adelite
Sign in to saveAlso known as CaMgAsO4OH
The rare mineral adelite, is a calcium, magnesium, arsenate with chemical formula CaMgAsO4OH. It forms a solid solution series with the vanadium-bearing mineral gottlobite. Various transition metals substitute for magnesium and lead replaces calcium leading to a variety of similar minerals in the adelite–duftite group.
Key facts
- Mineral.name
- Adelite
- Mineral.category
- Adelite-descloizite group
- Mineral.image
- Adelite.jpg
- Mineral.caption
- Pinkish crystal aggregates of adelite from the Franklin deposit in Ogdensburg, New Jersey
- Mineral.formula
- CaMg(AsO4)(OH)
- Mineral.IMAsymbol
- Ade
- Mineral.strunz
- 8.BH.35
- Mineral.dana
- 41.5.1.1
- Mineral.system
- Orthorhombic
- Mineral.class
- 2 2 2 – Disphenoidal
- Mineral.symmetry
- P212121
- Mineral.color
- Colourless, white, grey, bluish grey, yellowish grey, yellow, pale green, pinkish brown, brown
- Mineral.habit
- Elongate crystals, massive
- Mineral.cleavage
- None observed
- Mineral.luster
- Vitreous, greasy
- Mineral.diaphaneity
- Transparent, translucent
- Mineral.mohs
- 5
- Mineral.gravity
- 3.73 to 3.79
via Wikipedia infobox
~1 min read
Encyclopedic overview
4 sectionsContents
- Geologic occurrence
- See also
- References
- Bibliography
The rare mineral adelite, is a calcium, magnesium, arsenate with chemical formula CaMgAsO4OH. It forms a solid solution series with the vanadium-bearing mineral gottlobite. Various transition metals substitute for magnesium and lead replaces calcium leading to a variety of similar minerals in the adelite–duftite group.
Adelite forms variably colored (blue, green, yellow and grey) crystals in the orthorhombic crystal system. The form is typically massive. It has a Mohs hardness rating of 5 and a specific gravity of 3.73 to 3.79.
Excerpted from Wikipedia’s “adelite” article, available under the CC BY-SA 4.0 licence.