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Home / Gem Library / Gemstones Varieties / Hibonite August 09, 2020

Natural Hibonite

Hibonite is a very rare brownish black mineral with a hardness of 7.5-8.0. It is a hexagonal mineral that is known to occur in meteorites but is more often associated with metamorphic calcareous rocks and sometimes with corundum, spinel and/or sapphirine.

  • There are 2 Hibonite gemstones available at
  • Hibonite(s) are organized in the following categories: Single,  gemstones.

Hibonite Profile

Color information: Brown
Refractive Index: 1.791.81
Chemical Composition: (Ca,Ce)(Al)12O19
Hardness: 7.5 - 8
Density: 3.84
Crystal Group: Hexagonal
Ocurrence: Madagascar, Myanmar, Tanzania, Kenya
Sign of the Zodiac: N/A
Month of the year: N/A
Hibonite Hibonite
Hibonite can be identified by its gemological properties (RI = 1.791.81, SG = 3.84, and no UV fluorescence).

Hibonite is named after Paul Hibon, the French prospector who discovered it. The locality source in Myanmar has not been disclosed and stones have only been available for the last 10 years.

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Hibonite range/
Hibonite Single
Hibonite Single Fancy Moderately included
Size: 4.20 X 4.30 MM
Weight: 0.270 CTS
Shape: Fancy
Clarity: Moderately included
Usually ships within 24 hours
USD 332.64
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Hibonite Single
Hibonite Single Fancy Moderately to Heavily included
Size: 4.70 X 4.00 MM
Weight: 0.220 CTS
Shape: Fancy
Clarity: Moderately to Heavily included
Usually ships within 24 hours
USD 271.04
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