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14 May-17:16:14 The mizunaka collection - rhodochrosite (Am Mizunaka)
14 May-16:06:46 Franklinite from sterling mine, usa / mvm (minerals - virtual museum) collection (Jordi Fabre)
13 May-08:04:35 Re: collection of michael shaw - wulfenite from the type locality (Michael Shaw)
12 May-20:33:12 The mizunaka collection - beryl (Am Mizunaka)
12 May-13:48:03 Rhodonite from san martín mine, peru / mvm (minerals - virtual museum) collection (Jordi Fabre)
12 May-04:20:26 Collection of carles millan: calcite from la cuerre mine (Carles Millan)
11 May-16:20:39 Re: the mizunaka collection (Am Mizunaka)
11 May-13:35:54 Phenakite with fluorite from huanggang, china / mvm (minerals - virtual museum) collection (Jordi Fabre)
11 May-01:43:24 Re: the mizunaka collection (Dany Mabillard)
10 May-16:55:47 Uvarovite from outokumpu, finland / mvm (minerals - virtual museum) collection (Jordi Fabre)
09 May-13:23:43 Re: collection of volkmar stingl (Volkmar Stingl)
08 May-17:32:48 Re: quartz twins (Bob Morgan)
07 May-23:40:44 Re: quartz twins (Herwig)
07 May-17:07:55 The mizunaka collection - smoky quartz (Am Mizunaka)
07 May-15:10:39 Re: quartz twins (Roger Warin)
07 May-14:13:54 Re: collection of michael shaw (James Catmur)
07 May-10:22:14 Re: collection of michael shaw - quartz ps. After barite (Michael Shaw)
07 May-09:39:53 Re: quartz twins (Bob Carnein)
07 May-08:22:46 Re: quartz twins (Pete Richards)
06 May-23:47:28 Re: collection of volkmar stingl (Volkmar Stingl)
06 May-15:58:27 Tricolour tourmaline from madagascar / mvm (minerals - virtual museum) collection (Jordi Fabre)
06 May-15:25:14 Re: carlos pareja photo collection (Carlos Pareja)
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06 May-09:58:11 Re: the mim museum in beirut, lebanon (Mim Museum)
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The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
Tsumeb Unknown
  
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cfrench58




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PostPosted: Apr 19, 2024 11:39    Post subject: Tsumeb Unknown  
While doing some close-in macro photography on this old Tsumeb Calcite with Duftite specimen, I noticed a bow-tie mineral which I am having a hard time identifying. It fluoresces a strong deep orange @ 365 nm (sorry no photo). I was thinking perhaps aragonite but I thought I might get some knowledgeable feedback from the Tsumeb experts in the forum. Thanks in advance!

Capture.JPG
 Mineral: Unknown, Calcite, Duftite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: FOV 3 x 5 mm
 Description:
 Viewed:  3874 Time(s)

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Roger Warin




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PostPosted: Apr 19, 2024 13:49    Post subject: Re: Tsumeb Unknown  
I propose cerussite. You can't see the crystals well.
I doubt duftite.
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Jordi Fabre
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PostPosted: Apr 19, 2024 13:49    Post subject: Re: Tsumeb Unknown  
Almost certainly Mimetite, its fluorescence, as well as its appearance, indicates it.
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cfrench58




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PostPosted: Apr 19, 2024 14:43    Post subject: Re: Tsumeb Unknown  
Thanks Jordi! I would not have thought of that, makes perfect sense.
-C
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