Selenite, satin spar, desert rose, and gypsum flower are four varieties of the mineral gypsum; all four varieties show obvious crystalline structure. The four "crystalline" varieties of gypsum are sometimes grouped together and called selenite.
Selenite is a great tool in crystal box and is also a lovely crystal to have around in your home.
These palm stones are excess stock and are both 7cm x 5cm x 2cm in size.
Crystal system: Monoclinic (2/m) Space Group: A2/a
Crystal habit: Earthy – Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)
Optical properties: Biaxial (-) 2V=58
Mohs scale hardness: 2
Formula (repeating unit): CaSO4·2H2O
Formula mass: 172.17
Colour: Brown green, Brownish yellow, Greenish, Gray green, Gray white
