Cleavelandite In Quartz Classification
Cleavelandite In Quartz
Colorless With Inclusions That Are White To Gray, Bluish, Greenish, Reddish
Refractive index, appearance, birefringence, optic character and optic figure. A bull's-eye optic figure is determinative for quartz; may also show Airy's spiral optic figure and Brazil-law twinning under crossed polarizing filters.