Are you ready to make some noise? It"s International Rock Day! Wait, not that sort of rock. Today, we"re all about granite, limestone and slate. There are three types of rock: igneous are formed from solidified magma and lava; sedimentary rocks are layers of sedimentary particles such as sand; and metamorphic rocks are the result of heat and pressure on other kinds of rock.
International Rock Day
Today in History
More Desktop Wallpapers:
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Wheatear, Peak District National Park, England
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A glowing square of squares
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Bridging past and present
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International Polar Bear Day
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International Museum Day
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Pride in London
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Where is this historical bridge?
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Eurasian lynx
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Christmas in the cloister
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Want to hang about?
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A prickly customer
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The other great barrier reef
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Love is in the snow
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Barracudas at Shark Reef, Ras Mohammed National Park, Sinai Peninsula, Egypt
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A right royal tradition
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Maasai giraffe mother with calf in the Serengeti, Tanzania
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Living rock
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Small but mighty
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Pacific Rim Whale Festival
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Advent Sunday
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Vernazza, Cinque Terre, Liguria, Italy
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Third Thai-Lao Friendship Bridge connecting Laos and Thailand
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Rapa Valley in Sarek National Park, Sweden
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World Jellyfish Day
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Splügen Pass, Switzerland
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In the running
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Clouds dance above Sundance
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Postcard from Italy
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Ring of fire solar eclipse
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Via Krupp, Capri, Italy
Bing Wallpaper Gallery

