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OPAL TRIPLET Oval 10x8
OPAL TRIPLET Oval 10x8
BEADS 16 inch Tumble GARNET
BEADS 16 inch Tumble GARNET
Hand Crafted 9ct Gold Pendant with Marine Opal.
Hand Crafted 9ct Gold Pendant with Marine Opal.
PERIDOT Rd 7.0mm
PERIDOT Rd 7.0mm
LARIMAR Cabochon 10mm Round AA
LARIMAR Cabochon 10mm Round AA
Ameritool 4/5inch Saw (220v) with 4inch Blade & Vice
Ameritool 4/5inch Saw (220v) with 4inch Blade & Vice
Cabochon 16x12 Oval LABRADORITE
Cabochon 16x12 Oval LABRADORITE
AMETHYST A-Grade  Rd 8.0mm
AMETHYST A-Grade Rd 8.0mm
GEM BOX WHITE Square 25x25x16mm
GEM BOX WHITE Square 25x25x16mm
GARNET Rd 4.0mm Rhodolite Pink
GARNET Rd 4.0mm Rhodolite Pink

Lapidary Machines

Introduction to Cabochon Cutting

Introduction to Cabochon Cutting

Although tumbling is an easy way of polishing a lot of stones fairly cheaply, it is restricted in that only baroque (free form) stones can be produced from rough rock or pebbles.
As a hobby, tumble polishing is limited because it is not time consuming and for this reason people look to the next stage of gemstone cutting , called 'cabochon’ cutting.
A 'Cabochon’ is any stone which has been cut to a particular shape, usually oval, using a saw and grinding unit.
Machines enabling all the operations to be undertaken on one small unit are called 'combination machines’.
These machines may also be used for cutting shapes (called preforms) out of stones which are to be tumbled.
The photograph alongside shows a Victorian mahogany, bench-type, hand operated, lapidary machine (suitable for Cabbing or Faceting), that was discovered in Calke Abbey, Derbyshire, after the National Trust took over it's administration. A similar unit is featured in a book on Agates published by the Natural History Museum

Our stock range, of around 8000 items, covers hobby and professional requirements for craft/workshop/therapy use. E & O E. Copyright: Manchester Minerals Ltd. April 2018