فورستریت
Sign in to saveForsterite (Mg2SiO4; commonly abbreviated as Fo; also known as white olivine) is the magnesium-rich end-member of the olivine solid solution series. It is isomorphous with the iron-rich end-member, fayalite. Forsterite crystallizes in the orthorhombic system (space group Pbnm) with cell parameters a 4.75 Å (0.475 nm), b 10.20 Å (1.020 nm) and c 5.98 Å (0.598 nm).
Key facts
- Mineral.fracture
- Conchoidal
- Mineral.mohs
- 7
- Mineral.name
- Forsterite
- Mineral.category
- Nesosilicates
- Mineral.image
- Forsterite on Sanidine - Ochtendung, Eifel, Germany.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Forsterite (big tabular and colorless) on sanidine (little colorless crystals)with hematite (reddish)
- Mineral.formula
- Magnesium silicate (Mg2SiO4)
- Mineral.IMAsymbol
- Fo
- Mineral.strunz
- 9.AC.05
- Mineral.system
- Orthorhombic
- Mineral.class
- Dipyramidal (mmm) H-M Symbol: (2/m 2/m 2/m)
- Mineral.symmetry
- Pbnm
- Mineral.unit cell
- a = 4.7540 Å, b = 10.1971 Å c = 5.9806 Å; Z = 4
- Mineral.color
- Colorless, green, yellow, yellow green, white
- Mineral.habit
- Dipyramidal prisms often tabular, commonly granular or compact massive
- Mineral.twinning
- On {100}, {011} and {012}
- Mineral.cleavage
- Perfect on {010} imperfect on {100}
via Wikipedia infobox
Wikidata facts
- Image
- Forsterite on Sanidine - Ochtendung, Eifel, Germany.jpg
Show 11 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 9.AC.05
- Commons category
- Forsterite
- chemical formula
- Mg₂SiO₄
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.AC.05
- type locality (geology)
- Mount Somma
- crystal system
- orthorhombic crystal system
- solid solution series with
- tephroite
- streak color
- white
- Mohs' hardness
- 7
- IMA Mineral Symbol
- Fo
- Strunz 8th edition (series ID, updated)
- VIII/A.03
via Wikidata · CC0