
This type of quartz contains inclusions of small crystals that reflect light, and which give a variety of colours - with respect to the nature from the inclusion. Green aventurine quartz has platy inclusions of green fuchsite mica; pyrite inclusions provide a brown colour; a greenish brown variety might be because of the mineral goethite. Other inclusions give bluish white, bluish green or orange varieties.
Aventurine quartz can be found in Brazil, India and Russia. Other localities include the united states, Japan and Tanzania.
Aventurine quartz may be wrongly identified as aventurine feldspar, amazonite and jade. A stimulant referred to as goldstone, has been manufactured to mimic both aventurine quartz and aventurine feldspar. It has small triangles and hexagons of copper locked in glass. Having a x10 hand lens it ought to be possible to determine the outlines from the copper spangles.
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