Majorite

n. mineral that exists deep inside a planetary body and is often found in meteorites

Majorite is a type of mineral found in the upper mantle of the Earth. Its chemical formula is Mg3(Fe,Al,Si)2(SiO4)3. Majorite was first described from the Coorara Meterorite of Western Australia and has been reprted from various other meteorites. Mantle derived xenoliths containing majorite have been reported from potassic ultramafic magmas on Malaita Island on the Ontong Java Plateau Southwest Pacific.
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n. majority, greater part or number, number greater than half of the total; number of votes which amounts to more than half the votes cast; military rank or position of major

General Information:
 Chemical Formula:
Mg3(Fe,Al,Si)2(SiO4)3
 Composition:
(Molecular Weight = 437.99 gm)
Magnesium 16.65 % Mg
Aluminum 3.70 % Al
Iron 15.30 % Fe
Silicon 20.52 % Si
Oxygen 43.84 % O 
 Empirical Formula:
Mg3Fe3+1.2Al0.6Si0.2(SiO4)3
 IMA Status:
Approved IMA 1970
Physical Properties:
 Cleavage:
None
 Color:
yellow brown or purple red.
 Density:
4
 Diaphaniety:
Transparent to Translucent
 Hardness:
7-7.5
 Luster:
Vitreous (Glassy)
 Streak:
white
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