its color produced by copper in the mineral matrix

Pyrite is iron sulfide with a bright metallic cubic crystal structure

and a green aventurine sphere

These earrings set heart-shaped turquoise cabochons in solid

Mohs hardness approximately 5 to 5

Pink Thulite Double Point Sterling Silver Pendant size:1.7"L x 0.3"W x 0.3"T its color produced by copperTwo terminated points in a single settinga lapidary form that puts the crystal's geometry on display. Thulite is a manganese bearing variety of zoisite (Ca2Al3(SiO4)3(OH)), its pink color a direct product of manganese substituting into the crystal lattice in place of calcium. This double terminated point is cut so that both ends taper to a natural looking apex, suspending the stone between two directions at once. Set in solid . 925 sterling silver.