WARRNAMBOOL GEM CLUB

Gemstones can take many forms. The most common forms are cabachons, faceted gems, tumbled gems, carved gemstones and slices of polished rock.

FACETED GEMSTONES

Cabachons: are dome shaped stones, often oval in shape, but can be circular or ‘free-form’. L to R, Top row Malachite, Blue Lace Agate; Bottom row Crazy Lace Agate, Malachite.

Faceted gemstones:  are gems cut with facets (flat faces) which are positioned to maximise the beauty of the gem. This is Rose quartz faceted using a ‘Heart shaped cut’.

Tumbled gems are formed by ‘tumbling’ a stone in water and abrasive grits. Generally used for lower value materials, they can still form very attractive gems. The above gems are Agates from Agate Ck, Queensland

Carved gems can be produced from many different gem materials, usually using diamond burrs to shape the stone.

Polished slabs of gem material can be very attractive.The top slab is a Tasmanian Agate, the lower slab is Malachite from Africa.

Varying shades and cuts of citrine (quartz)

Golden Beryl, Pendelque cut, 9.1ct

Topaz, Superflash One cut, 12.9ct

Topaz, Oval cut, 19.2ct

Mortlake Olivine, Superflash One cut, 2.1ct

Watermelon tourmaline, Barion freeform cut, 6.8ct

Smokey Quartz, Portuguese cut, 18.8ct

FACETED GEMSTONES: the following photos illustrate some of the many cuts and types of gemstones that facetors use in their hobby. If you are interested in learning to facet, contact a Gem Club or the Australian Facetors Guild.

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Ametrine, Cushion cut, 8.8ct

Apatite, Standard Brilliant cut, 3ct

Citrine, Pear cut, 11ct

Rose Quartz, Heart cut, 14.8ct

Tourmaline, showing a selection of different cuts and colours.

Amethyst quartz and ametrine, a variety of cuts.

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