普通輝石
Sign in to saveAugite, also known as Augurite, is a common rock-forming pyroxene mineral with formula . The crystals are monoclinic and prismatic. Augite has two prominent cleavages, meeting at angles near 90 degrees.
Key facts
- Mineral.name
- Augite
- Mineral.category
- Inosilicate minerals (single chain)
- Mineral.group
- Pyroxene group, clinopyroxene subgroup
- Mineral.image
- Augite Rwanda.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Augite – Muhavura volcano
- Mineral.IMAsymbol
- Aug
- Mineral.strunz
- 9.DA.15
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- C2/c
- Mineral.unit cell
- a = 9.699, b = 8.844 c = 5.272 [Å] β = 106.97°; Z = 4
- Mineral.color
- Black, brown, greenish, violet-brown; in thin section, colorless to gray with zoning common
- Mineral.habit
- Commonly as stubby prismatic crystals, also acicular, skeletal, dendritic
- Mineral.twinning
- Simple or multiple on {100} and {001}
- Mineral.cleavage
- {110} good with 87° between {110} and {10}; parting on {100} and {010}
- Mineral.fracture
- uneven to conchoidal
- Mineral.tenacity
- brittle
via Wikipedia infobox
Wikidata facts
Show 7 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 9.DA.15
- Commons category
- Augite
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.DA.15
- crystal system
- monoclinic crystal system
- IMA Mineral Symbol
- Aug
- chemical formula
- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)₂O
- Strunz 8th edition (series ID, updated)
- VIII/D.01d
Sources (3)
via Wikidata · CC0
Article · 日本語
普通輝石（ふつうきせき、augite、オージャイト）は、鉱物の一種（ケイ酸塩鉱物）。カルシウムを含む単斜輝石。 化学組成は (Ca,Mg,Fe)2Si2O6 で、カルシウムの割合が小さくなるとピジョン輝石になる。 火成岩や変成岩に広く産する造岩鉱物。短柱状の結晶。
Abstract from DBpedia / Wikipedia · CC BY-SA