Moonstone is a type of feldspar mineral that has a unique adularescent effect, meaning it displays a shimmering, floating light effect that appears to...

The Geological Origin, History, Layered Structure and Why This Dark, Banded Stone Has Been Valued for CenturiesOnyx is a stone that leaves a heavy,...

Among all gemstones studied by mineralogists and gemologists, alexandrite remains one of the most scientifically fascinating. It is a variety of the mineral chrysoberyl...

Jadeite is a mineral that belongs to the pyroxene group, which is a group of rock-forming silicate minerals. It is one of two types...

Emerald are a type of gemstone that belong to the beryl family, which has the chemical formula Be3Al2(SiO3)6. They are valued for their intense...

Ruby is a gemstone and a variety of the mineral corundum (Al2O3) that is distinguished by its red color, which is caused by trace...

Sapphire is a precious gemstone that is a variety of the mineral corundum, which is composed of aluminum oxide. It is typically blue in...

Agate is a fascinating and versatile mineral that has captivated human interest for thousands of years. Agate is a variety of chalcedony, a mineral...

Chalcedony is a mineral that is composed of microscopic crystals of quartz. It is a cryptocrystalline form of silica, meaning that its crystals are...

A Gemstone Forged by Earth’s Hidden ForcesAmethyst is more than a beautiful purple gemstone — it is a geological story written in quartz crystals,...

Amber is a fascinating organic gemstone that has captured human fascination for millennia. It's not a mineral, but rather a fossilized resin from ancient...

A pearl is a hard, shiny object produced in living tissue such as a crustacean mollusk or fossil conulariids. It is generally composed of calcium carbonate and mainly aragonite.