Sphalerite 925 Silver Pendant from Spain - 0.6" - 5.80 Grams minerals This is a beautiful red

This is a beautiful red Tourmaline cut stone from Brazil

The stone also appears as "tiger's-eye" in GIA course materials

Natural rich purple Amethyst 10mm round Beads Dangle Shepherd Hook Earrings from Brazil

A very cool Huebnerite (variety of Wolframite) sitting on Quartz matrix from Peru

The stone is dark green in color

Sphalerite 925 Silver Pendant from Spain - 0.6" - 5.80 Grams minerals This is a beautiful redVery rare rough natural translucent yellowish to honey brown Sphalerite 925 silver pendant from Spain. Sphalerite is a zinc sulfide mineral with a chemical composition of (Zn,Fe)S. Sphalerite is the major ore of zinc. Names for sphalerite used in the past or by miners include "zinc blende," "blackjack," "steel jack," and "rosin jack." Sphalerite has an incredible dispersion of 0. 156 that exceeds that of all of the popular gems and is three times