August 2025

Woman Finds 2.3-Carat Diamond at Arkansas' Crater of Diamonds State Park

The third largest diamond of 2025, a 2.3-carat stone, was discovered by a New York woman at Arkansas’s Crater of Diamonds St…

Rocks That Contain Lithium

Lithium , often called the “ white gold ” of the energy transition, is a lightweight, silvery-white metal essential for the …

What Are Pyrite Ammonites

Pyrite ammonites are fossilized shells of extinct marine mollusks whose original material has been replaced or coated by ir…

Florida Couple Finds 3.36-Carat Diamond at Arkansas Crater of Diamonds State Park

A remarkable 3.36-carat white diamond was discovered at Arkansas’s Crater of Diamonds State Park, making it the second-larg…

The 'Enigma' Black Diamond: A 55-Sided, 555-Carat Mystery

The Enigma Diamond is a rare natural black diamond , or carbonado , weighing exactly 555.55 carats and cut with 55 facets—…