It is a silicate.
For sure.
silicon and oxygen
yep
SARD
sylicate
Agate
Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. These are both silicate minerals.
nonsilicate
Chalcedony is silicon dioxide.
Ca2SiO4
Chalcedony's Color: Chalcedony can be virtually any color of the rainbow. It is commonly pale blue, yellow, brown or gray with nearly waxlike luster.
Chalcedony is a form of fine-grained quartz which is nearly transparent or has a milky translucence.
Bauxite is nonsilicate because it does not contain a mixture of oxygen and silicon.
Beryl is a sillicate
sillicate
silicon and oxygen
Yes.
carnelian