ਬੋਨ ਐਸ਼ ਦੀ ਬਣੀ ਇੱਕ ਛੋਟੀ ਜਿਹੀ ਕਟੋਰੀ ਜੋ ਕੀਮਤੀ ਧਾਤਾਂ ਨੂੰ ਵੱਖ ਕਰਨ ਲਈ ਵਰਤੀ ਜਾਂਦੀ ਹੈ ਜਿਵੇਂ ਕਿ,

cupels's Usage Examples:

Cupellation: the lead bullets are placed in porous crucibles (cupels) of bone ash or magnesium oxide and heated in air to about 1000 °C.

The correct method of preparation of the cupels is covered in detail with beech ashes being preferred.

numerous sacred sites covered with rock carvings, and in particular with cupels, gullies and ritual basins.

with some sticky substance to mould the cupels.

rocks of Villarbasse show evident traces of graffiti such as the Neolithic cupels.

In fire assay, magnesite cupels can be used for cupellation as the magnesite cupel will resist the high.

Moulds were made out of copper with no bottoms so that the cupels could be taken off.