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Posted by: Raymond McDougall on 04.06.2017 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve posted some new specimens in this Peru Update (click here). These include hubnerite, alabandite, clinoatacamite, quartz/chrysocolla, chalcopyrite, spinel-twinned galena, proustite and top quality pyrite. Some of these were collected recently and some go back a few years.

 Hubnerite on Quartz, Mundo Nuevo Mine, Huamachuco, Sanchez Carrion Province, La Libertad Dept., PeruHubnerite on Quartz, Mundo Nuevo Mine, Huamachuco, Sanchez Carrion Province, La Libertad Dept., Peru
Field of view 3.5 cm

Pyrite on Quartz, Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru

Pyrite on Quartz, Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru
Field of view 3.5 cm

Alabandite, Uchucchacua Mine, Oyon Province, Lima Dept., Peru

Alabandite, Uchucchacua Mine, Oyon Province, Lima Dept., Peru – 8.7 cm

Prousite, Uchucchacua Mine, Oyon Province, Lima Dept., Peru

Prousite, Uchucchacua Mine, Oyon Province, Lima Dept., Peru
Field of view 1.5 cm

Galena (spinel-law-twinned), Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru

Galena (spinel-law-twinned), Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru
Field of view

Pyrite, Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru

Pyrite, Huanzala Mine, Huallanca District, Dos de Mayo Province, Huanuco Dept., Peru
5.0 cm across, in this orientation

Chalcopyrite, Quartz, Animon Mine, Huaron District, Pasco Dept., Peru

Chalcopyrite, Quartz, Animon Mine, Huaron District, Pasco Dept., Peru – 5.0 cm

Atacamite, Lily Mine, Pisco Umay, Ica Dept., PeruAtacamite, Lily Mine, Pisco Umay, Ica Dept., Peru
Field of view

Clinoatacamite, Malachite, Lily Mine, Pisco Umay, Ica Dept., Peru

Clinoatacamite with Malachite, Lily Mine, Pisco Umay, Ica Dept., Peru
Field of view 1.1 cm

Clinoatacamite on Quartz,  Lily Mine, Pisco Umay, Ica Dept., Peru

Clinoatacamite on Quartz, Lily Mine, Pisco Umay, Ica Dept., Peru
Crystal group 0.4 cm

Quartz, Chrysocolla, Malachite, Lily Mine, Pisco Umay, Ica Dept., Peru

Quartz on Chrysocolla and Malachite, Lily Mine, Pisco Umay, Ica Dept., Peru
Field of view

Quartz, Chrysocolla, Malachite, Lily Mine, Pisco Umay, Ica Dept., Peru

Quartz on Chrysocolla and Malachite, Lily Mine, Pisco Umay, Ica Dept., Peru – 5.5 cm

Posted by: Raymond McDougall on 01.14.2017 | Filed under: Latest, Recent Mineral Updates | Comments (0)

I’ve posted some beautiful new specimens in this Morocco Update (click here).  The pieces include azurite from Kerrochen and Bou Beker, vanadinite from Taouz, pyrite-coated fluorite from El Hammam, purple fluorite from Tounfit, twinned cerussite from Mibladen and quartz on siderite from Gourrama.

Azurite, Kerrouchen, Khenifra Province, Morocco
Azurite, Kerrouchen, Khenifra Province, Morocco
Crystal 2.5 cm

Azurite, Kerrouchen, Khenifra Province, Morocco

Azurite, Kerrouchen, Khenifra Province, Morocco
Crystal 3.1 cm

Azurite, Bou Beker, Touissit-Bou Beker District, Jerada Province, Morocco

Azurite, Bou Beker, Touissit – Bou Beker District, Jerada Province, Morocco – 9.7 cm

Azurite with Malachite, Bou Beker, Touissit - Bou Beker District, Jerada Province, Morocco

Azurite with Malachite, Bou Beker, Touissit – Bou Beker District, Jerada Province, Morocco – 6.3 cm

Vanadinite, Taouz, Er Rachidia Province, Morocco

Vanadinite, Taouz, Er Rachidia Province, Morocco – 5.2 cm

Fluorite coated with Pyrite, El Hammam Mine, Meknes, Meknes-Tafilalet Region, Morocco

Fluorite coated with Pyrite, El Hammam Mine, Meknes, Meknes-Tafilalet Region, Morocco – 6.0 cm

Fluorite coated with Pyrite, El Hammam Mine, Meknes, Meknes-Tafilalet Region, Morocco

