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Blue, cuprian, botryoidal Allophane on matrix. Germany. Aluminum silicon. Environment: In marlstone rocks (TL) and weathering product of volcanic ash

Blue, cuprian, botryoidal Allophane on matrix. Environment: In marlstone rocks (TL) and weathering product of volcanic ash

Springpad: Vivianite

Vivianite - A soft and malleable hydrous iron phosphate mineral with monoclinic crystals. Vivianite occurs in deposits rich in manganese and iron.

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pearl-nautilus: “ Cluster of transparent, almost colorless tabular BARITE crystals on matrix.

amethyst en fluoriet

Amethyst with Green Fluorite - Minerals, Crystals, Gemstones, Natural Formations

Koroit Matrix.  Dieter Rosenkranz has the most beautiful images of opals I have ever seen on the Internet.  You should follow his page.

Koroit Opal by Ulrike Kalthaus , from the Koroit Opal Field , Ulrikes Stokade Mine , Queensland , Australia

Brilliant Green Cuprian Adamite Botryoidal by FenderMinerals

Brilliant Green Cuprian Adamite Botryoidal Crystalline Rare Natural Mineral Specimen from Mexico

Mt. St. Helens eruption, 1980.  Photo by Jim Cottingham.

Helens eruption, the deadliest and most economically destructive volcanic event in the history of the United States. Fifty-seven people were killed; 250 homes, 47 bridges, 15 miles km) of railways, and 185 miles km) of highway were destroyed

Fossil Eocene bird 48 million years old |!!!  Messei Museum ,Southern Germany !!! Flickr !!

Look closely at this 48 million year old fossil, is it a bird or a dinosaur? Has the body of a bird but the face of a dinosaur, a clear transitional species

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