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Rough Cubic-Zirconia Colour Change #14 (Unit - 1Ct)
Rough Cubic-Zirconia Colour Change #14 (Unit - 1Ct)
LARIMAR Cabochon 6mm Round AA
LARIMAR Cabochon 6mm Round AA
LARIMAR Cabochon 11x22mm Marquise AA
LARIMAR Cabochon 11x22mm Marquise AA
Ameritool 4/5inch Saw (220v) with 4inch Blade & Vice
Ameritool 4/5inch Saw (220v) with 4inch Blade & Vice
The Encyclopedia of Wire Jewellery techniques. S.Withers
The Encyclopedia of Wire Jewellery techniques. S.Withers
Cabochon 18x13 PAUA SHELL (Natural)
Cabochon 18x13 PAUA SHELL (Natural)
Cabochon 40x30 PAUA SHELL (Green)
Cabochon 40x30 PAUA SHELL (Green)
Tumbled Hypersthene size M 15-20mm (Per stone)
Tumbled Hypersthene size M 15-20mm (Per stone)
PERIDOT 8.0 x 6.0 Oval Cabochon 1.50cts Olive Green
PERIDOT 8.0 x 6.0 Oval Cabochon 1.50cts Olive Green
Fossil FISH Plaque (Avge 7cms x 6cms) Green River USA
Fossil FISH Plaque (Avge 7cms x 6cms) Green River USA

Rough rock for tumble polishing

Rough Rock for Lapidary Ref: IntroRough2
Rough rock does not photograph very well and so to indicate texture, colour etc. we have shown cut stones mostly made from our rough stock.
If the third digit of the code is '0' (i.e.??-0??) then the material will generally be supplied in tumble-polishing size but may still require further reduction in size by breaking with a lump hammer (Wrap stone in sacking to prevent flying 'chips' and also wear protective eye glasses). If the third digit of the code is a '1' (i.e. ??-1??) then the supplied material will generally be larger pieces suitable for cutting with a diamond saw.
HARDNESS;........
Hardness: use a simple 'scratch’ test to determine the approximate hardness of a stone. A stone which can be marked with a pen-knife, but not with glass, must have a hardness somewhere between 5 and 51/2.
Finger nail. 21/2
Penny 3
Broken glass 5
Pen-knife 51/2
(Hardness is shown in ‘Mohs’ units: 10 is hard down to 1 soft.)


Rough Rock for Lapidary

Our stock range of nearly 10,000 items covers hobby and professional requirements for craft/workshop/therapy use. E & O E. Copyright: Manchester Minerals Ltd. November 2016