A Quadrillion cut is a square-cut stone. This fancy cut is relatively new
and is also known as a Princess or Squarillion cut.
Quartz is a crystalline mineral that come in many forms, including amethyst,
aventurine, citrin, opal, rock crystal, tiger's eye, rose quartz,and many
others. Rutilated quartz and tourmalinated quartz have needle-like inclusions
of other minerals. Quartz has a hardness of 7.0. This common mineral is
A hard rock made of interlocking quartz crystals formed when sandstone
has been subjected to intense heat and pressure.
Quartz druze is a layer of quartz crystals that form within a mineral
crust, like the inner cavity of a geode. For example, the inner cavity
of agate geodes are often lined with a druze of sparkling quartz crystals.
Quinzite opal is a red to pink type of opal. This opal is also called
Quincite, Quincite Opal, and Rose Opal.