Geology

Geology Caves in New Mexico: The Real Guide to Visiting Them TLDR New Mexico has one show cave everyone’s heard of and half a dozen worth knowing about. Here’s… August 31, 2026

Geology Minerals in Tanzania: What’s Actually in the Ground Table of Contents TLDR Tanzania sits on one of the more varied mineral inventories in Africa: gold, tanzanite,… August 25, 2026

Geology Réunion’s Active Volcano: Piton de la Fournaise Explained TLDR Réunion Island has exactly one active volcano: Piton de la Fournaise, on the southeastern side of the… August 20, 2026

Geology 15 Shield Volcanoes Around the World (Plus One on Mars) A shield volcano looks nothing like the cone kids draw in school. Picture a warrior’s shield laid flat… August 20, 2026

Geology How Many Active Volcanoes Does Tanzania Have? Just One Table of Contents The short answer Tanzania has one currently active volcano: Ol Doinyo Lengai, a 2,962-meter cone… August 20, 2026

Geology Nevada’s Volcanoes: Active, Dormant, or Extinct? TLDR No, Nevada doesn’t have any historically active (erupting) volcanoes — nobody has watched one blow in this… August 18, 2026

Geology Active Volcanoes in Nicaragua: Which Ones to Visit Nicaragua has 19 named volcanoes strung along a single 400-kilometer line called the Cordillera de los Maribios, and… August 16, 2026

Geology Ruby-Producing Countries, Ranked by What Actually Matters Two rubies can look identical under a jeweler’s loupe and sell for wildly different prices, purely because of… August 16, 2026

Geology Minerals in Gabon: The Manganese Giant Betting on More Table of Contents TLDR Gabon sits on roughly a quarter of the world’s manganese reserves and is the… August 16, 2026

Geology Minerals in Virginia: Where to Find Them Legally TL;DR Virginia’s headline minerals cluster into three belts: the Amelia County pegmatites (amazonite, beryl, tourmaline, rose quartz), the… August 14, 2026