Characteristics

Emerald is a beautiful and popular stone. In Russia it is sold at a price from

Attention! Please be aware of the DISCLAIMERS as you read the information below. The article is intended for NFOs, because

How do ferrous metals differ from non-ferrous metals? The above list is exhaustive for magnetic chemicals

Turquoise is a stone that has captivated many girls’ hearts with its simple beauty. Nowadays it's

According to Article 1 of the Federal Law of March 26, 1998 No. 41-FZ “On Precious Metals

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Most people know that garnet is burgundy red and the traditional birthstone for January. This is one of

Category Silicate minerals Name in English. Rhodonite Formula Mn2+SiO3 Group Silicate group Color Red,

The history of green gold Man learned about green gold several thousand years ago

Amber is the frozen and fossilized resin of ancient trees. The color of amber is extremely rich: yellow, orange,