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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Dec 07, 2017 01:22 Post subject: Minerals of DR Congo, Katanga. |
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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), Congo DR (Zaire) |  |
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Mineral: | Becquerelite with Schoepite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14891 Time(s) |

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Mineral: | Schoepite on Becquerelite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14911 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Dec 08, 2017 10:45 Post subject: Re: Minerals of DR Congo, Katanga. |
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Selenian barite
Mineral: | Barite (variety selenian baryte) |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14790 Time(s) |

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Roger Warin

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Posts: 894



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Posted: Dec 08, 2017 11:01 Post subject: Re: Minerals of DR Congo, Katanga. |
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Dewindtite - hydrated phosphate of uranyl and lead.
yellow canary tablets.
No fluorescence.
Mineral: | Dewindtite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14787 Time(s) |

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Mineral: | Dewindtite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14742 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Dec 09, 2017 15:38 Post subject: Re: Minerals of DR Congo, Katanga. |
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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, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14612 Time(s) |

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Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14589 Time(s) |

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Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14611 Time(s) |

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Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14597 Time(s) |

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Mineral: | Pseudomalachite |
Locality: | Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14621 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Dec 11, 2017 09:40 Post subject: Re: Minerals of DR Congo, Katanga. |
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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.”
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PALAIS DES CONGRES LIEGE, Belgium and the river "Meuse". |
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ex-Belgian Congo Geography as it was taught in the 40s-50s. |
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14476 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Dec 13, 2017 13:53 Post subject: Re: Minerals of DR Congo, Katanga. |
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National Museum of Natural History of Luxembourg
Mineral: | Copper |
Locality: | Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14316 Time(s) |

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Mineral: | Cuprite |
Locality: | Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14335 Time(s) |

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Mineral: | Carrollite |
Locality: | Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14306 Time(s) |

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Mineral: | Chalcocite |
Locality: | Kipushi, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14311 Time(s) |

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Roger Warin

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Posts: 894



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Posted: Dec 13, 2017 15:58 Post subject: Re: Minerals of DR Congo, Katanga. |
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National Museum of Natural History of Luxembourg
Mineral: | Copper on Calcite (variety cobaltoan calcite) |
Locality: | Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14309 Time(s) |

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Mineral: | Calcite (variety cobaltoan calcite) |
Locality: | Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14287 Time(s) |

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Mineral: | Quartz (variety amethyst) with Calcite (variety cobaltoan calcite) |
Locality: | Kambove District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14286 Time(s) |

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Mineral: | Libethenite |
Locality: | M'sesa Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14318 Time(s) |

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Mineral: | Malachite and Chrysocolle |
Locality: | L'Etoile du Congo Mine (Star of the Congo Mine), Lubumbashi (Elizabethville), Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14277 Time(s) |

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Mineral: | Smithsonite |
Locality: | Kipushi Mine, Kipushi, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14303 Time(s) |

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Mineral: | Shattuckite |
Locality: | Tantara Mine, Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14295 Time(s) |

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Mineral: | Plancheite |
Locality: | Shangulowé Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14275 Time(s) |

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Mineral: | Calcite |
Locality: | Kipushi, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14277 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Dec 14, 2017 22:46 Post subject: Re: Minerals of DR Congo, Katanga. |
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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), Congo DR (Zaire) |  |
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Description: |
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14159 Time(s) |

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Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
with uranophane on uraninite |
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14154 Time(s) |

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Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14145 Time(s) |

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Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14176 Time(s) |

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Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14143 Time(s) |

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Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14139 Time(s) |

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Mineral: | Fourmarierite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14160 Time(s) |

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Mineral: | Uranophane |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14160 Time(s) |

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14172 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Dec 16, 2017 09:45 Post subject: Re: Minerals of DR Congo, Katanga. |
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MNHN Luxembourg
Mineral: | Baryte |
Locality: | Shangulowé Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
with Malachite and chrysocolle |
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14052 Time(s) |

