Welcome to the updated, "OFFICIAL" web site of the:

Mid-Hudson Valley Gem & Mineral Society, Inc.


Below is a list of links we think you will find interesting.  If any links are broken (i.e., no longer work), please contact the webmaster on the contact us page.
Other Local Societies:

Some old links you may enjoy:

Dreadnoughtus: Gigantic, exceptionally complete sauropod dinosaur: From the Cretaceous of Patagonia, Argentina -

Deep sea ‘mushroom’ may be new branch of life: Some very odd invertebrates from the South Pacific Ocean -

Discrepancy in Greenland temperatures during end of last ice age resolved: Nitrogen isotopes  show the expected warming from 18,000 to 12,000 years ago, even though oxygen isotopes did not -

Life forms appeared at least 60 million years earlier than previously thought: A fossil soil (“paleosol”) 3.0 billion years old in India shows signs of weathering produced by oxygen-producing organisms -

Clue to trapping carbon dioxide in rock: Calcium carbonate takes multiple, simultaneous roads to different minerals -

Textbook theory behind volcanoes may be wrong: New studies of how magma flows up in the Earth to form volcanoes -

Three squirrel-like species discovered: Mammals may have originated much earlier than thought extinct; Jurassic mammals from China -

Scientists report first semiaquatic dinosaur, Spinosaurus: Massive predator was more than 9 feet longer than largest T. rex, from the Cretaceous of Morocco -

Spinosaurus fossil: ‘Giant swimming dinosaur’ unearthed from the Cretaceous of Morocco -

3-D printing of rocks and fossils -

Early Earth less ‘Hellish’ than previously thought: Zircon crystals 4 billion years old apparently show the presence of water and magma similar in temperature to today -

Impact that doomed the dinosaurs helped the forests bloom: Studies of fossil leaves show that non-evergreen plants thrived immediately after the asteroid impact that wiped out the dinosaurs -

Study of global carbon cycle may require reappraisal of climate events in Earth’s history: Sub-aerial weathering can change toe ratios of carbon isotopes, which will affect the calculated amounts of CO2in the ancient atmosphere -

Europeans drawn from three ancient ‘tribes’: DNA studies show that modern Europeans came from three groups about 7,000 years ago -

Mysterious volcanic eruption of 1808 described -

Hadrosaur with huge nose discovered: Function of dinosaur’s unusual trait a mystery
From the late Cretaceous of Utah -

Ancient DNA could unlock South Florida secret: DNA studies will be done on ancient (perhaps 14,000 years old) human bones from Florida -,0,667545story

Scientists debate polar sea-ice opposites: Studying why the freezing and melting of sea ice is so different in the North and South polar regions -

Fossil of ancient multicellular life sets evolutionary timeline back 60 million years: More observations on the late pre-Cambrian fossil multicellular spheres -

Earth’s water is older than the sun: Likely originated as ices that formed in interstellar space -

Global sea levels rose up to five meters per century at end of the last five ice ages -

Tooth buried in bone shows prehistoric predators tangled across land, sea: A phytosaur tooth found embedded in the thigh bone of a land-dwelling Triassic reptile in the western United States -

Want to see some fantastic gypsum crystals?  (Including a movie)  Go to or put in "crystal cave" in their search engine at the top right of the first page.

Mammoths had 'anti-freeze' blood: DNA studies on mammoth remains have shown that their blood was able to carry oxygen much more efficiently at low temperatures than present day elephants.  May 2, 2010:

Cave Reveals Southwest's Abrupt Climate Swings During Ice Age: Stalactites and stalagmites form slowly in layers over thousands of years in caves.  If there is even a trace of uranium in them the age of the different layers can be determined.  and by studying the oxygen isotopes in the calcium carbonate, it can be determined whether they formed when the climate was dry or wet.  January 25, 2010:

Fish Help Geologists By Gathering Stones From Ocean Floor: Here's an ingenious way to study the rock formations on the ocean floor.  The Antarctic toothfish has a habit of swallowing stones, and by studying these stones fron toothfish caught in various areas, one can get some idea of the kind of rocks on the ocean floor.  November 22, 2007:

Scientists Offer Solutions to Arsenic Groundwater Poisoning in Southern Asia: The worst water pollution problem in the world is caused by arsenic, which comes naturally from arsenic minerals.  It sickens or kills millions of people, especially in Bangladesh.  May 28, 2010 and
Arsenic Contamination Lacks One-Size-Fits-All Remedy   December 11, 2007

Ancient Asphalt Domes Discovered Off California Coast: Major oil "spills' in the oceans have occurred naturally in the past, when oil has found its way to the surface along faults or other weak spots in the crust.  About 35,000 years ago, there were some big petroleum eruptions off the coast of California, leaving asphalt deposits.  Sea life can recover from such catastrophes, but it takes a long time.  April 26, 2010:

This page last updated at 12:10:33 EDT on May 26, 2021.
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