This form of Cryptocrystaline Quartz contains inclusions of small
crystals that reflect light and give a range of colors - depending
on the nature of the inclusion. Hence aventurine may be green,
greenish-brown, blueish-white, bluish green and orange. Aventurine
has a hardness rating of 7.
Aventurine has been confused with amazonite and jade. Dark green
Aventurine generally has inclusions (due to green fuchsite mica
and perhaps a bit of pyrite) which creates a speckled appearance.
This is an easy identifying factor often called aventurescence.
If a color is not stated with the word aventurine, it is usually
assumed to be green.
Translucent Aventurine often fades in the sun.
Aventurine is found in Brazil, India, Japan, Russia, Tanzania, and