Olivine

(Mg,Fe)2SiO4

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Olivine is a group of silicate minerals common in Earth's mantle and in mafic and ultramafic igneous rocks. The gem variety is called peridot. Olivine is one of the first minerals to crystallize from a cooling basaltic magma.

결정계 Orthorhombic
광물 분류 09 Silicates
모스 경도 6.5-7.0
비중 3.22-4.39
색상 Green, yellow-green, olive green
광택 Vitreous
조흔색 Colorless
벽개 Poor
단구 Conchoidal
투명도 Transparent
결정 습성 Granular, prismatic

모스 경도

Mohs Hardness: 6.5 – 7.0
1 Soft10 Hard

결정계

Orthorhombic

Explore on Science FYI

ChemFYI
Magnesium (Mg) Forsterite end-member (Mg₂SiO₄)
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Iron (Fe) Fayalite end-member (Fe₂SiO₄)
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Silicon (Si) Nesosilicate framework
GemFYI
Peridot Gem-quality forsterite olivine

Frequently Asked Questions

What is the hardness of Olivine?
Olivine has a Mohs hardness of 6.5-7.0.
What crystal system does Olivine belong to?
Olivine crystallizes in the Orthorhombic crystal system.
What color is Olivine?
Olivine is typically Green, yellow-green, olive green.
What type of luster does Olivine have?
Olivine exhibits a Vitreous luster.
What is the chemical formula of Olivine?
The chemical formula of Olivine is (Mg,Fe)2SiO4.