Fluorite coated with Pyrite, El Hammam Mine, Meknes, Meknes-Tafilalet Region, Morocco – 4.2 cm

Cerussite with Barite, Les Dalles Mine, Mibladen Mining District, Midelt, Khenifra Province, Morocco

Cerussite with Barite, Les Dalles Mine, Mibladen Mining District, Midelt, Khenifra Province, Morocco
Field of view 2.0 cm

Fluorite, Tounfit, Boumia, Khenifra Province, Morocco

Fluorite, Tounfit, Boumia, Khenifra Province, Morocco
Field of view 4.0 cm

Fluorite, Tounfit, Boumia, Khenifra Province, Morocco

Fluorite, Tounfit, Boumia, Khenifra Province, Morocco
Field of view 3.5 cm

Fluorite, Tounfit, Boumia, Khenifra Province, Morocco

Fluorite, Tounfit, Boumia, Khenifra Province, Morocco
Field of view 2.0 cm

Fluorite, Tounfit, Boumia, Khenifra Province, Morocco

Fluorite, Tounfit, Boumia, Khenifra Province, Morocco
Field of view 3.0 cm

Quartz, Siderite, Gourrama, Er Rachidia, Morocco

Quartz, Siderite, Gourrama, Er Rachidia, Morocco
Crystal 3.2 cm

Posted by: Raymond McDougall on 07.17.2016 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve posted a small number of beautiful atacamite specimens in this new Peru Atacamite Update (click here). These are sharp, lustrous, terminated atacamite crystals in vugs, from the Lily Mine, near Pisco, Ica. Many of the smaller crystals are transparent and intense green. One piece in the Update features a water-clear selenite crystal perched on perfect atacamite crystals. Other minerals in the update include quartz-covered chrysocolla, malachite on quartz and a green quartz (with dioptase inclusions).

Atacamite, Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru

Atacamite, Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru
Field of view 3.0 cm

Atacamite, Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru

Atacamite, Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru
Field of view 1.5 cm

Atacamite, Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru

 Atacamite, Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru – 7.0 cm

Atacamite, Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru

Atacamite, Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru – 7.3 cm

Gypsum (var. selenite) on Atacamite, Lily Mine, Pisco Umay, Ica Dept., Peru Gypsum (var. selenite) on Atacamite, Lily Mine, Pisco Umay, Ica Dept., Peru
Field of view 2.0 cm

Atacamite on Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru

Atacamite on Chrysocolla, Lily Mine, Pisco Umay, Ica Dept., Peru
Field of view 3.0 cm

Calcite, Chrysocolla, Atacamite, Quartz, Lily Mine, Pisco Umay, Ica Dept., Peru

Calcite on quartz-covered chrysocolla with atacamite, Lily Mine, Pisco Umay, Ica Dept., Peru – 6.4 cm

Malachite, quartz, Lily Mine, Pisco Umay, Ica Dept., Peru

Malachite, quartz, Lily Mine, Pisco Umay, Ica Dept., Peru – 4.0 cm

Quartz with dioptase, Carbonera Mine, Nazca, Ica, Peru

Quartz with dioptase, Carbonera Mine, Nazca, Ica, Peru – 7.5 cm

Posted by: Raymond McDougall on 04.07.2016 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve added a few colourful new specimens in this Morocco Update (click here).  This update includes some particularly fine and unusual pieces, including a super azurite-malachite from the Tasalart Mine, Tafraout, exceptional fluorites from Sidi Said, hot pink cobaltoan dolomites, a glowing jewel of a cobaltoan calcite from the Agoudal Mine in the Bou Azzer district, a mirror-bright skutterudite from the Bouismas Mine and a beautiful, classic twinned cerussite from Touissit.

Azurite and malachite pseudomorphs after azurite, Tazalart Mine, Tafraout, Tiznit Province, Morocco

 Azurite and malachite pseudomorphs after azurite, Tazalart Mine, Tafraout, Tiznit Province, Morocco
Field of view 4.5 cm

Fluorite, Chebka Sidi Said, Midelt, Khenifra Province, Morocco

Fluorite, Chebka Sidi Said, Midelt, Khenifra Province, Morocco – 4.o cm

 Fluorite, Chebka Sidi Said, Midelt, Khenifra Province, Morocco

Fluorite with quartz, Chebka Sidi Said, Midelt, Khenifra Province, Morocco – 5.2 cm

