Type Locality: 
Hagendorf North Pegmatite (Meixner Feldspar Pit), Hagendorf, Waidhaus, Upper Palatinate, Bavaria, Germany

Seller Information

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