[化] 光卤石

[医] 光卤石(矿), 砂金卤石(钾与镁的氯化物)

[ noun ]
a white or reddish mineral consisting of hydrous chlorides of potassium and magnesium; used as a fertilizer and as a source of potassium and magnesium
<noun.substance>

Carnallite \Car"nal*lite\, n. [G. carnallit, fr. Von Carnall, a
Prussian.] (Min.)
A hydrous chloride of potassium and magnesium, sometimes
found associated with deposits of rock salt.