Jet Skull [1k688] aliens which is a rare colour

which is a rare colour for quartz

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very distinct looking stone

10cm length x 9

This South African stone is not a Jasper at all

Jet Skull [1k688] aliens which is a rare colourJet is of organic origin and not a mineral or stone at all. Jet is a Lignite, and is similar to coal but the formation process is different. Jet is created when wood based material is covered in waterlogged sediment and is compressed and heated over time. Accordingly Jet is very light, only weighing roughly half the weight of Agate at the same size. Jet is found in several places worldwide including England, Spain, Germany, China and Turkey. This