The riches of our land On the geographical map, topographers put special symbols and signs indicating that
Category Phosphates (minerals) Name in English. Apatite Formula Ca5[PO4]3 Group Mineral Group Color White,
Stone type Precious Prevalence (Deposits) Australia, Brazil, Kazakhstan, Canada, Russia, USA, South Africa Varieties
Sample 583 as an echo from the USSR, the history of its appearance, its features and composition From the very
Brief description of platinum Editorial team Promdevelop Platinum is a chemical element, metal (formula of platinum
We have known about the chicken god stone since childhood. As children we collected such stones
History and origin Coral is neither a mineral nor a plant, but the history
Origin of the name moonstone According to the description, the gem is characterized by a thin-plate structure. With this
Historical background Opal was known to ancient peoples; beautiful and frightening legends were created about it.
Preparing for cleaning To clean silver at home, you need to accurately determine the composition and