• Hardness

  6.5 - 7.0.

• Occurrence

  Worldwide. A member of the chalcedony family (micro-crystalline quartz).

• Appearance

  Translucent violet-blue, sometimes banded like agate.

• Enhancements

  Holly blue chalcedony is not enhanced.

  More information on gemstone enhancements.

• Chalcedony Gemstone Family

  •  Chalcedony
  •  Agate
  •  Aqua Blue Chalcedony
  •  Dark Blue Chalcedony
  •  Bloodstone
  •  Blue Mist Chalcedony
  •  Carribbean Blue Chalcedony
  •  Orange Chalcedony
  •  Chrysoprase
  •  Carnelian
  •  Holly Blue
  •  Jasper
  •  Onyx
  •  Petrified Wood
  •  Sardonyx

Calibrated Gemstones
Calibrated Gemstones by Shape

Specify size, shape and quality when ordering. Prices are subject to change without notice. Actual carat weight may vary from the average carat weight listed.

• A Light to medium powder lavender, translucent to opaque, medium dome..

Holly Blue		Quality	A
Shape	Size	Avg. Weight	Price Each
Cabochon, Round	4mm	0.33	$ 9
	5mm	0.50	$ 16
	6mm	1.00	$ 27
	8mm	2.00	$ 63
Cabochon, Oval	7x5mm	0.75	$ 23
	8x6mm	1.25	$ 38
	9x7mm	1.75	$ 53
	10x8mm	2.40	$ 71
	11x9mm	3.50	$ 106
	12x10mm	4.35	$ 130
Cabochon, Trillion	5mm	0.50	$ 16
	6mm	0.75	$ 27
	8mm	2.00	$ 61
Cabochon, Antique	6mm	1.00	$ 32
	8mm	2.25	$ 69
	9mm	3.00	$ 102

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Last updated April 2, 2012
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