Glossary of antique and collectable terms There are 856 entries in this glossary.
| Term | Definition |
|---|---|
| Quadrant |
A metal pivot allowing a desk flap to move through a quarter of a circle only |
| 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
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| Quartz |
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 is a common mineral found worldwide. Quartz has a hardness of 7.0.
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| 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. |
| Queen Anne |
A term used here to describe furniture styles of the early 1700's. Queen Anne reigned between 1702 and 1714, the style continued until the 1720's |
| 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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