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| PMC Supply.com Colorfast Chart |
Kiln
PMC3 1110˚F 45 Min |
Kiln
PMC+ 1470˚F 30 Min |
Kiln
PMC Stan 1650˚F 2 hrs |
Kiln
PMC Gold 1830˚F 2 hrs |
Torch
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Hot Pot
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| Hematite |
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| Clear CZ |
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Amethyst CZ
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| Emerald CZ |
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| Tanzanite CZ |
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| Perdiot CZ |
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| Aquamarine Spinel* |
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| Blue Topaz Spinel* |
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| Blue Sapphire Corundum* |
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| Yellow Sapphire Corundum* |
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| Red Ruby Corundum* |
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| Light Pink Corundum* |
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| Dichroic Glass Cabs |
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| Freshwater Pearls |
DO NOT FIRE!
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The chart above indicates what you can generally expect to remain "colorfast" when fired, with little or no color shift, though there can always be exceptions, especially with colored CZ. The reason for this is the instability of the minerals used to create various colors. As we add compatible synthetic and natural gemstones, we will add them to the chart.
*Spinel and Corundum stones are lab grown
†Slight color shift may occur.