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Mineral: | Bornite |
Locality: | Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14067 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Dec 16, 2017 11:45 Post subject: Re: Minerals of DR Congo, Katanga. |
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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, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14028 Time(s) |

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Mineral: | Kamatoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
with astrocyanite-(Ce) and uranophane |
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14007 Time(s) |

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Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
with astrocyanite-(Ce) and uranophane |
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14040 Time(s) |

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Mineral: | Kamatoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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13983 Time(s) |

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Mineral: | Kamatoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14010 Time(s) |

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Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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13997 Time(s) |

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Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
with a "labelliforme" habit, i.e. fan-shaped |
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14012 Time(s) |

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Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14007 Time(s) |

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Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14002 Time(s) |

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Mineral: | Kamotoïte |
Locality: | Kamoto East Open cut, Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14023 Time(s) |

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Roger Warin

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Posts: 894



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Posted: Dec 16, 2017 15:06 Post subject: Re: Minerals of DR Congo, Katanga. |
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It may be useful to locate mines on a map of Kolwezi area, Katanga.
Description: |
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13965 Time(s) |

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Roger Warin

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Posts: 894



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Posted: Feb 12, 2018 05:51 Post subject: Re: Minerals of DR Congo, Katanga. |
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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), Congo DR (Zaire) |  |
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Description: |
with curienite, curite, torbernite |
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12182 Time(s) |

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Roger Warin

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Posts: 894



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Posted: Feb 16, 2018 00:07 Post subject: Re: Minerals of DR Congo, Katanga. |
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Another aspect of curienite. Crystals are never seen in Mounana mine.
Mineral: | Curienite, Dumontite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11806 Time(s) |

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Roger Warin

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Posts: 894



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Posted: Feb 16, 2018 00:37 Post subject: Re: Minerals of DR Congo, Katanga. |
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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), Congo DR (Zaire) |  |
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Description: |
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11792 Time(s) |

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Mineral: | Torbernite, Saleeite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11769 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Feb 16, 2018 01:34 Post subject: Re: Minerals of DR Congo, Katanga. |
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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), Congo DR (Zaire) |  |
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Description: |
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11755 Time(s) |

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Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11762 Time(s) |

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Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11739 Time(s) |

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Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11775 Time(s) |

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Mineral: | Torbernite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11753 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Feb 16, 2018 01:48 Post subject: Re: Minerals of DR Congo, Katanga. |
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Saleeite
Mineral: | Saleeite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11729 Time(s) |

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Roger Warin

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Posts: 894



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Posted: Feb 16, 2018 04:12 Post subject: Re: Minerals of DR Congo, Katanga. |
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Hi,
Two minerals in one Crystal !
Wyartite is black-purple in color. But it deteriorates superficially by decarboxylation into yellow epi-ianthinite (variety of schoepite).
Wyartite is the hydroxy carbonate of uranyl, copper and uranium.
Mineral: | Wyartite |
Locality: | Tantara Mine, Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11732 Time(s) |

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Mineral: | Wyartite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11708 Time(s) |

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Mineral: | Wyartite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11734 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Feb 20, 2018 09:07 Post subject: Re: Minerals of DR Congo, Katanga. |
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Hi,
Gold on uraninite is well known in Shinkolobwe.
Mineral: | Gold on Uraninite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11322 Time(s) |

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Mineral: | Gold on Uraninite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11341 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Feb 20, 2018 09:35 Post subject: Re: Minerals of DR Congo, Katanga. |
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Hi
Here are extremely rare minerals.
The first is kolbeckite, scandium phosphate.
Scandium and yttrium are considered rare-earth elements because they tend to occur often in the same ore deposits as the lanthanides and exhibit similar chemical properties
Mineral: | Kolbeckite |
Locality: | Kamoto, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11317 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
Posts: 894



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Posted: Feb 20, 2018 16:40 Post subject: Re: Minerals of DR Congo, Katanga. |
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Hi,
Sharpite is a rare hydroxycarbonate of uranyl and copper with radially fibrous crust.
Black dots are heteogenite.
Mineral: | Sharpite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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11239 Time(s) |

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