Granite is a rock of a certain mineralogical composition that was formed from magma at great depths.
Spinel is an original and very rare metal. The gemstone has a rich color and memorable
Gold jewelry is in great demand all over the world. The jewelry market is growing rapidly, and production
Formula X2-3Si2O5(OH)4 Color Dark green, shades of black, brown Gloss Glassy, greasy, waxy Transparency Opaque Hardness
For the manufacture of jewelry, 585 gold is used - more than half of the composition in the product
The amethyst stone, whose properties have been known to man since ancient times, continues to captivate people today.
The concept of “precious metals” includes gold, silver and platinum group metals. Thanks to the high chemical
What: Ornamental; Deposits: Mexico, Ecuador, Iceland, Japan, Ethiopia, Armenia, Turkey, Russia (Kamchatka, Caucasus, Kuril
The highest standard of silver in jewelry The purest standard of silver The lowest standard
Limestone stone is familiar to everyone: both pliable chalk and durable marble are essentially
