Acuminiet
Sign in to saveAlso known as IMA1986-038
Acuminite is a rare halide mineral with chemical formula: SrAlF4(OH)·(H2O). Its name comes from the Latin word acumen, meaning "spear point". Its Mohs scale rating is 3.5.
Key facts
- Mineral.name
- Acuminite
- Mineral.category
- Halide mineral
- Mineral.formula
- SrAlF4OH·(H2O)
- Mineral.IMAsymbol
- Acu
- Mineral.strunz
- 3.CC.10
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- C2/c
- Mineral.unit cell
- a = 13.223, b = 5.175 c = 14.251 [Å]; β = 11.61°; Z = 8
- Mineral.color
- White
- Mineral.habit
- Clusters of acute dipyramidal Spearhead shaped crystals
- Mineral.twinning
- Contact on {100}
- Mineral.cleavage
- Perfect on {001}
- Mineral.luster
- Vitreous
- Mineral.diaphaneity
- Transparent
- Mineral.mohs
- 3.5
- Mineral.gravity
- 3.295
- Mineral.opticalprop
- Biaxial (+)
via Wikipedia infobox
Wikidata facts
- Image
- Acuminite crystal structure (Krogh, Ploug-Sorensen, Leonardsen 1991) along a axis.png
Show 6 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 3.CC.10
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 3.CC.10
- crystal system
- monoclinic crystal system
- IMA Mineral Symbol
- Acu
- chemical formula
- SrAlF₄(OH)·H₂O
- Commons category
- Acuminite
Sources (1)
via Wikidata · CC0
Article · Nederlands
Acuminiet met de chemische formule Sr[AlF4(OH)(H2O)] is een mineraal dat bestaat uit strontium, aluminium, fluor, zuurstof en waterstof. De naam is afgeleid van het Latijnse woord acumen, wat betekent "speerpunt". De hardheid op de schaal van Mohs is 4 tot 5.
Abstract from DBpedia / Wikipedia · CC BY-SA
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