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For Russians, Ural is a jewellery box with precious stones, because more than 200 minerals and precious stones are in the depths of these mountains (asbestos, rock crystals, malachite, beryl, jasper, zircon, gold)

For Russians, Ural is a jewellery box with precious stones, because more than 200 minerals and precious stones are in the depths of these mountains (asbestos, rock crystals, malachite, beryl, jasper, zircon, gold)

Vanadinite  Photo Copyright © 2006 by Dominik Schläfli. All rights reserved.  - This image is copyrighted. Unauthorized reproduction prohibited.  Locality: Apache Mine (Defiance Mine; Defiance Lead Mine; Apache Vanadium Mine; Defiance vein; Vanadium shaft), Radium, Burch area, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA  Image is 4.5 mm wide.

Vanadinite Photo Copyright © 2006 by Dominik Schläfli. All rights reserved. - This image is copyrighted. Unauthorized reproduction prohibited. Locality: Apache Mine (Defiance Mine; Defiance Lead Mine; Apache Vanadium Mine; Defiance vein; Vanadium shaft), Radium, Burch area, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA Image is 4.5 mm wide.

Polished rocks...one of my many obsessions and collections of youth.

Polished rocks...one of my many obsessions and collections of youth.

Grains of sand magnified by 250 times.

Grains of sand magnified by 250 times.

Grains of sand

20 choses du quotidien vues au microscope, un autre regard

At a time when communication networks are scrambling for ways to transmit more data over limited bandwidth, a type of twisted light wave is gaining new attention. Called an optical vortex or vortex beam, this complex beam resembles a corkscrew, with waves that rotate as they travel.

Counting the twists in a helical light beam: New device could help advance future optical communications

At a time when communication networks are scrambling for ways to transmit more data over limited bandwidth, a type of twisted light wave is gaining new attention. Called an optical vortex or vortex beam, this complex beam resembles a corkscrew, with waves that rotate as they travel.

tiny grains of sand are shown to be delicate, colorful structures as unique as snowflakes (viewed at a magnification of over 250 times real life size; gary greenberg)

tiny grains of sand are shown to be delicate, colorful structures as unique as snowflakes (viewed at a magnification of over 250 times real life size; gary greenberg)

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