Jasper, Net (Picasso) Tumbled Stones

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Jasper, Net (Picasso) Tumbled Stones Origin: USA

This aptly named stone that looks much like an abstract painting is composed of a network of criss-crossed black lines on a whitish grey backdrop. Found in southwestern Utah, it is a metamorphic rock formed from Limestone. Geologically, a metamorphic stone forms deep in the earth, its essential nature altered by heat and pressure. Only those aspects of the stone which are impermeable to pressure and heat are preserved. The limestone was "cooked" by the introduction of igneous material which flooded the stone with solutions that travelled through a network of fractures. Picasso marble sometimes features reds and often cream colours.