Hayne is a highly sought-after gem due to its rarity and incredible, electrifying color. Its mesmerizing blue hues are unforgettable and as rich as those seen in the most prized sapphires and Pariaba tourmalines. Hayne is an extremely rare mineral and even rarer gemstone. Also called haynite, it was named in honor of 18th century French scientist and crystallography pioneer Ren-Just Hay, who many consider one of the fathers of modern gemology. Its first mention was in 1807 when crystals were discovered among volcanic lavas in Italy. It is known for its electric blue color, but can also be found in white, gray, yellow, green and pink colors.

Haϋyne is one of the major constituents of lapis lazuli, a well-known and ancient gem material. It is, however, rarely seen as a distinct gem species. It is cut for collectors mainly as a curiosity, but faceted gems that are deep blue in color are extremely beautiful. Blue is the most sought after color in this material.

NameHaϋyne VarietiesLazurite, Lapis Lazuli Crystallography Isometric. Crystals dodecahedral or octahedral; usually rounded grains. Colors Blue; also white, shades of gray, green, yellow, and red. Translucent to semitransparent. Luster Vitreous to greasy. Hardness 5.5-6 Density 2.40-2.50. (Eifel = 2.40.) Cleavage Distinct 1 direction. Fracture conchoidal to uneven. Brittle. Stone SizesOpaque material is cut into cabochons up to an inch or two, but faceted gems are exceedingly rare and always small (under 1-2 carats), chiefly from the Eifel region of West Germany. LuminescenceUsually none; sometimes orange-red in LW (Germany). Spectral Not diagnostic. Formula(Na,Ca)4-8(AI6Si6)O24(SO4S )1 -2.