Color is usually colorless, pale yellow, lemon-yellow, orange and pale green. Luster is vitreous to dull. Diaphaneity is transparent to translucent.
Fracture is uneven.
Hardness is 4.5. Streak is white. Associated Minerals include dolomite, hematite, microcline, molybdenite, pyrite, pyroxene group, quartz, rutile and siderite.