How is petrified wood made? The process of petrification occurs underground when a tree is buried under
History and origin British scientist William Heidinger was the first to describe siderite as an independent mineral
How big is a one-carat diamond? A carat is a measure of weight, and one carat is equal to 200
Gold jewelry is expensive, so not everyone can afford it. The solution to the problem is gilded silver.
Use of onyx The history of many peoples is connected with this stone. It was used as a finishing building material
HOW ARE PEARLS FORMED IN A SHELL Wild pearls in nature are produced by some species of river and
Have you ever heard of the metal palladium? Quite recently, knowledge about him was ending
Type of stone Semi-precious, ornamental Prevalence (Deposits) China, New Zealand, Russia, USA Varieties Lantian, Nanyang,
A marriage proposal is a very exciting moment for any man and the question often arises:
/ List of stones / Magical properties of pink opal 0 3624 Article rating Pink opal
