The St. Francis Dam Disaster The St. Francis Dam disaster of 1928 was the failure of a large concrete gravity dam due to unmitigated geologic hazards, causing over 55 miles of violent flooding, and over 400 deaths. It is said to be California’s worst engineering catastrophe to date. Updated April 11, 2024. Saint Francis Dam…
Blue Opal Gemstone The blue opal gemstone, like all other types of opal, is not a mineral. Instead, it is an amorphous mineraloid, which means it is a substance that comprises a specific arrangement of smaller microcrystalline silicas, which result in a blue spectrum of light reflection. Blue opal has an appealing luster and appearance,…
The Attire of a Geologist: Things that Geologists Wear and Use The attire and tools of a geologist vary depending on their sector of work and responsibilities. However, most geologists need specialized gear, technology, and equipment to execute their tasks. This article aims to discuss the attire and tools that geologists wear and use. Updated…
