Olivine
Minerals

Olivine

Olivine (Forsterite-Fayalite Series) is a common minerals from mafic-ultra mafic rocks.
Formula: M2SiO4  (M: Ca, Fe, Mn, Ni, Mg)

Colour: Yellow to yellow-green, Olive green, Reddish brown
Hardness: 6.5-7
Specific Gravity: 3.27 - 3.37
Crystal System: Orthorombic



Physical Properties
Luster:Vitreous

Transparency:Transparent, Translucent
Streak:Colorless to White
Tenacity:Brittle
Cleavage:Poor


Locality from ٖMuseum Sample
Afghanistan
Application
Olivine minerals are used in industry as abrasives and as refractory sand in steel manufacturing. 



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Ammonite
Paleontology

Ammonite

Hemimorphite
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Hemimorphite