Type of stone Semi-precious, ornamental Prevalence (Deposits) Armenia, Brazil, Georgia, India, Mongolia, Russia, Tajikistan Varieties
Since ancient times, sapphire has been considered a symbol of power; it was used to decorate items that were touched by the first
Rock crystal is one of the varieties of semi-precious quartz stone. Chemical composition of the rock –
Silver is a beautiful noble metal, which is a good alternative to gold: it is stored for centuries, but is worth
Onyx is an ornamental stone that is a chalcedony variety of quartz. A distinctive feature of onyx is
Limestone stone is familiar to everyone: both pliable chalk and durable marble are essentially
What types of gold are there? In Russia, precious metals presented on store shelves must have
From this article you will learn: What types of colors does obsidian stone have? Is obsidian possible?
Mica ring Mica is a group of rocks and minerals that have a layered structure
Fluorspar is the mineralogical name for fluorite. The stone got its name back in 16
