Gems

Spinel is a red semi-precious stone. In the past it was often confused with ruby ​​because

Diamonds were formed deep underground and pushed to the surface by volcanoes over millions of years.

Main types of zircon Zircon has several best-known varieties. Hyacinth Has a pale color

Type of stone Precious Prevalence (Deposits) Widely distributed Varieties Verp light, Wisselton, crystal, light brown,

How to clean topaz in a silver frame Cleaning topaz in a silver frame is not an easy task

“Prasiolite - what kind of stone is this?” - the first question that can be heard from

The story of scientists and sailors Pliny the Elder mentions tourmaline under the name “lychnida”. Moreover

A precious variety of corundum Natural corundum is a very hard mineral as it is inferior in hardness

There are many mysteries associated with this stone. It is considered semi-precious, but costs like a diamond, and