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Does anybody have a clue? Cornwallite?
  
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Steve Maslansky




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PostPosted: Oct 09, 2020 13:32    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

Does anybody have a clue for the little dark green balls? Cornwallite?


M851.jpg
 Mineral: Liroconite on quartz with chalcophyllite and?
 Locality:
Wheal Gorland, Gwennap, Saint Day, Redruth, Cornwall, England / United Kingdom
 Dimensions: 5.5 cm
 Description:
 Viewed:  1646 Time(s)

M851.jpg


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Bob Morgan




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PostPosted: Oct 09, 2020 14:12    Post subject: Re: Does anybody have a clue? Cornwallite?  

In the photos of of liroconite two have dark blue clinoclase from that locality.
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Steve Maslansky




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PostPosted: Oct 09, 2020 14:34    Post subject: Re: Does anybody have a clue? Cornwallite?  

Thanks, Bob. That was an original thought of mine, but under a microscope (sorry can't do photos), the color and habit doesn't look right for clinoclase, its dark green with no hint of blue. The core (one ball is broken) is a pale green.
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Don Lum




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PostPosted: Oct 09, 2020 15:07    Post subject: Re: Does anybody have a clue? Cornwallite?  

Steve, that is a really nice Liroconite.

Take care.

Don

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Steve Maslansky




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PostPosted: Oct 09, 2020 15:34    Post subject: Re: Does anybody have a clue? Cornwallite?  

Thank you Don, Hope all is well. Steve
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Sante Celiberti




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PostPosted: Oct 09, 2020 15:41    Post subject: Re: Does anybody have a clue? Cornwallite?  

Steve Maslansky wrote:
Does anybody have a clue for the little dark green balls? Cornwallite?


This locality provides radiated balls of Olivenite, often associated with Liroconite.
The color would seem more consistent than Cornwallite; in any case the specimen is in your hands...

Best regards.
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Bob Morgan




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PostPosted: Oct 09, 2020 15:46    Post subject: Re: Does anybody have a clue? Cornwallite?  

Sorry, I was looking for the wrong color.
I searched by locality and got a mineral list for Wheal Gorland. From that list I found olivenite and looked at the photos. It does make dark green acicular sprays and does so with liroconite.
Your specimen, though is better than in any photos. Wow!
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Steve Maslansky




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PostPosted: Oct 09, 2020 16:20    Post subject: Re: Does anybody have a clue? Cornwallite?  

Thank you Sante and Bob, I appreciate the feedback.
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