Massive 11,000-Carat Ruby Unearthed in Myanmar
Miners in Myanmar have uncovered a rare 11,000-carat ruby weighing 2.2 kilograms , or 4.8 pounds , in one of the country’s…
Gemstones
How is Amethyst Formed
Amethyst is a purple variety of quartz (SiO₂) formed through a combination of silica-rich fluids, slow crystal growth in op…
What is Velvet Malachite
Velvet malachite is a textural habit of the copper carbonate hydroxide mineral malachite (Cu₂CO₃(OH)₂), defined by extreme…
Alligator Quartz
Alligator quartz is a distinctive textural variety of quartz defined by its reptile-skin surface composed of tightly packed…
What is Shungite
Shungite is a rare, carbon-rich mineraloid rock found primarily in the Karelia region of northwestern Russia, near the vil…
How to Tell If a Rock Is Worth Money
When you find an unusual or eye-catching rock and wonder if it might be valuable, the first step is careful observation and …
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