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About Chalcedony

Chalcedony is a radial aggregate of microscopic quartz fibres, mostly grey to whitish-grey (various occurrences), rarer bluish to blue (Namibia).

Facts:

  • Mohs hardness: 6.5
  • Mineral: Quartz
  • Chemistry: SiO2
Chalcedony is a radial aggregate of microscopic quartz fibres, mostly grey to whitish-grey (various occurrences), rarer bluish to blue (Namibia). Facts: Mohs hardness: 6.5... read more »
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About Chalcedony

Chalcedony is a radial aggregate of microscopic quartz fibres, mostly grey to whitish-grey (various occurrences), rarer bluish to blue (Namibia).

Facts:

  • Mohs hardness: 6.5
  • Mineral: Quartz
  • Chemistry: SiO2
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030753_Chalcedon_natur Natural chalcedony, medium blue, donut, round,...
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036655_Chalcedon Natural chalcedony, light blue, donut, oval,...
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036676_Chalcedon Natural chalcedony, light blue, donut, oval,...
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036219_Chalcedon_14x11mm Chalcedony, pink, olive shape, faceted, 14x11 mm
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036230_Chalcedon_12x9mm Chalcedony, apple green, olive shape, faceted,...
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036220_Chalcedon_14x11mm Chalcedony, apple green, olive shape, faceted,...
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036221_Chalcedon_14x11mm Chalcedony, aqua blue, olive shape, faceted,...
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036231_Chalcedon_12x9mm Chalcedony, aqua blue, olive shape, faceted,...
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036229_Chalcedon_12x9mm Chalcedony, pink, olive shape, faceted, 12x9 mm
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036034_Chalcedon_10.5x7mm Chalcedony nature,double face cut, oval,...
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036030_Chalcedon_11.7x8mm Chalcedony nature, double face cut, oval,...
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S033858_Chalcedon_17x17mm Chalcedony nature, (Namibia), cabochon,...
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