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Chalcedony Helictite Group - The Big 'A' Cluster

Currency:USD Category:Collectibles / Rocks, Fossils & Minerals Start Price:1,350.00 USD Estimated At:1,600.00 - 1,800.00 USD
Chalcedony Helictite Group - The Big 'A' Cluster
<B>CHALCEDONY HELICITE GROUP'THE BIG 'A' CLUSTER</B></I><BR> <I>Deccan Plateau, India</B></I><BR>This exotically sinuous bit of Nature's whimsy was discovered in the course of operations at one of the numerous road metal quarries that are scattered about the Deccan Plateau; a vast lava flow covering thousands of square miles in central India. Bubbles in the lava are occasionally found to harbor strange wormlike growths formed of chalcedony; a form of silica closely related to agate. In this case, erratically radiating crystals of an unidentified black mineral were coated by translucent chalcedony. As a final touch, Mother Nature gave the structure a final overcoat of sparkling, druzy quartz sprinkled with a few pearlescent blades of stilbite. Not visible in the photograph are a few green doubly-terminated crystals of apophyllite. Mounted on a custom base. The tip of one 'arm' is broken, otherwise fine. It measures 6 x 4 ½ x 2 ¾ inches deep. <BR><BR><b>Shipping:</b> Requires 3rd Party Shipping (<a target="_blank" href="http://www.heritageauctions.com/common/shipping.php">view shipping information</a>)