Hauyne

saf-ahyuh r

Haüyne is an extremely rare mineral and even rarer gemstone. Its bright blue color is common for this stone, but it can be found in white, gray, yellow, green, and pink colors too. Lazurite the sulfur rich variety of haüyne is what gives lapis lazuli its blue color. The best-known specimens have been found in Eifel Mountains of Germany.

Hauyne Polished
Haüyne Classification
Common Name Haüyne
Species Sodalite
Haüyne Optical Properties
Transparency Opaque-Transparent
Dispersion Strength: None
Refractive Index 1.494-1.509
Optic Character NA
Optic Sign NA
Polariscope Reaction Singly Refractive (SR)
Fluorescence SWUV: Inert to weak orange-red
LWUV: Inert to weak reddish orange or purplish pink
CCF Reaction None
Pleochroism None
Haüyne Characteristic Physical Properties
Hardness 5-6
Streak Pale blue to white
Toughness Poor
Luster Greasy, Vitreous
Fracture Conchoidal
Cleavage Perfect
Haüyne Chemistry & Crystallography
Chemical Name sodium calcium aluminum silicate sulfur sulfate chloride
Chemical Formula (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Crystal System Cubic
Chemistry Classification Silicate

Hauyne Colors

  • Pink Hauyne Pink
  • Blue Hauyne Blue
  • White Hauyne White
  • Gray Hauyne Gray
  • Yellow Hauyne Yellow
  • Green Hauyne Green

Alternate Names

Haüynite

Countries of Origin

Canada; Myanmar; Afghanistan; United States of America (the); Russian Federation (the); Ukraine; Italy; Chile; Germany

Care

Normal, gentle handling

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Tim Matthews

Author

Tim Matthews

Tim Matthews is President and Chief Executive Officer of Jewelry Television® (JTV), as well as a member of the company's Board of Directors. He oversees and leads all aspects of the company's powerful omni-digital retail platform that uniquely specializes in fine jewelry and gemstones. His passion for business and gemstones has led him to become a recognized expert in the field of gemology. He is a life member of the Gemmological Association of Great Britain (Gem-A) and has earned Gem-A's highest degrees, the Gemmology (FGA) and Diamond (DGA) diplomas. He is also a Graduate Gemologist (GG) of the Gemological Institute of America (GIA) and has also completed GIA's Graduate Diplomas in Diamonds, Colored Stones and Pearls. Under his leadership, JTV has become the leader in the sourcing and selling of color gemstones and jewelry.

This page was created on June 27, 2014.

This page was last edited on October 24, 2019.