آلومینیت
Sign in to saveAluminite is a hydrous aluminium sulfate mineral with formula: Al2SO4(OH)4·7H2O. It is an earthy white to gray-white monoclinic mineral which almost never exhibits crystal form. It forms botryoidal to mammillary clay-like masses. It has a very soft Mohs hardness of 1–2 and a specific gravity of 1.66–1.82. thumb|left|An outcrop of aluminite at the top of the white chalk of the cliff at Newhaven, East Sussex, England.
Key facts
- Mineral.name
- Aluminite
- Mineral.category
- Sulfate mineral
- Mineral.image
- Aluminite - Newhaven, Sussex, England.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Aluminite from Newhaven, Sussex, England
- Mineral.formula
- Al2SO4(OH)4·7H2O
- Mineral.IMAsymbol
- A
- Mineral.strunz
- 7.DC.05
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P21/c
- Mineral.unit cell
- a = 7.44, b = 15.583 c = 11.7 [Å]; β = 110.18°; Z = 4
- Mineral.color
- White to grayish white
- Mineral.habit
- Needles and fibrous masses
- Mineral.cleavage
- None
- Mineral.fracture
- Irregular/uneven
- Mineral.tenacity
- Friable
- Mineral.mohs
- 1 - 2
via Wikipedia infobox
Wikidata facts
- Subclass of
- sulfate mineral
- Named after
- aluminium
- Image
- Aluminite - Newhaven, Sussex, England.jpg
Show 9 more facts
- Commons category
- Aluminite
- Nickel-Strunz 9th edition (updated 2009)
- 7.DC.05
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 7.DC.05
- type locality (geology)
- Halle (Saale)
- streak color
- white
- crystal system
- monoclinic crystal system
- IMA Mineral Symbol
- A
- chemical formula
- Al₂SO₄(OH)₄·7H₂O
- Strunz 8th edition (series ID, updated)
- VI/D.03
Sources (1)
via Wikidata · CC0