Quartz is used in timepieces such as watches or clocks.
technically, quartz is not a rock. it is a mineral. quartz can be found in any type of rock
Found mostly in quartz. To extract it grind up the quartz the stick it on a plate. Put the plate in water the gently shake it so that the pieces of quartz fall off the all that's left is gold.
Epoxy will work for any kind of stone.
Quartz is a mineral composed of silicon and oxygen, SiO2.
Rose quartz is found in Madagascar, India, Germany, and several localities in the USA, most notably in South Dakota. Currently, a lot of rose quartz has been excavated in Brazil, where the only current source of true, well-formed crystals of rose quartz can be found. Rose quartz can be found in cores of pegmatites.
researchers in china have uncovered what might be the oldest playable musical instrument;;called the stone age flute.flute,China
Quartz
Quartz
Agate :D
The Clairenet is a woodwind instrument.
this is a kind of metal instrument
quartz