Small Purple Banded Agate Tumble Stone

£1.00

20 in stock

Description

Agate was given its name by Theophrastus, a Greek philosopher who is believed to have discovered the gem on the banks of the river Achates (today called Cirilo), in the province Ragusa in Sicily in the 4th century BC. The gemstone was later mentioned in the Bible as one of the “stones of fire”.

Made from silicon dioxide, it has a glassy (vitreous) lustre, and is often used to make brooches and pins. It can also resist acids and has been used to make mortars and pestles to press and combine chemicals.

Many Agates originate in cavities of molten rock, where gas bubbles trapped in solidifying lava are replaced with alkali and silica bearing solutions. Formed as a banded round nodule (like the rings of a tree trunk) and has bands of colours of bands – Riband Agate.