bowteider
Garnet
Isometric Nesosilicate
common shapes include dodecahedron and trapezohedron
composition varies, as there are two different solid solutions for this mineral group.
the two solid solution groups are Pyrolspar and Ugranoite.
Pyrospars have Al in the little cation site, and the big cation varies. includes Pyrope, Almindene, and Spercetine. There respective cations are Mg, Fe and Mn.
Ugranoites have Ca in the big cation site, and the little cation varies. include Uvarovite, Grossular, and Andradite. Respective cations are Cr, Al, and (Fe, Ti).
Luster vitreous, H=6.5-7.5
streak is white.
Garnet
Isometric Nesosilicate
common shapes include dodecahedron and trapezohedron
composition varies, as there are two different solid solutions for this mineral group.
the two solid solution groups are Pyrolspar and Ugranoite.
Pyrospars have Al in the little cation site, and the big cation varies. includes Pyrope, Almindene, and Spercetine. There respective cations are Mg, Fe and Mn.
Ugranoites have Ca in the big cation site, and the little cation varies. include Uvarovite, Grossular, and Andradite. Respective cations are Cr, Al, and (Fe, Ti).
Luster vitreous, H=6.5-7.5
streak is white.