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Stefanie
Joined: 12 Feb 2021
Posts: 2
Location: Gouda
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Posted: Feb 12, 2021 08:53 Post subject: Quartz-like but not quite, help needed. |
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Good day all!,
My name is Stefanie, I'm a low-key collector of gems and minerals and I would like to ask for your help in determining one of my bigger pieces.
I received a part of a collection from my friend who inherited it from her grandfather and since a lot of the labels had been thrown out (oops), neither she nor I have a clue where most of the stones are from.
At first she thought it is an amethyst but the cubic crystals tell me otherwise. I also did the scratch test and I can scratch it with a knife but not copper, so the hardness should be 5 or 6.
The crystals themselves appear a bit dull mostly, as if there was something sprayed over them, but then other pieces adjacent have a complete smooth and shiny surface like glass so I think it's naturally formed.
Almost all crystals have a cloudy inclusion which is white/light grey and the overall colour is that of a pale amethyst.
I don't know what kind of stone the base is, but I do know it's very heavy and that it's very rich in iron since there are a lot of orange rust-like parts on it.
I really hope someone can help me determine what kind of mineral this is, I've been searching online for days now but I keep ending up with amethyst.
Thanks for helping in advance!
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vic rzonca
Joined: 18 Nov 2008
Posts: 820
Location: MA
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Posted: Feb 12, 2021 09:03 Post subject: Re: Quartz-like but not quite, help needed. |
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Fluorite.
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Stefanie
Joined: 12 Feb 2021
Posts: 2
Location: Gouda
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Posted: Feb 12, 2021 09:27 Post subject: Re: Quartz-like but not quite, help needed. |
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vic rzonca wrote: | Fluorite. |
I feel like a fool for not thinking of this any sooner... but you're absolutely right! Thank you for showing me the obvious, haha!
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1346
Location: Cambridge
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Posted: Feb 12, 2021 10:36 Post subject: Re: Quartz-like but not quite, help needed. |
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Stefanie wrote: | vic rzonca wrote: | Fluorite. |
I feel like a fool for not thinking of this any sooner... but you're absolutely right! Thank you for showing me the obvious, haha! |
Probably from northern England, as I think some of the crystals are twinned
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