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Roger Warin

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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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14854 Time(s) |

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Mineral: | Schoepite on Becquerelite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14875 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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14754 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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Mineral: | Dewindtite |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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14706 Time(s) |

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Roger Warin

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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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14576 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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14553 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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14575 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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14561 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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14585 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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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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Description: |
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14280 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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14299 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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Description: |
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14270 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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14275 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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14272 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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14251 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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14249 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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14281 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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14241 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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14267 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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14258 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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14239 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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14241 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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14122 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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14118 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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14109 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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14140 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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14107 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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14103 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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14124 Time(s) |

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Mineral: | Uranophane |
Locality: | Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire) |  |
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Description: |
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14124 Time(s) |

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14135 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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14016 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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14031 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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Description: |
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13992 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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13971 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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14004 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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13947 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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13974 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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13961 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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13976 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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13971 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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13966 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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13987 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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13928 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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12146 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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11767 Time(s) |

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Roger Warin

Joined: 23 Jan 2013
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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11756 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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11732 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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11719 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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Viewed: |
11725 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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Viewed: |
11701 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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11717 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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11693 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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11696 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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11672 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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11697 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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11286 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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11305 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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11280 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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11202 Time(s) |

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