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Rectorite

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ESM545662

Rectorite

Description Tabs

Description
Locality: 
Jeffrey Quarry, Little Rock, Pulaski County, Arkansas, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.4 × 5.7 × 4.4 cm
Description

Yellow-brown "mountain leather" on quartz crystals

Mineral Data
What's on the rock

Rectorite

Formula: 
(Na,Ca)Al4((Si,Al)8O20)(OH)4·2H2O
Strunz: 
9.EC.60
Hardness: 
1.0 - 2.0
Type Locality: 
Blue Mountain District, Marble Township, Garland Co., Arkansas, USA