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[Tobi]

[Carles Millan]

[Carles Millan]

Hübnerite, quartz

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.

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

Unless otherwise noted, all photos are copyright by Carles Millan. Reproduction allowed as long as the author's name is cited and the image not modified (if it is not too much to ask...). Creative Commons Attribution Licence - Some Rights Reserved.

Software, photos and maps

[Tobi]

A very fine spray of hübnerite in an impressive (!) size, really a great specimen. I know your taste in aesthetic minerals and your love for Peruvian specimens, and I think this specimen is the logical consequence of these two factors :-)

[Carles Millan]

[Pierre Joubert]

[quote="Carles Millan'']The crystals are fully transparent but unfortunately my camera doesn't know how to do the job. Or it's me? [/quote]

Hi Carles. I have a few similar, very clear, quartz specimens. I find these the hardest to photograph and then they hardly ever look close to the real thing:-(

[Carles Millan]

[Carles Millan]

I forgot. Sorry!

The human visible spectrum includes wavelengths from about 390 nm to 700 nm. We cannot see light from below and above such range (which would be UV and IR light respectively). Other animal species can see slightly different wavelengths. But the range that the cameras see must be even more different. Not to mention the big difference of resolutions. So it's no surprise that the photos we get don't match the images we directly see.

[Carles Millan]

Cassiterite, quartz

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.

Viloco Mine, Loayza Province, La Paz Department, Bolivia.

Unless otherwise noted, all photos are copyright by Carles Millan. Reproduction allowed as long as the author's name is cited and the image not modified (if it is not too much to ask...). Creative Commons Attribution Licence - Some Rights Reserved.

Software, photos and maps

[Tobi]

[Carles Millan]

[Carles Millan]

Manganite

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. Mass: 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: https://en.wikipedia.org/wiki/Adam_August_Krantz

Ilfeld, Nordhausen, Harz, Thuringia/Thüringen, Germany.

Photos are copyrighted by Dan Weinrich.
Software, photos and maps

[Enrique Llorens]

Really great acquisition.

Congratulations. Enrique Llorens

[Tobi]

Finally something new from your collection, Carles :-) And really GREAT news, as it seems: Congratulations to that specimen, you added one of Europe's most desired classics in superb quality to your collection! I have seen many of these famous Ilfeld manganites in German collections, and even many museums don't own a specimen like that. And even with an old Krantz label! Simply fantastic :-)

[Philippe Durand]

stunning manganite; a dream ...