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Quadrillion Cut
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 found worldwide.

A hard rock made of interlocking quartz crystals formed when sandstone has been subjected to intense heat and pressure.

Quartz Druze
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
Quinzite opal is a red to pink type of opal. This opal is also called Quincite, Quincite Opal, and Rose Opal.

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