A space to discuss aspects of the Caribbean geology, ore potential of the ophiolite belts, etc.
Saturday, August 2, 2025
https://youtu.be/0Q0RZj_LXyA
Red Diamond: The Rarest, But WHY?
Timestamps
0:00 Intro
0:38 A rock you can eat
1:36 Gemstone family secret
2:53 "Most wanted" US volcanoes
4:38 A journey through time
This video explores a range of geological facts, from surprising everyday occurrences to significant Earth processes. It highlights the 18 "very high threat" volcanoes in the U.S., concentrated in Alaska, Hawaii, and the West Coast states, as identified by the 2018 U.S. Geological Survey National Volcanic Threat Assessment. Examples like Kīlauea in Hawaii and Mount St. Helens in Washington are discussed, noting their hazard potential and impact on communities and infrastructure. The video also touches on volcano monitoring efforts by the USGS, which aim to understand past eruptive behavior, track current activity, and mitigate the damaging effects of volcanic phenomena like airborne ash clouds and lava flows.
Beyond volcanic threats, the video delves into fascinating facts about gemstone rarity and origins. It reveals that common antacids contain calcium carbonate, effectively meaning they are chalk. The discussion extends to rarest diamonds, emphasizing red diamonds as the most uncommon and exploring various fancy colored diamonds such as blue and pink diamonds. A particularly intriguing revelation is the potential extraterrestrial origin of black diamonds, or carbonado, challenging traditional terrestrial formation theories.
The video also clarifies that rubies and sapphires are essentially the same mineral, corundum, with their different colors stemming from trace elements. This blend of deep Earth processes and surprising everyday geological connections offers a comprehensive look at our planet's hidden wonders.
P. Geo. Ricardo A Valls, M. Sc. and Geo Gadfly
Valls Geoconsultant
ORCID ID- https://orcid.org/0000-0002-5421-0914
Scopus Author ID: 7003369619/35335510700
ResearcherID: S-6604-2018
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#geology #volcanoes #gemstone
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