Geology


Geology

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✯ Milky Way over Fly Geyser, Nevada

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Fly Geyser – Not Quite of this World ~ Kuriositas

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Yellowstone National Park

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Ornate sapphire and diamond ring, by Chantecler. Set with a cushion-cut sapphire, weighing 36.83 carats, to a single-cut diamond-set gallery with pierced foliate detailing, between collet-set baguette-cut diamond-set shoulders, mounted in platinum, the diamonds estimated to weigh approximately 3.00 carats in total, maker's case, ring size 5¼ (with sizing bar). Via Diamonds in the Library.

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Old Faithful Geyser, Yellowstone National Park

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This picture shows the size of a sphere that would contain all of Earth's water in comparison to the size of the Earth. The blue sphere sitting on the United States, reaching from about Salt Lake City, Utah to Topeka, Kansas, has a diameter of about 860 miles (about 1,385 kilometers) , with a volume of about 332,500,000 cubic miles (1,386,000,000 cubic kilometers).

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Gorgeous cluster of hot-pink Cobaltian Calcite crystals on matrix

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Agate: Australia

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Corundum var. Sapphire (423 carats, Sri Lanka) Donated by Mrs. John A. Logan in 1960. The magnificent 423-carat Logan Sapphire was cut from a crystal mined in Sri Lanka and is one of the world's largest faceted blue sapphires (it is about the size of an egg). Smithsonian Collection

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This almond-shaped stone is the largest apple-green diamond known. Its green color is attributed to the crystal’s close contact with a radioactive source at some point in its lifetime. The Dresden Green, which probably originated in a rough crystal of 100 carats or more, is unique among world-famous gems for not only its color, but also its elongated shape.

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The William Goldberg Diamond Corporation, famous for outstanding stones like the Premier Rose and the Guinea Star, cut this gem from a 13.90-carat rough. They transformed the piece into a spectacular red diamond weighing 5.11 carats. The GIA states, "It is the largest Fancy Red, natural color diamond that we have graded as of the date the report was issued." The stone is a triangular brilliant, sometimes refered to as a trillion or a trilliant cut. It was cut sometime in the mid-1990s.

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+ Elbaite

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Elbaite “tree” with quartz “leaves”! :)

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Unprocessed sample of Ammolite, a 'Dragon-Skin' pattern is apparent. Ammolite is a rare and valuable opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is made of the fossilized shells of ammonites, which in turn are composed primarily of Aragonite, the same mineral that makes up nacreous pearls. It is one of several Biogenic-gemstones; others include Amber and Pearl.

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Titanite with Feldspare crystals

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Opal (Var: Wood Opal) from Virgin Valley District, Humboldt Co., Nevada, USA

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The vivid hues of Yellowstone National Park’s steaming Morning Glory Pool stand out in stark contrast from its snow-covered surroundings. by Michael Melford

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Malachite & Rosasite with Cerrusite, Namibia

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Barite / Peru

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Glassy crystal of light blue Topaz perched atop Lepidolite crystal books - From the 1969 find at Virgem da Lapa, Minas Gerais, Brazil

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uncut Aquamarine necklace made by BeijoFlor, on etsy

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Fluorite with Phantoms

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Shattuckite from Namibia

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Wavelite

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