Hauyne

Sodalite

By Tim Matthews, JD, FGA, GG, DGA,
CEO and President of JTV (retired)
Published: June 2014
Modified: May 2022
Hauyne Polished Hauyne Rough Hauyne Jewelry

Haüyne also called Haüynite is one of the members of the sodalite group. It was named after René Just Haüy a French scientist and crystallographer. Colors range from blue to green but may also be white, yellow, pink, or red. Stones are seldom larger than 1 carat. Faceted material of intense medium to dark blue is highly prized by gemstone collectors.

General Information

Common Name
Hauyne
Species
Sodalite
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
Hardness
5-6
Streak
Pale blue to white
Toughness
Poor
Luster
Greasy, Vitreous
Fracture
Conchoidal
Cleavage
Perfect
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

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

Alternate Names

Haüynite, Hauyne

Countries of Origin

Canada; Myanmar; Afghanistan; Russian Federation; Unknown; United States of America; Ukraine; Italy; Chile; Germany

Care

Normal, gentle handling