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Glossary of watchmaking

Jasper

Jaspe | ジャスパー | 碧玉

Jasper

An opaque, ornamental stone found in many colours, including white, brown, yellow, red, and green. It is often striped, speckled, and multi-coloured and is used in watch making as a dial. Jasper belongs to the microcrystalline chalcedony family.