5.09ct Pear Shape Opal 17.5x11.2mm Sand Casting Flask

5.09ct Pear Shape Opal 17.5x11.2mm Sand Casting FlaskOpal is probably the most famous phenomenal stone displaying the unparalleled play of colour, a rainbow coloured kaleidoscopic effect. The name opal derives from the word 'opalus' given by the Romans, which is Latin for 'precious stone'. They can be fragile which makes it more suitable for jewellery such as necklaces, brooches and earrings that are less likely to be knocked. Opal is the birthstone for October. Mohs Scale of Hardness: 5. 5 6. 5

Package Weight: 169g / 5

Printed circuit boards

Ø70mm x 70mm deep internal centre to hold tools

Adjustable air pressure to suit the job

Resinous oil is removed very gently and efficiently Brass and gold alloys are lightened

PVC and tinplate

100% brand new and high quality

with heat and cool control

Item Length: 4cm

Up to 30 frames per second

Carat Weight (ct): 40

Metal construction