Geology

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7y
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Igneous rock classification
CALCITE. Bisbee, Warren Dist., Cochise Co., Arizona, USA. ... | Lot #87164 | Heritage Auctions
Calcite, Arizona, USA....That's not a sculpture made by a human, but by nature.. WOW... it looks like a volcanic cloud (well maybe they are a couple of different sets of rocks put together to make it appear like a volcano, but still the rock formations are developed by nature
Geology Rocks
The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science. More
Natural Fossil Art and Design
Fossil Turtle. Undescribed member of the family Baenidae, Early Eocene (50 million years). More
College of Arts and Science
Have done fossil hunting (only where it's legal) in Montana, North Dakota and Washington. Fun for all ages. More
UK fossils including British ammonites
Highly polished rare Marsdon Magna Marble which was discovered and prepared by Andy Cowap. These famous fossils from this location were somewhat of a myth for well over two hundred years, until now. Approximately 200 million years old. More
Electronics, Cars, Fashion, Collectibles & More | eBay
Trilobites have been extinct since the great Permian extinction >250 million years ago. This extinction wiped out approximately 95% of all life forms living at the time. (historical geology) More
30+ mysterious caves, a deep walk into the heart of the earth - Blog of Francesco Mugnai
30+ mysterious caves, a deep walk into the heart of the earth More More