Quartz is a chemical compound consisting
of one part silicon and two parts oxygen. It is silicon dioxide
(SiO2). It is the most abundant mineral found at Earth's
surface, and its unique properties make it one of the most useful
natural substances. Rock crystal quartz: Transparent "rock
crystal" quartz ,
Quartz is a chemical compound consisting of one part silicon
and two parts oxygen. It is silicon dioxide (SiO2). It
is the most abundant mineral found at Earth's surface, and its
unique properties make it one of the most useful natural
substances. Rock crystal quartz: Transparent "rock crystal"
quartz.
Quartz is a chemical compound consisting of one part silicon
and two parts oxygen. It is silicon dioxide (SiO2). It
is the most abundant mineral found at Earth's surface, and its
unique properties make it one of the most useful natural
substances. Rock crystal quartz: Transparent "rock crystal"
quartz
