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Carles Millan's Photo Gallery

TUV-9HGManganite : Mn3+O(OH)

Multiple photos available
Ilfeld, Nordhausen, Harz, Thuringia, Germany

Dimensions: 110 mm x 54 mm x 39 mm
Largest Crystal Size: 18 mm
Weight: 347 g

Very bright and lustrous, well formed, jet-black prismatic crystals of manganite. The plate has dozens of sharp columns up to 18 mm tall, striated according to the c-axis with the typical rough flat terminations, densely covering the top of an 110 mm x 54 mm x 39 mm massive manganite matrix. Weight: 347 g. I can't see any damage with my naked eye except in the periphery. An old-time European classic from the type locality that set the standard for the species (and still does). Put on sale in the XIX century by the German dealer Dr. Adam August Krantz (1808-1872), as seen in the label that comes with it. He was then one of the foremost mineral dealers in Europe, established in Bonn from 1850 until his death. Wikipedia:
Copyright: © Weinrich Minerals, Inc.      Photo ID: 859830     Uploaded by: Carles Millan   View Count: 54   Approval status: Public galleries    Type: Photo - 850 x 1160 pixels (1.0 Mpix)

97Y-MQJTetrahedrite : Cu6[Cu4(Fe,Zn)2]Sb4S13, Hübnerite : Mn2+WO4, Quartz : SiO2

Multiple photos available
Mundo Nuevo Mine, Mundo Nuevo, Huamachuco, Sanchez Carrion Province, La Libertad Department, Peru

Dimensions: 92 mm x 61 mm
Largest Crystal Size: 25 mm
Weight: 137 g

A crowd of metallic tetrahedrite crystals, the biggest of which is 25 mm on edge, is perched on a large cluster of colorless quartz crystals. The major of these is 86 mm tall, and they are mostly transparent with a somewhat frosted surface making it translucent white. As a little surprise a hübnerite crystal can be spotted just at the geometrical center of the photo, partly overlapping the white main quartz. It is 17 mm long and 7.5 mm wide, and is embedded between quartz and tetrahedrite. When backlit in the right way it shows the typical deep red color. The whole specimen weighs 137 g and measures 92 mm x 61 mm.
Copyright: © Rudolf Watzl      Photo ID: 841452     Uploaded by: Carles Millan   View Count: 37   Approval status: Public galleries    Type: Photo - 1417 x 2006 pixels (2.8 Mpix)

3CN-YEDCassiterite : SnO2, Quartz : SiO2

Multiple photos available
Viloco Mine, Loayza Province, La Paz Department, Bolivia

Dimensions: 98 mm x 90 mm x 72 mm
Largest Crystal Size: 40 mm
Weight: 955 g

Group of honey-brown, translucent when backlit, cassiterite crystals set on a matrix of crystallized quartz. Several of them are twinned. No damage. Overall size: 98 mm x 90 mm x 72 mm. Main cassiterite crystal: 40 mm wide. Weight: 955 g.
Copyright: © Carles Millan. Reproduction allowed as long as the      Photo ID: 822271     Uploaded by: Carles Millan   View Count: 41   Approval status: Public galleries    Type: Photo - 3153 x 2904 pixels (9.2 Mpix)

WKU-9N7Quartz : SiO2, Epidote : {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Mun. Las Vigas de Ramírez, Veracruz, Mexico

Dimensions: 111 mm x 91 mm
Largest Crystal Size: 53 mm
Weight: 297 g

Group of purple to colorless transparent quartz crystals on a matrix covered by contrasting small acicular green epidote. Overall size: 111mm x 91mm. Widest crystal: 14mm. Tallest crystal: 53mm. Weight: 297g. Since I stand against the use of varieties I much prefer not to name it amethyst. Simply quartz.
Copyright: © Carles Millan      Photo ID: 787895     Uploaded by: Carles Millan   View Count: 69   Approval status: Public galleries    Type: Photo - 2809 x 2623 pixels (7.4 Mpix)

UNL-GMEQuartz : SiO2

Multiple photos available
Bourg d'Oisans, Isère, Auvergne-Rhône-Alpes, France

Dimensions: 65 mm x 63 mm x 37 mm
Largest Crystal Size: 49 mm
Weight: 106 g

Aggregation of colorless and transparent quartz crystals with some small inclusions of siderite. Overall size: 65mm x 63mm x 37mm. Main crystal: 49mm tall, 9mm wide. Weight: 106g. From the collection of Alain Martaud. According to the data supplied by the vendor, the locality is Giraud, Villard-Nôtre-Dame [very close to Bourg d'Oisans], La Gardette area, Isère, Rhône-Alpes, France.
Copyright: © Carles Millan      Photo ID: 787804     Uploaded by: Carles Millan   View Count: 151   Approval status: Public galleries    Type: Photo - 2647 x 3036 pixels (8.0 Mpix)

