• Hardness

  7.0.

• Occurrence

  Worldwide. One of the most common minerals.

• Appearance

  Quartz can be found in a variety of colors, violet (amethyst), golden yellow (citrine), pink or peachish (rose quartz), brown (smoky quartz), green (prasiolite) and colorless (rock crystal). Quartz is sometimes found with inclusions of other minerals such as rutile (sagenite, or rutilated quartz) or tourmaline (tourmalinated quartz), making them look quite remarkable. Chalcedony, a micro-crystalline member of the quartz family consists of a number of stones, namely agate, dendritic agate, fire agate, bloodstone (heliotrope), plasma, chrysoprase, prase, fossilized wood, jasper, carnelian, moss agate, onyx, sardonyx, and sard.

• Enhancements

  Clear quartz is not enhanced. Refer to specific pages on other types.

  More information on gemstone enhancements.

• Amethyst

• Ametrine

• Aventurine

• Bi-Color Quartz

• Chalcedony

• Citrine

• Drusy Quartz

• Gold Included Quartz

• Grey Quartz

• Hawk's Eye

• Lepidachrosite

• Peach Aventurine

• Petersite

• Prasiolite

• Rose De France Amethyst

• Rose Quartz

• Rutilated Quartz

• Smoky Quartz

• Star Quartz

• Tiger's Eye

• Tourmalinated Quartz

• Quartz

  • Item #QUA239
    	5.03 ct.
    	9.0x11.0mm Cabochon, Oval Cut
    	Medium
    	Gray
    	Opaque
    	[N] Not enhanced.
    	Quantity Available: 36
    On one side and medium light on the other with excellent cats eyes. Various dimensions.
    Quartz	$ 249.99

  • Item #QUA793
    	8.66 ct.
    	15.0mm Cabochon, Heart Cut
    	White
    	Slightly Translucent
    	[N] Not enhanced.
    	Quantity Available: 2
    Pendant with chain
    Quartz	$ 9.99

  • Item #QUA794
    	16.73 ct.
    	20.0mm Cabochon, Heart Cut
    	White
    	Slightly Translucent
    	[N] Not enhanced.
    	Quantity Available: 2
    Pendant with sterlin silver chain
    Quartz	$ 12.99

  • Item #QUA795
    	6.26 ct.
    	25.0x5.0mm Crystal Point
    	Colorless
    	Translucent
    	[N] Not enhanced.
    	Quantity Available: 33
    Quartz	$ 9.99

  • Item #QUA389
    	53.45 ct.
    	34.6x22.7mm Carved Whale
    	Colorless
    	Moderately Included
    	[N] Not enhanced.
    	one of a kind
    Quartz	$ 24.99

  • Item #QUA390
    	82.01 ct.
    	42.8x25.5mm Carved Whale
    	Colorless
    	Slightly Included
    	[N] Not enhanced.
    	one of a kind
    Quartz	$ 29.99

  • Item #QUA367
    	213.00 ct.
    	53.0x28.0mm Carved Swan
    	Colorless
    	Heavily Included
    	[N] Not enhanced.
    	one of a kind
    With black inclusions
    Quartz	$ 29.99

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Last updated December 7, 2007
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