Summer 2003 Gems & Gemology - GIAband-model energy-level diagram of corundum and .. thin wafer (0.9 × 16 mm) was cut from an extremely dark blue sapphire crystal from Shandong, China.diagram corundum sapphire crusher china,Origin and distribution of corundum from an intraplate . - UTas ePrints5.13 Variation diagrams of major element compositions in glass inclusions . .. southeastern China basalts are not major gem sources but sapphires have been .. megacrysts and steel from the crusher were ground for 1-2 minutes in a.Faceting Design Diagram: Ceylon Blues - Sapphire / Corundum .Detailed information and guide on Faceting Designs.A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Ceylon Blues"
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