9.407páginas en
el wiki
Crear una página
Discusión0 Compartir
Category Mineral Series
Chemical formula Ca3Al2(SiO4)3-x(OH)4x
Color green to bluish green, pink, white, gray [1]
Crystal habit massive
Crystal system cubic [1]
Cleavage none
Fracture conchoidal [1]
Mohs scale hardness 7 - 7.5 [1]
Luster vitreous
Specific gravity 4.15 (+.05, -.03)[1]
Polish luster vitreous to subadamantine [1]
Optical properties Single refractive, anomalous aggregate reaction [1]
Refractive index 1.810 (+.004, -.020)
Birefringence none
Pleochroism none
Ultraviolet fluorescence inert [1]
Absorption spectra dark green hydrogrossular often shows cutoff below 460nm. Other color stones may show line around 463nm, indicating some idocrase content[1]

Hydrogrossular, is a calcium aluminium garnet series between the species Grossular and Hibschite Ca3Al2(SiO4)3-x(OH)4x, with hydroxide (OH) partially replacing silica (SiO4).[1] Hydrogrossular is found in massive crystal habit, sometimes grown in with idocrase. [1]

Hydrogrossular is translucent to opaque, and found in green to bluish green, pink, white, and gray.[1] The cause of the green color is chromium, and possibly iron.[1] Pink hydrogrossular is caused by the presence of manganese.[1] Hydrogrossular may have dark gray to black small inclusions. [1]It has similarites to jade, and has the misnomers transvaal jade, and african jade.[1]

Hydrogrossular is sometimes used as a gemstone, being cabochon cut, or made into beads. Sources for green and pink hydrogrossular are South Africa, Canada, and the US. White hydrogrossular is sourced from Burma and China.[1]

External linksEditar


  1. 1,00 1,01 1,02 1,03 1,04 1,05 1,06 1,07 1,08 1,09 1,10 1,11 1,12 1,13 1,14 1,15 1,16 Gemological Institute of America, GIA Gem Reference Guide 1995, ISBN 0-87311-019-6

¡Interferencia de bloqueo de anuncios detectada!

Wikia es un sitio libre de uso que hace dinero de la publicidad. Contamos con una experiencia modificada para los visitantes que utilizan el bloqueo de anuncios

Wikia no es accesible si se han hecho aún más modificaciones. Si se quita el bloqueador de anuncios personalizado, la página cargará como se esperaba.

También en Fandom

Wiki al azar