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Eggletonite

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BCK599260

Eggletonite

Type Locality

Description Tabs

Description
Locality: 
Big Rock Quarry, Granite Mountain, Little Rock, Pulaski County, Arkansas, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.3 × 1.9 cm
Description

You are bidding on a small but extremely rich sample of eggletonite. Several vugs host hundreds of orange-red needles of eggletonite with aegirine, kupletskite and britholite-Ce. Very rich piece!

Mineral Data
What's on the rock

Eggletonite

Formula: 
(Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7·11H2O
Strunz: 
9.EG.30
Crystal System: 
Monoclinic
Hardness: 
3.0 - 4.0
Colour: 
Brown
Type Locality: 
Big Rock Quarry (3M Quarry; Arch Street Pike Quarry), Granite Mountain area, Little Rock, Pulaski Co., Arkansas, USA

Seller Information

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