Most of the precious gems that are found on Earth are created by the combining of various chemicals at high temperatures and pressures deep in the Earth's crust. Others are created in laboratories that simulate those conditions.
Many many many years ago, people would shave their gooch hairs. These shavings underwent a precipitational process in which they would form a chemical bond with each other. Over thousands of years they would become closer and more dense with each other, and eventually they geologically became coloured rocks, which are today known as gems. Strangely, this process does not work with pubic hairs - they create gold.
gem and precious stone
theres 75
tanzalite is a man-made material.
yes it is. don't mixed up with zirconium cubic witch mean in that case a lab created one.
Colombia is well know for its emerald mining.
The precious gem that starts with the letter d it the diamond
typesof precious gem
Blue sapphires are natural gemstones they are not made. Which is what makes them a precious gem stone.
Precious Gem - 2012 was released on: USA: 24 July 2012
Diamond
emerald
Not a diamond.I know that
A very precious gem.
diamond
diamond or emerald
Neither its a precious metal
It means precious gem