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cfrench58
Joined: 04 Aug 2021
Posts: 6
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 Posted: Dec 10, 2022 16:12 Post subject: Unknown from Kabolela Mine, DRC in association with Brochantite and Heterogenite |
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Hello, I am hoping that someone might be able to identify the lilac-blue mineral coating the heterogenite in association with Brochantite in the attached photo (FOV=10x8 mm)
Thank you!
| Mineral: | Brochantite |
| Locality: | | Kabolela Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
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| Dimensions: | FOV=10 x 8 mm |
| Description: |
| Closest image I could find in Mindat is Photo ID 1116586 |
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1991 Time(s) |
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Matt_Zukowski
Site Admin
Joined: 10 Apr 2009
Posts: 699
Location: Alaska
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| Posted: Dec 11, 2022 03:04 Post subject: Re: Unknown from Kabolela Mine, DRC in association with Brochantite and Heterogenite |
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| Tough one. Perhaps you already thought about Chrysocolla, which can be kind of blue and earthy and is reported to be from there, but that is just a guess. And there certainly are many greenish/blueish secondary Cu minerals. Perhaps someone with first hand knowledge of the locality can weigh in. Or maybe you will need to get it analyzed.
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4833
Location: Barcelona
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| Posted: Dec 11, 2022 10:02 Post subject: Re: Unknown from Kabolela Mine, DRC in association with Brochantite and Heterogenite |
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| Matt_Zukowski wrote: | | Tough one. Perhaps you already thought about Chrysocolla, which can be kind of blue and earthy and is reported to be from there, but that is just a guess. And there certainly are many greenish/blueish secondary Cu minerals. Perhaps someone with first hand knowledge of the locality can weigh in. Or maybe you will need to get it analyzed. |
Absolutely right but having ordered analysis of other samples from this mine I would recommend Plancheite for this one.
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Roger Warin
Joined: 23 Jan 2013
Posts: 1116
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| Posted: Dec 11, 2022 10:57 Post subject: Re: Unknown from Kabolela Mine, DRC in association with Brochantite and Heterogenite |
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Hello,
Given the origin, of Kabolela, I think it is either shattuckite or plancheite and certainly not chrysocolla.
But since plancheite is lighter than the more pronounced blue shattuckite, so I would say shattuckite.
fibrous habit.
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cfrench58
Joined: 04 Aug 2021
Posts: 6
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| Posted: Dec 12, 2022 17:52 Post subject: Re: Unknown from Kabolela Mine, DRC in association with Brochantite and Heterogenite |
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| Thanks everyone for taking the time to respond to my inquiry, I really appreciate it!
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