একটি ছোট ঝাঁঝর হাড় ছাই দিয়ে তৈরি বাটি উদাঃ থেকে মূল্যবান ধাতু পৃথক করার assaying ব্যবহৃত নেতৃত্ব

cupels's Usage Examples:

with some sticky substance to mould the cupels.

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

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

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.

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.

cupels's Meaning':

a small porous bowl made of bone ash used in assaying to separate precious metals from e.g. lead