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Amethyst Tumblestone with ‘fingerprint’ inclusion£9.95 – £19.95
Ametrine Cabochons (Parcels)£17.95 – £21.95
Ametrine Tumblestones£1.95 – £2.95
Appearance, Uses and History
Numerous materials are often mistaken for or missold as Ametrine. Synthetically heated Amethyst is often sold as Citrine; it is possible for this heat treatment to be done only on part of the crystal by keeping another part cooler.
In addition, ferruginous Quartz can confuse some; it is a form of Quartz which contains Iron inclusions. In a lot of cases, this causes an orange-red crystal which may be mistaken for Citrine. Iron stained Quartz/Amethyst may have a similar appearance, too.
Ametrine is exclusively used as a gemstone or a decorative stone.
The better quality pieces have a good division between their purple and orange colours; as with most gems, the clarity and colour is very important in defining the quality of the crystal.
The Anahi mine in Bolivia is by far the most significant source of gem quality Ametrine; possibly the only source.
Photos of Ametrine
Hazards and Warnings
Almost all rocks, minerals (and, frankly, almost all other substances on earth) can produce toxic dust when cutting, which can cause serious respiratory conditions including silicosis.
When cutting or polishing rocks, minerals, shells, etc, all work should be done wet to minimise the dust, and a suitable respirator or extraction system should be used.
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