June 2020

A Billion Years Missing From Geologic Record

A hiker walks along a road near Manitou Springs, Colorado, where an exposed outcrop shows a feature known as the “Great U…

Geochemists Solve Mystery of Earth's Vanishing Crust

Recycled ancient crust returns to the oceanic ridges. Credit: Caroline McNiel/National MagLab Thank goodness for the …

Woman Finds 2.23-carat Diamond in Arkansas

(Photo: Arkansas State Parks) A 56-year-old Arkansas woman was close to leaving Crater of Diamonds State Park in Mur…

Tanzanian Miner Finds World's Biggest Gemstone Worth $3.3 Million

The dark violet-blue gemstones were found by miner Saniniu Laizer in one of the tanzanite mines in the northern part of T…

California's Earthquake 'Swarm' Was Triggered by Fluid, Scientists Say

An animation summarising the team's observations. A fault zone is embedded in host rock and exhibits geometric warp…

Steamboat Tourmaline: One of California's Finest Minerals

The Steamboat Tourmaline is a world-famous specimen of elbaite tourmaline, a variety of tourmaline that is known for its vi…

Giant Ancient Egg Found in Antarctica Could Be First From a Mosasaur

Giant Ancient Egg Found in Antarctica Could Be First From a Mosasaur. The fossil egg, which looks like a deflated footballLe…

Caledonite: Facts & Informaion

Rare Caledonite Crystals. From: Victoria, Pozo Almonte, Iquique Province, Tarapacá Region, Chile Credit: Christian Rewitzer …

Utah's Arches Continue to Whisper Their Secrets

Sunset at Delicate Arch (Arches National Park, Utah). Two new studies from University of Utah researchers show what …

Scientists Discover “Unexpected” Structures Near Earth’s Core

Earthquakes send sound waves through the Earth. Seismograms record the echoes as those waves travel along the core-mantle…

Dinosaur Remains Reveal Surprising Remnants In Its Stomach

Dinosaur Remains Reveal Surprising Remnants In Its Stomach. The holotype specimen on display at the Royal Tyrell Museum …

Yellowstone Volcano's Biggest Ever Super-Eruption Discovered

Fountain Paint Pot, Yellowstone National Park. Credit: National Park Service. The biggest super-eruption ever to be re…

Scientists Discover New Forms of Feldspars

Scientists Discover New Forms of Feldspars. Amazonite, the blue-green variety of the feldspar Microcline with Smoky Quart…