S1Y4L1V4I1T1E1S1
14 points
SYLVITES is validvalid
SYLVITE, an ore of potassium
SYLVITE, a native potassium chloride, a source of potash, also SYLVIN, SYLVINE
SYLVITE, an ore of potassium
SYLVITE, a native potassium chloride, a source of potash, also SYLVIN, SYLVINE