2.1 billion-year-old stripes made of iron and jasper. Banded iron formation in Michigan, USA
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Stripes made of iron and jasper This rock, with its beautiful stripes of alternating bright red and dull shiny […]
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A lava pipe connecting the mantle to the ground. Black Rock, Wyoming, USA
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Rare lava with its source in the mantle In the southwestern part of Wyoming, there is a volcanic rock area cal […]
A forest turned into a rainbow-colored gem. Fossil Forest National Park, Arizona, USA
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A huge tree buried in volcanic ash became a colorful jasper A huge tree lying in a desolate rocky desert. At f […]