Dolomite, var. cobaltoan dolomite, Agoudal Mine, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco

Dolomite, var. cobaltoan dolomite, Agoudal Mine, Bou Azzer District
Tazenakht, Ouarzazate Province, Morocco – 5.7 cm

Dolomite, var. cobaltoan dolomite, Agoudal Mine, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco

Dolomite, var. cobaltoan dolomite, Agoudal Mine, Bou Azzer District
Tazenakht, Ouarzazate Province, Morocco
Field of view – 3.0 cm

Calcite, var. cobaltoan calcite, Agoudal Mine, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco

Calcite, var. cobaltoan calcite, Agoudal Mine, Bou Azzer District
Tazenakht, Ouarzazate Province, Morocco – 13.7 cm

Calcite, var. cobaltoan calcite, Agoudal Mine, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco

Calcite, var. cobaltoan calcite, Agoudal Mine, Bou Azzer District,
Tazenakht, Ouarzazate Province, Morocco
Field of view 2.2 cm

Calcite, var. cobaltoan calcite, Agoudal Mine, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco

Calcite, var. cobaltoan calcite, Agoudal Mine, Bou Azzer District
Tazenakht, Ouarzazate Province, Morocco
Field of view – 3.0 cm

Calcite, var. cobaltoan calcite, Agoudal Mine, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco

Calcite, var. cobaltoan calcite, Agoudal Mine, Bou Azzer District
Tazenakht, Ouarzazate Province, Morocco
Field of view – 2.5 cm

Skutterudite, Bouismas Mine, Bou Azzer District, Tazenakht, Ouarzazate Province, Morocco

Skutterudite, Bouismas Mine, Bou Azzer District
Tazenakht, Ouarzazate Province, Morocco
Field of view – 2.5 cm

Quartz on Chalcedony, Sidi Rahal, El Kelaa des Sraghna Province, Morocco

Quartz on Chalcedony, Sidi Rahal, El Kelaa des Sraghna Province, Morocco
Field of view – 3.0 cm

Quartz var. Amethyst, Sidi Rahal, El Kelaa des Sraghna Province, Morocco

Quartz var. Amethyst, Sidi Rahal, El Kelaa des Sraghna Province, Morocco
Field of view – 5.0 cm

Cerussite, Touissit, Jerada Province, Oriental Region, Morocco

Cerussite, Touissit, Jerada Province, Oriental Region, Morocco – 3.1 cm

Posted by: Raymond McDougall on 02.28.2016 | Filed under: Latest, Recent Mineral Updates | Comments (0)

I’ve posted some vibrant specimens of chrysocolla pseudomorphs in the new Chrysocolla Update (click here).

Ajoite, Luputo Mine, Lubumbashi, Democratic Republic of the CongoChrysocolla, Luputo Mine, Lubumbashi, Democratic Republic of the Congo – 8.1 cm

Definitive identification of these specimens has been confirmed. The specimens from this find have been identified as chrysocolla by way of chemical analysis conducted by Dr. Hexiong Yang of the University of Arizona. A preliminary Raman spectroscopic analysis had led to the suggestion of an ajoite identification (which was posted on mindat), but the Raman for each of these minerals is very similar and was therefore inconclusive.

Ajoite, Luputo Mine, Lubumbashi, Democratic Republic of the CongoChrysocolla, Luputo Mine, Lubumbashi, Democratic Republic of the Congo – 8.7 cm

A couple of observations about these specimens lead me to believe there is some complexity to the formation history. In spots where the underlying pseudomorphs are incomplete, one can examine the cross-sections. Some of those cross-sections reveal that the malachite core is entirely gone (and seems to be chrysocolla), while others retain some malachite. In addition, upon close examination with magnification, one can see there are small malachites sprinkled about, meanwhile the chrysocolla “crystals” have a rather rounded appearance. I believe that the small chrysocolla aggregates themselves are related to the malachite, as pseudomorphs after the malachite. These specimens might in fact be “chrysocolla pseudomorphs after malachite, on chrysocolla pseudomorphs (partial and complete) after malachite pseudomorphs after azurite.” Doesn’t fit on a label so easily, but these are highly unusual and remarkable specimens.

Ajoite, Luputo Mine, Lubumbashi, Democratic of the CongoChrysocolla, Luputo Mine, Lubumbashi, Democratic Republic of the Congo
Field of view 1.0 cm

These are delicate specimens, with some growths that are thin. As a result, there are incomplete pseudomorphs on almost all I have seen – in fact some are either prominently or mostly without complete ones. These incomplete pseudomorphs actually help to guide our understanding of the specimen’s formation.

