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: |
42175 Time(s) |

|
Mineral: | Becquerelite with Schoepite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42231 Time(s) |

|
Mineral: | Schoepite on Becquerelite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42306 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: |
42119 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: |
42101 Time(s) |

|
Mineral: | Dewindtite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
42034 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: |
41912 Time(s) |

|
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41857 Time(s) |

|
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41929 Time(s) |

|
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41880 Time(s) |

|
Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41987 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: |
41729 Time(s) |

|
Description: |
|
Viewed: |
41742 Time(s) |

|
Description: |
ex-Belgian Congo Geography as it was taught in the 40s-50s. |
|
Viewed: |
41773 Time(s) |

|
Description: |
|
Viewed: |
41799 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: |
41602 Time(s) |

|
Mineral: | Cuprite |
Locality: | Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41635 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: |
41618 Time(s) |

|
Mineral: | Chalcocite |
Locality: | Kipushi, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41606 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: |
41617 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: |
41590 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: |
41583 Time(s) |

|
Mineral: | Libethenite |
Locality: | M'sesa Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41669 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: |
41564 Time(s) |

|
Mineral: | Smithsonite |
Locality: | Kipushi Mine, Kipushi, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41604 Time(s) |

|
Mineral: | Shattuckite |
Locality: | Tantara Mine, Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41667 Time(s) |

|
Mineral: | Plancheite |
Locality: | Shangulowé Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41576 Time(s) |

|
Mineral: | Calcite |
Locality: | Kipushi, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41581 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: |
41484 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
with uranophane on uraninite |
|
Viewed: |
41526 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41411 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41434 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41382 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41393 Time(s) |

|
Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41423 Time(s) |

|
Mineral: | Uranophane |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41569 Time(s) |

|
Description: |
|
Viewed: |
41385 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: |
41304 Time(s) |

|
Mineral: | Bornite |
Locality: | Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
41312 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: |
41272 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: |
41262 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: |
41276 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: |
41203 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: |
41275 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: |
41184 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: |
41241 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: |
41215 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: |
41196 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: |
41231 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: |
41145 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: |
39425 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: |
39041 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: |
38975 Time(s) |

|
Mineral: | Torbernite, Saleeite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38996 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: |
38928 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: |
38923 Time(s) |

|
Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38937 Time(s) |

|
Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire) |  |
|
Description: |
|
Viewed: |
38886 Time(s) |

|
|
|
Back to top |
|
 |
|