Labels:crt screen | dialog box | hakham | monitor | sky | stairs | web site | window OCR: Physical properties of Quartz Visible Characteristics: Quartz is also common in massive forms, which contain particles ran nging in size from cryptocrystalline, (grains inv isible to the ncked eye but observable under microscope). to coarse e-grained The luster in some specimens IC vitreous; in others if greasy or splendent {shining glossily} . Some specimens are transparent; others are translucent. In its pure form, Quartz is colorless, but is commonly colored by impurities. 27 commor ranging naked microsc cope coar splenden ishining cimens transpar Juart7 Jrities
