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Augite & Pigeonite

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CLB127463

Augite & Pigeonite

Description Tabs

Description
Locality: 
Cedar Butte, Tillamook County, Oregon, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.8 × 2.2 cm
Description

Augite crystals with pigeonite from the not yet well explored locality in Oregon.

Mineral Data
What's on the rock

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Pigeonite

Formula: 
(Mg,Fe2+,Ca)(Mg,Fe2+)Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.10
Hardness: 
6.0
Type Locality: 
Pigeon Point, Cook Co., Minnesota, USA

Seller Information

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