The physical properties of a diamond

The physical properties of a diamond.

Cleavage. The diamond has a pronounced cleavage parallel to the octahedron faces. This is used for cutting (splitting) and grinding. Przy lekkim uderzaniu ostrza przyłożonego do diamentu w kierunku płaszczyzny łupliwości następuje rozłupanie diamentu na

The hardness of the stones

The hardness of the stones

From vector properties of minerals, especially gemstones, the most important thing is hardness. It is resistance, that minerals put when trying to scratch or wear them. Very soft minerals are known, które dadzą się zarysować paznokciem lub

Hard and soft precious stones

Hard and soft precious stones

However, there is another division, which is worth writing a little more about. We will refer to it frequently in later chapters. “In this case, the hardness of the stones was chosen as the criterion.

Jak należy

Classification of gemstones

Classification of gemstones.

Bauer reported, adopted for K.. E. Klugiem the division of stones, precious on 5 class. The basis of this division is primarily the hardness of the stones, having a major impact on their price. The right gemstones (jewelery), wyróżniające