KPF-3YFAegirine : NaFe3+Si2O6, Orthoclase : K(AlSi3O8), Zircon : Zr(SiO4)

Mount Malosa, Zomba District, Malawi

Dimensions: 108 mm x 51 mm
Largest Crystal Size: 92 mm
Weight: 124 g

Group of black color aegirine crystals with acute edges, showing very lustrous almost mirror-like faces and a rather uncommon (in this locality) sharp pointed habit. Several crystals of colorless orthoclase accompany them on the base and a small zircon crystal can be seen on the back side. Overall size: 108mm x 51mm. Main aegirine crystal: 12mm wide, 92mm tall. Weight: 124g.
Copyright: © Carles Millan      Photo ID: 787302     Uploaded by: Carles Millan   View Count: 61   Approval status: Public galleries    Type: Photo - 1695 x 3455 pixels (5.9 Mpix)

QCX-HQGHübnerite : Mn2+WO4, Quartz : SiO2

Huayllapon Mine, Pasto Bueno, Pampas District, Pallasca Province, Ancash Department, Peru

Dimensions: 108 mm x 67 mm
Largest Crystal Size: 63 mm
Weight: 351 g

Association of parallel hübnerite crystals with colorless quartz. Deep red color when backlit (indicating a predominance of manganese on iron in the hübnerite-ferberite series). Overall size: 108mm x 67mm. Main hübnerite crystal: 63mm tall, 26mm wide. Main quartz crystal: 72mm tall, 21mm wide. Weight: 351g.
Copyright: © Carles Millan      Photo ID: 786606     Uploaded by: Carles Millan   View Count: 101   Approval status: Public galleries    Type: Photo - 3557 x 3422 pixels (12.2 Mpix)

V89-PJGPyrite : FeS2, Quartz : SiO2

Multiple photos available
Huanzala Mine, Huallanca, Huallanca District, Bolognesi Province, Ancash Department, Peru

Dimensions: 102 mm x 70 mm x 40 mm
Largest Crystal Size: 53 mm
Weight: 314 g

Group with several octahedral {111} pyrite crystals on a bed of colorless quartz, a typical specimen of that prolific and already classic mine. The main crystal is complete all around, measures 53 mm from tip to tip and 41 mm on edge, with narrow stepped edges that may be faces of rhombododecahedron {110}. The octahedral faces are mirror-like, as can be appreciated with the reflected quartz crystals. In very good condition except for some natural but stabilized cracks (hard to see in the photos). Overall size: 102 mm x 70 mm x 40 mm. Weight: 314 g.
Copyright: © Carles Millan      Photo ID: 777259     Uploaded by: Carles Millan   View Count: 170   Approval status: Public galleries    Type: Photo - 1850 x 2500 pixels (4.6 Mpix)

LRC-AA3Sphalerite : ZnS, Dolomite : CaMg(CO3)2, Calcite : CaCO3

Multiple photos available
Trepča Stan Terg Mine, Trepča complex, Trepča valley, Kosovska Mitrovica, District of Kosovska Mitrovica, Kosovo

Dimensions: 124 mm x 87 mm x 39 mm
Largest Crystal Size: 29 mm
Weight: 471 g

Association of black highly lustrous sphalerite crystals showing very sharp edges and well defined mirror-like faces, which is not typical of the species, partially covered with smaller colorless crystals of dolomite and calcite that produce a deep and nice contrast. The specimen has been kept by a local miner in pristine condition, free of any damage, since its extraction some time between years 1994-2002. Contains several spinel-law twins on the octahedral {111} face as can easily be appreciated in the photos. Overall size: 124 mm x 87 mm x 39 mm. Major crystal size: 29 mm on edge. Weight: 471 g. Unfortunately this is a not photography friendly specimen.
Copyright: © Carles Millan      Photo ID: 763577     Uploaded by: Carles Millan   View Count: 136   Approval status: Public galleries    Type: Photo - 2605 x 3547 pixels (9.2 Mpix)

MPL-DY5Fluorite : CaF2, Quartz : SiO2

Multiple photos available
Riemvasmaak fluorite occurrences, Riemvasmaak, Kakamas, ZF Mgcawu District, Northern Cape Province, South Africa

Dimensions: 110 mm x 90 mm x 55 mm
Largest Crystal Size: 48 mm
Weight: 637 g

Group of sharp and lustrous emerald green, transparent, octahedrical crystals of fluorite, with some remnant microcrystalline quartz coating the base. No damage. The major crystal, on the left side of the photo, is complete all around. Overall specimen size: 110mm x 90mm x 55mm. Main crystal size: 48mm tall, 37mm on edge. Weight: 637g.
Copyright: © Carles Millan      Photo ID: 749724     Uploaded by: Carles Millan   View Count: 98   Approval status: Public galleries    Type: Photo - 3170 x 2757 pixels (8.7 Mpix)
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