Ajoite, Luputo Mine, Lubumbashi, Democratic Republic of the CongoChrysocolla, Luputo Mine, Lubumbashi, Democratic Republic of the Congo
Field of view 1.0 cm

Ajoite, Luputo Mine, Lubumbashi, Democratic Republic of the CongoChrysocolla, Luputo Mine, Lubumbashi, Democratic Republic of the Congo – 5.8 cm

Ajoite, Luputo Mine, Lubumbashi, Democratic Republic of the CongoChrysocolla, Luputo Mine, Lubumbashi, Democratic Republic of the Congo
Field of view 1.3 cm

Posted by: Raymond McDougall on 10.17.2015 | Filed under: Latest, Recent Mineral Updates | Comments (0)

I’ve added a new USA Update (click here) with excellent specimens from various localities, most of which were collected between 25 and 50 years ago. Some of the specimens are from the collection of Robert Bartsch.

Rhodochrosite, American Tunnel  Mine , Silverton, Colorado, USARhodochrosite, American Tunnel Mine, Silverton, San Juan Co., Colorado – 12.5 cm
From the collection of Robert Bartsch

Microcline var. Amazonite with Smoky Quartz, Jack Rabbit Mine, Crystal Creek nr Crystal Peak, Lake George District, Teller Co., Colorado, USA.

Microcline var. Amazonite with Smoky Quartz, Jack Rabbit Mine, Crystal Creek near Crystal Peak,
Lake George District, Teller Co., Colorado – 5.7 cm
From the collection of Robert Bartsch

Microcline var. Amazonite with Smoky Quartz, Jack Rabbit Mine, Crystal Creek nr Crystal Peak, Lake George District, Teller Co., Colorado, USA.

Microcline var. Amazonite with Smoky Quartz, Jack Rabbit Mine, Crystal Creek near Crystal Peak,
Lake George District, Teller Co., Colorado – 4.8 cm
From the collection of Robert Bartsch

Mona Mine, Specimen Rock Area, nr Colorado Springs, El Paso Co., Colorado, USA

Microcline var. Amazonite, Mona Mine, Specimen Rock Area, near Colorado Springs,
El Paso Co., Colorado – 4.1 cm

Fluorapatite, King Lithia Mine, Greyhound Gulch, Keystone District, Pennington Co., South Dakota

Fluorapatite, King Lithia Mine, Greyhound Gulch, Keystone District, Pennington Co., South Dakota
Field of view approx. 3.5 cm
From the collection of Robert Bartsch

Fluorapatite, King Lithia Mine, Greyhound Gulch, Keystone District, Pennington Co., South DakotaFluorapatite, King Lithia Mine, Greyhound Gulch, Keystone District, Pennington Co., South Dakota
Crystal 1.1 cm
From the collection of Robert Bartsch

Millerite, Platte River, MissouriMillerite, Platte River, Missouri – crystal group 1.5 cm

Chrysocolla, Quartz, Planet Mine, Planet, Buckskin Mtns., La Paz Co., Arizona, USAChrysocolla, Quartz, Planet Mine, Planet, Buckskin Mtns., La Paz Co., Arizona
Field of view approx. 6 cm

Chrysocolla and malachite, Morenci Mine, Greenlee Co., ArizonaChrysocolla and malachite, Morenci Mine, Greenlee Co., Arizona – 4.9 cm

Fluorite, Cave-in-Rock District, Hardin Co., Illinois

Fluorite, Cave-in-Rock District, Hardin Co., Illinois
Field of view approx. 5 cm

Goethite, Goethite Hill, Lake George District, Park Co., Colorado, USAGoethite, Goethite Hill, Lake George District, Park Co., Colorado – 6.1 cm

Barite, Pack Rat Mine, Pryor Mtns, Carbon Co., Montana, USA

Barite, Pack Rat Mine, Pryor Mtns, Carbon Co., Montana
Field of view approx. 4.5 cm

Quartz, variety Herkimer Diamond, Crystal Grove, Lassellsville, Town of Ephrata, Fulton Co., New York, USA

Quartz, var. Herkimer Diamond, Crystal Grove, Lassellsville, Town of Ephrata, Fulton Co., New York
Crystal 1.2 cm

Posted by: Raymond McDougall on 06.12.2015 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve added a new Namibia Update (click here) with selected excellent specimens from the Tsumeb Mine and also from the Kaokoveld Plateau in Namibia.

