اکومینیت
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.
In the Vinony graph
Within Vinony's link graph, اکومینیت is referenced by 4 other articles, and connects out to Mohs scale of mineral hardness, water and Latin.
Vinony files it under Aluminium minerals, Fluorine minerals and Minerals described in 1987.
Its subject is documented across 16 Wikipedia language editions.
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
Available in 16 languages
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- فارسی
via Wikidata sitelinks · CC0
Connections
Mohs scale of mineral hardness
Entity
water
Entity
Latin
Entity
Greenland
Concept
aluminium
Entity
fluorine
Entity
strontium
Entity
digital object identifier
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chemical formula
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refractive index
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crystal structure
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bibcode
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hydroxide salt
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transparency
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cryolite
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cleavage
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crystal system
Entity
list of minerals
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crystal twinning
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Semantic Scholar
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