Amethyst gemstones ranges in colour from deep
purple to pale lilac. The most popular varieties of this gem are found in
Africa and South America. The name amethyst
derives from the Greek word amethystos, which means "not drunk". It
was used from that period through to the middle ages to help maintain clarity
and sobriety when having the odd goblet or two. There are countless references
to this in ancient Roman texts . Quartz will commonly contain trace amounts of iron (in the range of
10's to 100's parts per million of iron. The colour in amethyst comes from colour
centres in the quartz. These are created when trace amounts of iron are
irradiated (from the natural radiation in the rocks) .
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Ref:5865 Amethyst 10mm Triangular Gemstone Cabochon 5mm Profile 3ct/0.6gm Fo..
Ref:5657 Amethyst 12mm Round Gemstone Cabochon 6.5mm profile 7ct/1.4gm ..
Ref:0467 Amethyst 14x10mm Oval Gemstone Cabochon 7mm profile 7ct/1.4gm ..
Ref:12672 Amethyst 17mm Loose Stalactite Gemstone Slice 5mm profile 11.5 ct/2.3 g ..
Ref:10891 Amethyst 17mm Loose Stalactite Gemstone Slice 5mm profile 10.5 ct/2.1 g ..
Ref:0887 Amethyst 17mm Loose Stalactite Gemstone Slice 5mm profile 10ct/2gm ..
Ref:44597 Amethyst20mm Round Loose Gemstone Cabochon10mm profile30 ct/6.0 g..
Amethyst20x15mm Oval Loose Gemstone Cabochon10mm profile23.5 ct/ 4.7 g..
Amethyst 21x17mm Polygon Cut Gemstone Cabochon 7 mm profile 17.60 ct/ 3.52 g&nbs..
Amethyst 22x14mm Oval Loose Gemstone Cabochon 9.5mm profile 22.95 ct/ 4.59 g ..
Amethyst 22x18mm Oval Loose Gemstone Cabochon 9mm profile 29.75 ct/ 5.95 g ..
Amethyst 23x14mm Oval Loose Gemstone Cabochon 10mm profile 26.65 ct/ 5.33 g ..
Amethyst 24x18mm Oval Loose Gemstone Cabochon 10.5mm profile 33.25 ct/ 6.65 g ..
Ref:44595 Amethyst25x16mm Oval Loose Gemstone Cabochon9mm profile29 ct/ 5.8 g..
Amethyst 26mm Round Loose Gemstone Cabochon 9mm profile 46.60 ct/ 9.32 g ..
Ref:24260 Amethyst26x16mm Oval Loose Gemstone Cabochon8mm profile26 ct/5.2 g..
Ref:44591 Amethyst34x20mm Semi-Circular Loose Gemstone Cabochon9mm profile51.5 ct/10.3 g..
Ref:24283 Amethyst26x17mm Oval Loose Gemstone Cabochon10.5mm profile34 ct/6.8 g..
Ref:24261 Amethyst28x20mm Oval Loose Gemstone Cabochon12.5mm profile51 ct/10.2 g..
Amethyst 30x19mm Rectangular Loose Gemstone Cabochon 12.5mm profile 57.65 ct/ 11.53 g..
Ref:0756 Amethyst 35x10mm Triangle Gemstone Cabochon/Wand 5.5mm profile 13.5ct/2.7..
Ref:3382 Amethyst 5mm Round Gemstone Cabochon Pair 2.5mm profile 1ct/0.2gm &n..
Ref:3380 Amethyst 5mm Round Gemstone Cabochon x 4 3mm profile 2.5ct/0.5gm &nb..
Ref:6573 Amethyst 7mm Round Gemstone Cabochon Pair 3.5mm profile 3ct/0.6gm &n..
Ref:1185 Amethyst 8mm Round Loose Gemstone Cabochon Pair 4.5mm Profile &n..
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