Quartz
APPLICATIONS:
Silica for glass, electrical components, optical lenses, abrasives, gemstones, ornamental stone, building stone, etc.
ASSOCIATED MINERALS:
Microcline, tourmalines, wolframite, pyrite, rutile, zeolites, fluorite, calcite, gold, muscovite, topaz, beryl, hematite, spodumene.
ASTROLOGICAL SIGNS:
All.
CHEMICAL STRUCTURE:
SiO2, Silicon dioxide.
CLASS:
CLEAVAGE:
Not present.
COLOR:
variable as the spectrum, but clear quartz is by far the most common color followed by white or...