Recently discovered near the Tanezrouft Plateau in Algeria’s Sahara Desert, this rare Rumuruti (R3) chondrite features breccia embedded in a fine-g...

This amethyst stalactite slice from Southern Paraná Basalt Basin, Artigas, Uruguay features a beautifully banded cross section. The gemstone is tra...

Lustrous sparkling cluster of dolomite crystals from Morocco. Dolomite is part of the carbonate class of minerals and is know as a calcium magnesiu...