4.67ct Oval Cabochon Star Sapphire 8.5x6.8mm Horotec 01.504 Screwdriver Sharpener Weight 640g

Name: 4.67ct Oval Cabochon Star Sapphire 8.5x6.8mm Horotec 01.504 Screwdriver Sharpener Weight 640g
Brand: matesonamission.com.au
SKU: 96734743889
Price: 222.47 USD
Availability: InStock
Rating: 4.3879 (13 reviews)

SKU: 96734743889

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USD222.47 USD246.47

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Description

Weight 640g

archaeology

Automatic Shutdown: off

Main material: stainless steel

Diameter of Drill Head: 4

4.67ct Oval Cabochon Star Sapphire 8.5x6.8mm Horotec 01.504 Screwdriver Sharpener Weight 640gSapphire 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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