Turquoise is an opaque (cannot be seen through), blueish-green mineral. It is not common and can be valuable in finer grades. It has been prized as a gem and ornamental stone for thousands of years because of its interesting coloring.
The word 'turquoise' means Turkish in French.
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| Forms | |
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| Making | | People | |
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| Processes |
- Carving
- Casting
- centrifugal
- lost-wax
- vacuum
- Enameling
- Engraving
- Filigree
- Kazaziye
- Metal clay
- Plating
- Polishing
- Repoussé and chasing
- Soldering
- Stonesetting
- Wire sculpture
- Wire wrapped jewelry
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| Tools | |
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| Materials | | Precious metals | |
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| Precious metal alloys | |
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| Base metals | |
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| Mineral gemstones | |
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| Organic gemstones | |
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| Other natural objects |
- Bezoar
- Bog-wood
- Ebonite (vulcanite)
- Gutta-percha
- Hair
- Shell
- Toadstone
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| Terms |
- Art jewelry
- Carat (mass)
- Carat (purity)
- Finding
- Fineness
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