Aventurine is a crystal of primary formation which means it was formed from molten magma. This happens in cavities in volcanoes where the combination of chemistry and structural arrangements of mineral deposits. Atoms and substances pass from gas or liquid into a solid state. Or by means of going out of solution by precipitation or evaporation.

Aventurine is also a type of Quartz which is a Silicate mineral. It is classified as a  crystal which means that it is large enough to be viewed without a microscope.

Aventurine is also known for its shimmering or glistening effect which is caused by mineral trace inclusions of fuschite which allows for a silvery blue| green sheen.

Aventurine is also found in the colours of pink, red and white.