Chalcedony is a form of fine-grained quartz which is nearly transparent or has a milky translucence.
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 cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. These are both silicate minerals.
Chalcedony
sard see www.cst.cmich.edu/users/dietr1rv/chalcedony.htm
Carnelian is a reddish form of quartz chalcedony that is somewhat translucent.
Chalcedony is silicon dioxide.
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.
Yes.
carnelian
carnelian
Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. These are both silicate minerals.
Yes there is. The one who made this question has the name Chalcedony. It comes from the bible and it is a gem. There are 12 gems.
SARD
It is a silicate. For sure.
sylicate
The same
SARD