Θ³ήf[^x[X
ςΉΏwεw³ηwμγ€Ί
Ξp
ΉΑ±€
(gypsum)
αΤΞpBGypsum var. Alabaster.
CaSO4EH2O.@PΞ»nB
Ynnear Ras Mallaps, Sinai Pen., Egypt.