View previous topic :: View next topic |
Author |
Message |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 07, 2017 01:22 Post subject: Minerals of DR Congo, Katanga. |
|
|
About the copper-bearing crescent, referred to as the South Katanga geological scandal.
Mining centers: Shinkolobwe (U), Lubumbashi (Cu), Likasi (Cu), Kambove (Cu, Co.), Kipushi (Zn, Cu, Ge).
Mineral: | Becquerelite with Schoepite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42174 Time(s) |

|
Mineral: | Becquerelite with Schoepite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42229 Time(s) |

|
Mineral: | Schoepite on Becquerelite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42305 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 08, 2017 10:45 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Selenian barite
Mineral: | Barite (variety selenian baryte) |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42118 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 08, 2017 11:01 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Dewindtite - hydrated phosphate of uranyl and lead.
yellow canary tablets.
No fluorescence.
Mineral: | Dewindtite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42100 Time(s) |

|
Mineral: | Dewindtite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42033 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 09, 2017 15:38 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Pseudomalachite: Cu5(PO4)2(OH)4 on chrysocolla, Mashamba, Katanga.
Monoclinic crystals of pseudomalachite are very rare in Congo.
The macrophoto shows well the hillocky appearance, dark green to dark gray.
Under the microscope, the fine texture appears.
Aggregates of acicular crystals, reflective laterally.
Gray tint. Some parts, whose green colored ends, would correspond to late elongation or secondary growth of pseudomalachite microcrystals.
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41911 Time(s) |

|
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41856 Time(s) |

|
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41928 Time(s) |

|
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41879 Time(s) |

|
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41986 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 11, 2017 09:40 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Liege Intermineral Expo 4-5 November 2017.
A nice exhibition was in Liège (Belgium), Palais des Congrès, along the river "Meuse". 4 institutions or collectors participated:
National Museum of Natural History of Luxembourg, Dr. Simon Philippo.
Laboratory of Mineralogy - University of Liege, Prof. Frédéric Hatert.
Francis Coune and Valère Berlage.
Rare and nice specimens were presented.
Since the theme was Congo, I will place the photos of the specimens in the post "Minerals of D.R. Congo.”
Description: |
PALAIS DES CONGRES LIEGE, Belgium and the river "Meuse". |
|
Viewed: |
41728 Time(s) |

|
Description: |
|
Viewed: |
41741 Time(s) |

|
Description: |
ex-Belgian Congo Geography as it was taught in the 40s-50s. |
|
Viewed: |
41772 Time(s) |

|
Description: |
|
Viewed: |
41798 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 13, 2017 13:53 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
National Museum of Natural History of Luxembourg
Mineral: | Copper |
Locality: | Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41601 Time(s) |

|
Mineral: | Cuprite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41634 Time(s) |

|
Mineral: | Carrollite |
Locality: | Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41616 Time(s) |

|
Mineral: | Chalcocite |
Locality: | Kipushi, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41605 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 13, 2017 15:58 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
National Museum of Natural History of Luxembourg
Mineral: | Copper on Calcite (variety cobaltoan calcite) |
Locality: | Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41615 Time(s) |

|
Mineral: | Calcite (variety cobaltoan calcite) |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41589 Time(s) |

|
Mineral: | Quartz (variety amethyst) with Calcite (variety cobaltoan calcite) |
Locality: | Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41582 Time(s) |

|
Mineral: | Libethenite |
Locality: | M'sesa Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41667 Time(s) |

|
Mineral: | Malachite and Chrysocolle |
Locality: | L'Etoile du Congo Mine, Lubumbashi (Elizabethville), Katanga Copper Crescent, Haut-Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41563 Time(s) |

|
Mineral: | Smithsonite |
Locality: | Kipushi Mine, Kipushi, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41603 Time(s) |

|
Mineral: | Shattuckite |
Locality: | Tantara Mine, Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41666 Time(s) |

|
Mineral: | Plancheite |
Locality: | Shangulowé Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41575 Time(s) |

