Types of stones

Category Beryl Name in English. Emerald Formula Be3Al2Si6O18 Group Beryl Group Color Yellowish-green, Green

The question of how to become a jeweler has been relevant for more than a hundred or even a thousand years -

If you love intellectual relaxation, then you probably do crossword puzzles or scanword puzzles in your spare time. Certainly,

The semi-precious stone rock crystal is the frozen ice of truth in the depths of the mountains. That's what they thought

10 largest diamonds in the world 3 (60%) 5 votes Diamonds are best friends

Platinum is a precious metal, the high cost and demand for which is ensured by a minimum coefficient

Global demand for silver products is growing steadily. However, looking for the treasured engraving of the quality certificate,

What does a gem look like? To analyze samples, you should know what the standard is, that is

Coasters, once common everyday objects, now occupy museum shelves. However, often

Limestone is a natural stone of soft sedimentary rock of organic or organo-chemical origin. The main element