mineralia:

Vanadinite with Barite from Morocco

mineralia:

Fluorite from Mexico

mineralia:

Azurite from Mexico

mineralia:

Fluorite on Limonite coated Calcite from Mexico

mineralia:

Fluorite on Sphalerite from Illinois

mineralia:

Smoky Quartz from Mexico

ohscience:

Sulfur, salt, and other minerals color the crater of Ethiopia’s Dallol volcano.

mineralia:

Kunzite from California

mineralia:

Tourmaline in Cookeite from Brazil