 Cerussite, Tsumeb Mine, Otjikoto Region, NamibiaCerussite, Tsumeb Mine, Otjikoto Region, Namibia – 4.4 cm

Cerussite, Tsumeb Mine, Otjikoto Region, NamibiaCerussite and Goethite, Tsumeb Mine, Otjikoto Region, Namibia – 4.9 cm

Cerussite, Tsumeb Mine, Otjikoto Region, NamibiaCerussite, Tsumeb Mine, Otjikoto Region, Namibia – 5.2 cm

Copper, Tsumeb Mine, Otjikoto Region, NamibiaCopper, Tsumeb Mine, Otjikoto Region, Namibia – crystal group 1.5 cm

Malachite pseudomorph after azurite, Tsumeb Mine, Otjikoto Region, NamibiaMalachite pseudomorph after azurite, Tsumeb Mine, Otjikoto Region, Namibia – 5.8 cm

Malachite pseudomorph after azurite, Tsumeb Mine, Otjikoto Region, Namibia Malachite pseudomorph after azurite, Tsumeb Mine, Otjikoto Region, Namibia – 7.2 cm

Smithsonite, Tsumeb Mine, Otjikoto Region, NamibiaSmithsonite, Tsumeb Mine, Otjikoto Region, Namibia – 5.7 cm

Tennantite, Tsumeb Mine, Otjikoto Region, NamibiaTennantite, Tsumeb Mine, Otjikoto Region, Namibia – 5.2 cm

Dioptase, Okandawasi Pit, Kaokoveld Plateau, Kunene Region, NamibiaDioptase, Okandawasi Pit, Kaokoveld Plateau, Kunene Region, Namibia – crystal 1.4 cm

Dioptase, Okandawasi Pit, Kaokoveld Plateau, Kunene Region, NamibiaDioptase, Okandawasi Pit, Kaokoveld Plateau, Kunene Region, Namibia – field of view 2.4 cm

Posted by: Raymond McDougall on 05.23.2015 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve made no secret of my belief that excellent black crystals are very cool. But colour is great too, and the latest update has lots! The new DR Congo Update (click here) features some amazing hues of pink in beautiful specimens of cobaltoan dolomite from Katanga, some of which have green malachite in association. The update also includes a specimen with exquisite twinned calcite crystals from Mashamba West.

Dolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the CongoDolomite, var. cobaltoan dolomite with malachite, Katanga, Democratic Republic of the Congo – field of view 3 cm

Dolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the CongoDolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the Congo – 7.3 cm

Dolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the CongoDolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the Congo  – 8.5 cm

Dolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the CongoDolomite, var. cobaltoan dolomite with malachite, Katanga, Democratic Republic of the Congo – field of view 3 cm

Dolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the CongoDolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the Congo – 5.9 cm

Dolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the Congo

Malachiteon dolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the Congo – field of view 2.4 cm

Dolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the CongoDolomite, var. cobaltoan dolomite, Katanga, Democratic Republic of the Congo – field of view 2 cm

Calcite on chrysocolla, Mashamba West Mine, Kolwezi, Katanga, Democratic Republic of the Congo

Calcite twins on chrysocolla, Mashamba West Mine, Kolwezi, Katanga, Democratic Republic of the Congo – 4.1 cm

Posted by: Raymond McDougall on 10.30.2014 | Filed under: Latest, Recent Mineral Updates | Comments (0)

This Democratic Republic of Congo Update (click here) features fine azurites from a new find at Kibwi, an excellent primary malachite from the Tantara Mine and deep pink cobaltoan calcite from Kolwesi.

100549(1)

 Azurite, Kibwi, Katanga, Democratic Republic of Congo – 4.3 cm

Although the copper deposits of the Democratic Republic of Congo have been famous for a long time, excellent crystallized azurite specimens are uncommon from the DRC (and have often been quite expensive). This lot is from a new find at Kibwi, located approximately 70 km northeast of Lubumbashi on the road to Likasi in Katanga.

100550(1)

Azurite, Kibwi, Katanga, Democratic Republic of Congo – 4.4 cm

azurite

 Azurite, Kibwi, Katanga, Democratic Republic of Congo – 3.3 cm

100560(3)

Malachite, Quartz, Tantara Mine, Shinkolobwe, Katanga, Democratic Republic of Congo – Malachite ball is 1.8 cm