5pcs Natural Rough Ruby Corundum 45.5ct Untreated Crystals

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Five large rough ruby corundum crystals, photographed alongside a ruler to show scale, ranging from 10 to 19mm per piece. Each stone carries the brownish-orange iron oxide coating that characterizes Madagascar ruby rough as it comes from the deposit, with patches of the underlying red corundum color visible on the crystal surfaces. The pieces vary in shape - from blockier, more compact fragments to slightly elongated forms - all fully opaque and heavy in the hand at this size. Madagascar is the world's leading source of commercial natural ruby, and this five-piece lot totaling 45.5 carats offers substantial raw material for collectors, lapidarists, and mineral specimen enthusiasts. Pieces of 10-19mm represent some of the larger individual ruby crystals available at this price level. The lot is completely untreated, as extracted from the deposit, with naturally occurring UV fluorescence. Large opaque ruby rough is valued for lapidary cutting, display specimens, and natural stone collections. Stone type: Natural Ruby Weight: 45.5ct (5 pieces) Size: 10-19mm (each) Color: Red Cut: Rough crystal Clarity: Opaque Treatment: Untreated Origin: Madagascar Hardness: 9 Natural ruby corundum rough crystals, July birthstone - sold loose, 5 pieces. Show more