Green Chert is cryptocrystalline quartz, usually of biological origin
These are interesting stones that have been fully tumbled to develop a rounded shape with smooth glossy finish (polished appearance).
Their colour is best described as medium olive green. They are darker than Aventurine Green and not as bright as Buddstone. They are slightly translucent giving depth to their appearance.
Chert is a name used for cryptocrystalline quartz. The individual crystals that make up chert are so small that it fractures into shapes more characteristic of glass than of crystals and chert stones were formed into arrow heads by Stone Age craftsman.
Chert is often of biological origin (organic) but may also occur inorganically as a chemical precipitate or a diagenetic replacement (e.g. petrified wood).
Longest dimension is 5mm-15mm with average length about 9mm.
These are ideal for use in resin art.
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Pack Size & Stone Size