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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
Material: High Carbon Steel
seam edge grinding process
The grooved graphite crucible is designed for easy removal from the furnace using specially designed crucible tongs
Holds metal firmly in position at 30°/60°/45°/90° angles
7.31ct Oval Cabochon Star Sapphire 12.6x9.7mm hand press Material: High Carbon SteelSapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur. The variety in colours is due to trace amounts of elements such as iron, titanium, chromium, copper and magnesium. Mohs Scale of Hardness: 9 (out of 10). Sources: Mines that have yielded the finest sapphires in colour and clarity are located in Kashmir, Myanmar and Sri Lanka. Nowadays the main sources of sapphires are:
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