0.43ct Cushion Cut Bi-Colour Sapphire 4.4x3.7mm Bergeon 4915E Antimagnetic

0.43ct Cushion Cut Bi-Colour Sapphire 4.4x3.7mm Bergeon 4915E AntimagneticSapphire 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:

the precision heating control

Each tweezers has a plastic protective sleeve to avoid damaging the tip of tweezers

V slots between hub of balance staff and seat of roller

FCC certificated to offer safer and preciser measurement

Single push: Zero sets the tester

also has external power interface for convenient use

multi-function

Supplied with extra pull out table top above each set of draws

Thickness 5

real beechwood

This inexpensive wooden mandrel is made from good quality boxwood

Application: Computer Tool Kit