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Majorite

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SKY888431

Majorite

Rare Mineral

Description Tabs

Description
Locality: 
Peace River Meteorite, Peace River, Alberta, Canada
Class: 
Single Crystal
Size Range: 
Micromount (under 1cm)
Size: 
0.1 × 0.1 × 0.1 cm
Description

Yellow brown single crystals of the extremely rare mineral majorite from a meteorite fall in Canada, named Peace river meteorite:

Fell, 31 March 1963; 45.76 kg

Just over 3 week after a fireball and detonations, fragments of the Peace River meteorite were recovered after much of the snow had melted. The meteorite is particularly interesting because it contains ringwoodite and wadsleyite (two high-pressure polymorphs of olivine) and majorite (a high-pressure polymorph of orthopyroxene).

The meteorite is today classified as an L6 chondrite, a member of the low iron geochemical group of ordinary chondrites. When recovered it was classified as a hypersthene-olivine chondrite utilizing more explicitly mineralogical criteria than is current practice 

Ex Vandenbroucke Museum collection from Waregem, Belgium.

 

Mineral Data
What's on the rock

Majorite

Formula: 
Mg3(Fe2+,Si,Al)2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
7.0 - 7.5
Streak: 
White
Type Locality: 
Coorara meteorite, Rawlinna, Dundas Shire, Western Australia, Australia

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