Carnival Glass Colours - Amethyst and Purple
Amethyst and purple - what’s the difference? Amethyst has pink tones and is a rather light shade. Purple is a deeper colour with balanced blue and red tones. One of the main colourants was manganese. The list below goes from the lightest shades to the darkest.
Sun coloured purple – very pale, delicate purple base glass which is formed when manganese dioxide has been used as a decolourising agent in the glass batch to offset the residual iron impurities. When exposed to strong sunlight over a number of years, the trace amounts of manganese turn the glass light purple.
Lavender – a pale base colour, but the important ingredient here is the iridescence, which should be lavender in hue, although there are different schools of thought on this! Here is a detailed article on this colour: Lavender Carnival
Amethyst – is a mid tone but the pink is very obvious in it. It can also be found with an opal edge
Purple – a deep, rich, balanced blue and red. A vivid iridescence on this can be called electric.
Sun coloured purple – very pale, delicate purple base glass which is formed when manganese dioxide has been used as a decolourising agent in the glass batch to offset the residual iron impurities. When exposed to strong sunlight over a number of years, the trace amounts of manganese turn the glass light purple.
Lavender – a pale base colour, but the important ingredient here is the iridescence, which should be lavender in hue, although there are different schools of thought on this! Here is a detailed article on this colour: Lavender Carnival
Amethyst – is a mid tone but the pink is very obvious in it. It can also be found with an opal edge
Purple – a deep, rich, balanced blue and red. A vivid iridescence on this can be called electric.
Lavender. Tiger Lily, Imperial
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Amethyst. Roundup, Dugan
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Purple. Imperial Grape, Imperial
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Fiery amethyst – lots of crimson or ruby red tones – not a balanced blue+red, but more of the red. Some debate about this colour, see Controversies.
Oxblood - a similar /darker version of fiery amethyst. See Controversies.
Black amethyst – when you hold it to the light you can just see a hint of purple. Some debate, again see Controversies.
Black – no purple can be seen when held to the light.
Purple. Rex, Eda (rare colour for Eda)
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Purple, or Dark. Swan, Crown Crystal
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Black Amethyst. Gateshead, Sowerby
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