aa, bedrock, cluster, crag, gneiss, gravel, living rock, monolith, regolith, sand, scree, talus
Definitionn. a rudaceous rock consisting of sharp fragments embedded in clay or sand
Last update: July 14, 2015
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In this part of its course the rocky sides of the valley, which sometimes closely approach the river, are composed of marls and gypsum, with occasional selenite, overlaid with sandstone, with a topping of breccia or conglomerate, and rise at places to a height of 200 ft. [Please select]
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In the British Museum is an Egyptian mace-head of red breccia, which is identical in shape and size with one from Babylonia (also in the museum) bearing the name of Shargani-shar-ali (i.) [Please select]
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Emeralds abound in the region about Mount Zabara, and the eastern desert further yields jaspers, carnelians, breccia verde, agates, chalcedonies, and rock-crystal. [Please select]
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