Name:
Aventurine derives its name from Italian - per avventura - by chance
Description:
Aventurine is composed of two gem minerals, one is plagioclase feldspar and the other is quartz. Both have a sparkling reflection from oriented minute inclusions of mica or hematite, which cause a slight metallic iridescence.
Gemmological Characteristics:
Aventurine is a soft green semi-translucent to mostly opaque stone with mica flecks. Aventurine also comes in silvery, yellow, reddish brown, greenish-brown, bluish green and orange. It contains inclusions of small crystals that reflect light and give a range of colours - depending on the nature of the inclusion.
Gem Folklore
Aventurine is the anniversary gemstone for the 8th year of marriage.
Sourcing:
Aventurine is found in Brazil, India, China, Japan, Russia, Tanzania, and USA. Extensive beds in mica schist occur in the Russian Ural Mountains. Green aventurine, coloured by a chrome mica, has been found in the state of Tamil Nadu (formerly Madras), India, China, and in Rutland (Vermont).