For example, jadeite is the hardest natural mineral, and painite is the second ... although recently painite has been used to create expensive jewelry.

I cover upmarket jewelry, timepieces & ethical, sustainable jewelry. With one of the richest gemstone mining histories ... meteorites are fragments of natural material emanating from asteroid ...

Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water ... affect landform development and form natural resources such as gold, tin, iron ...

When it comes to selecting a gemstone for an engagement ring, a piece of fine jewelry, or any other special occasion, the ...

Falling demand and prices have stripped diamonds of much of their luster from the past century. The popularity of these ...