The Mohs Scale of Mineral Hardness is a comparative method for measuring the hardness of minerals (but it is used for other materials, as well). It was created in 1812 by geolo...
The engagement ring is a timeless symbol of love and together with the wedding ring, they symbolize the endless unity and love of the couple. Talking about engagement rings, we usu...
Tourmaline is a mineral gemstone available in almost any color you could imagine. More importantly, tourmaline is one of the rare minerals whose crystals could be bi-colored or eve...
The mineral spinel occurs in several colors, like black, blue, green, orange, and of course, red, which was often confused with ruby. It was back in 1783, that spinel was first ide...
Silver is one of the precious metals, along with gold, platinum, and palladium. Silver has been used in jewellery making since 3000 BC approximately. Nowadays it's very popular and...
Costume Jewellery has been on the market for over 300 years. The jewels owned by the women of wealthy families were usually family heirlooms and bequeathed from mother to daughter,...
