Agate 18x25mm Brown Oval Bead - 15-16 InchAgate is a common, often banded, variety of chalcedony quartz that forms within volcanic rock cavities, featuring a Mohs hardness of 7. Known for its translucent, layered appearance in various colors, it is commonly used in jewelry, decorative items, and for spiritual purposes.

white mineral predominantly composed of magnesite and quartz

or igneous

Each strand is unique

It is quite hard

is transparent quartz crystal with brilliant sparkle

also known as Turbo marmoratus

Common opals are classed as a mineraloid

that gives the impression of the reflectivity of a cat’s eye

It is opaque

Natural Turquoise may be cut and polished

Azurite often occurs with green Malachite

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