|
Mineral: | Calcite |
Locality: | Kipushi, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41580 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 14, 2017 22:46 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Professor of Geology Paul FOURMARIER (1877-1970)-
University of Liège, inventor of microtectonics.
(bronze plate).
Fourmarierite and some minerals
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41483 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
with uranophane on uraninite |
|
Viewed: |
41525 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41409 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41432 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41381 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41392 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41422 Time(s) |

|
Mineral: | Uranophane |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41568 Time(s) |

|
Description: |
|
Viewed: |
41384 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 16, 2017 09:45 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
MNHN Luxembourg
Mineral: | Baryte |
Locality: | Shangulowé Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
with Malachite and chrysocolle |
|
Viewed: |
41303 Time(s) |

|
Mineral: | Bornite |
Locality: | Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41309 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 16, 2017 11:45 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Kamotoite, Kamoto East Open cut, Kolwezi, Katanga.
Relatively recent mineral, described in 1986 (Deliens and Piret).
Kamotoite-(Y) = Y2(UO2)4(CO3)3O4.14H2O
Hydrated Carbonate of Uranyl and Rare Earth.
Transparent slats of lemon yellow color. Tip termination, 35 ° angle.
Dehydrated, the kamotoite becomes opaque.
Mineral: | Kamatoïte |
Locality: | Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41271 Time(s) |

|
Mineral: | Kamatoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
with astrocyanite-(Ce) and uranophane |
|
Viewed: |
41261 Time(s) |

|
Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
with astrocyanite-(Ce) and uranophane |
|
Viewed: |
41275 Time(s) |

|
Mineral: | Kamatoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41202 Time(s) |

|
Mineral: | Kamatoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41273 Time(s) |

|
Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41182 Time(s) |

|
Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
with a "labelliforme" habit, i.e. fan-shaped |
|
Viewed: |
41240 Time(s) |

|
Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41214 Time(s) |

|
Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41195 Time(s) |

|
Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41230 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Dec 16, 2017 15:06 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
It may be useful to locate mines on a map of Kolwezi area, Katanga.
Description: |
|
Viewed: |
41144 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Feb 12, 2018 05:51 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Hello,
It's time to show you some rarities from Katanga (Shinkolobwe).
The first specimen is 1 cm wide.
We find on a background of poorly crystallized torbernite, tan needles of dumontite, red curite and geld curienite. FOV = 3 mm.
This is the only sample on which the curienite was analyzed in Katanga. This mineral is normally found in Mounana, Franceville (Gabon).
Mineral: | Dumontite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
with curienite, curite, torbernite |
|
Viewed: |
39423 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Feb 16, 2018 00:07 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Another aspect of curienite. Crystals are never seen in Mounana mine.
Mineral: | Curienite, Dumontite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
39040 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Feb 16, 2018 00:37 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Hi,
Here the expansion of the torbernites area. The elongation of the torbernite crystals is rather unusual. This habitus is found at Shinkolobwe.
The saleeiteite can carry in Shinkolobwe an epitaxy of torbernite, but on this sample, these crystals are too small to be discerned. The sample size was too big for a larger magnification.
Note the unusual elongated prismatic crystallization of the torbernite crystals.
Mineral: | Torbernite, Saleeite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38974 Time(s) |

|
Mineral: | Torbernite, Saleeite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38995 Time(s) |

|
|
|
Back to top |
|
 |
Roger Warin

Joined: 23 Jan 2013
Posts: 1239



|
Posted: Feb 16, 2018 01:34 Post subject: Re: Minerals of DR Congo, Katanga. |
|
|
Hi,
About epitaxy.
Another sample of saleeite / torbernite was photographed in 2015. I add some photos showing the epitaxy of the torbernite on the saleeite.
From Dal Bo Fabrice’s thesis (Mineralogy and crystal chemistry of natural and synthetic uranyl oxysalts) and Coll. S. Puccio.
Mineral: | Saleeite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38927 Time(s) |

|
Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38935 Time(s) |

|
Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38922 Time(s) |

|
Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38936 Time(s) |

|
Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38885 Time(s) |

|
|
|
Back to top |
|
 |
|