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 Post subject: What “color” is this quartz?
PostPosted: Tue Jul 28, 2020 6:42 pm 
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Apologies if this is the wrong forum.

This came in a bag with a bunch of quartz. I’m 99.9% certain it’s quartz. But what would you call it, Amethyst? It’s too pink in my mind to be amethyst.


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 Post subject: Re: What “color” is this quartz?
PostPosted: Tue Jul 28, 2020 6:47 pm 
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Still amethyst. Typically amethyst has a noticeable color shift (between more pinkish and more blueish colors) as well as pleochroism (between more pinkish and more blueish colors).
Though this picture can be more complicated, since there is also an indigo-blue color variety of quartz ('blueberry quartz' though it apparently only occurs with irradiation and heat treatment so far), and mixing a bit of citrine yellow-orange in can make the color warmer.

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 Post subject: Re: What “color” is this quartz?
PostPosted: Tue Jul 28, 2020 8:07 pm 
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Here is a copy of the Pantone Purple Color Chart.
An amethyst can be any of these tones and saturations:


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 Post subject: Re: What “color” is this quartz?
PostPosted: Tue Jul 28, 2020 11:45 pm 
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Neat! It’s a Pantone 254 Amethyst!

Thanks guys - I didn’t know “amethyst” could encompass so much!


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 Post subject: Re: What “color” is this quartz?
PostPosted: Wed Jul 29, 2020 12:45 am 
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It can be surreal the first time you see one outside the super stereotypical range (part of that is a lot of cut amethysts are undisclosed synthetics so they are quite uniform). Seeing one with blue zones in particular is bizarre (though you soon find it is lighting and viewing angle dependant too).

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