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This unpolished slab of corundum-bearing rock from Hopedale, Newfoundland and Labrador features porphyroblasts and granular layers of corundum-sapphire in shades ranging from plum to lavender-purple to soft pink. The corundum forms in a dark, contrasting biotite-rich matrix and glows vividly under shortwave and longwave UV light.
While left unpolished, the surfaces on this specimen can be oiled or sealed with epoxy to bring out its full colour. This piece is also versatile lapidary rough for custom cabochons, tumbling, or carving projects.
Weight: 65 grams
Dimensions: approximately 80 x 25 x 14.10 mm. Please note this slab has a large saw lip on one side, as shown in the photos. The saw lips result from cutting hard rock on a manual saw. Despite the saw lip, the slab has very little variance in thickness throughout the cut surface.
