Aventurine – Red

Scientific Name: Quartz with hematite mica.

Group: Silicates – tectosilicates

Chemical composition: SiO2

Colors: Red or pink

Hardness: 7

Formation: Hexagonal/trigonal crystal; Massive form, Conchoidal fracture; Translucent transparency.

Principal Sources: Ural Mountains, Russia; Tamil Nadu, India; Minas Gerais, Brazil; Rutland, Vermont

Special Notes: Has a spangled appearance due to sparkling internal reflections from uniformly oriented minute inclusions of hematite and other minerals.