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[Carles Millan]

Baryte, orpiment, realgar

Group of translucent colorless, rhombic Baryte crystals, set aesthetically upon a matrix of orpiment. The rhombs are covered in the upper side with a large number of very small orpiment and several larger realgar crystals. Overall size: 93 mm x 66 mm x 37 mm. Major Baryte crystal: 33 mm long, 11 mm thick. Weight: 290 g.

Quiruvilca Mine (La Libertad Mine; ASARCO Mine), Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru.

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited (if it is not too much to ask...). Creative Commons Attribution Licence - Some Rights Reserved.

My Personal Site

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6163M-barite1.jpg
Description:	Baryte, orpiment, realgar Quiruvilca Mine, Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru 93 mm x 66 mm x 37 mm
Viewed:	24643 Time(s)

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6163M-barite2.jpg
Description:	Baryte, orpiment, realgar Quiruvilca Mine, Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru 93 mm x 66 mm x 37 mm
Viewed:	24623 Time(s)

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Quiruvilca.jpg
Description:	_Baryte, orpiment, realgar Geographical position of Quiruvilca (the red marks point to well known mineral localities in Peru)
Viewed:	24621 Time(s)

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[JMiguelE]

Very nice specimen and pics, Carles.

[Tobi]

Good stuff as usual, Carles!

The Baryte/orpiment/realgar paragenesis is really awesome, congratulations!

[Carles Millan]

Fluorite, hübnerite, quartz

Pale green octahedral fluorite crystal, complete all around, on a matrix of quartz, accompanied by hübnerite. Overall size: 65 mm x 65 mm x 56 mm. Fluorite crystal size: 35 mm on edge. Weight: 202 g. The crystal of fluorite is green in the inside and almost colorless in the outer part, near the surface, which says something interesting about the history of the specimen. With strong rear illumination the hübnerite shows red translucency.

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

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited and the image not modified. Creative Commons Attribution Licence - Some Rights Reserved.

[JMiguelE]

What an amazing fluorite with hübnerite!!! I didn't know this kind of combination.

[GneissWare]

Carles:
What an outstanding specimen. And its nice to see you posting again after an absence. I really enjoy looking at your specimens, and I am so glad you live in Europe so we don't have to compete for the same kinds of specimens ;=))
Bob

[Tobi]

[Carles Millan]

Gypsum

Group of seven diverging, twinned, transparent and colorless gypsum crystals set upon a gypsum matrix. Undamaged. Overall size: 79 mm x 63 mm. Maximum crystal sizes: 38 mm long, 16 mm wide, 6 mm thick. Weight: 67 g.

Alabaster quarries, Cerro Patillas, Fuentes de Ebro, Zaragoza, Aragón, Spain.

Other gypsum specimens from the same deposit can be seen at https://www.mineral-forum.com/message-board/viewtopic.php?p=6465#6465 and https://www.mineral-forum.com/message-board/viewtopic.php?p=6477#6477

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited and the image not modified. Creative Commons Attribution Licence - Some Rights Reserved.

[Carles Millan]

Tetrahedrite, pyrite, quartz

Group of near two dozen, metallic gray color tetrahedral tetrahedrite crystals set on a pyritohedron of pyrite. Overall size: 65 mm x 51 mm. Longest tetrahedron edge: 12 mm. Longest pyrite crystal edge: 25 mm. Weight: 143 g.

Actually a member of the series tennantite-tetrahedrite. So it might be from a Sb-rich tennantite to an As-rich tetrahedrite, somewhere between.

I might be from a Sb-rich tennantite to an As-rich tetrahedrite, anywhere between.

Mundo Nuevo Mine, Huamachuco, Sanchez Carrion Province, La Libertad Department, Peru.

Another tetrahedrite specimen from the same locality can be seen at https://www.mineral-forum.com/message-board/viewtopic.php?p=7367#7367

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited. Creative Commons Attribution Licence - Some Rights Reserved.

[Carles Millan]

Augelite, quartz

Group of several green augelite crystals on quartz. The largest is doubly terminated and 25 mm long. Overall size: 61 mm x 61 mm x 51 mm. Weight: 115 g. From a recent find in the Tamboras area, at 5500 m above the sea level.

From The Mineralogical Record, March-April 2011, vol. 42/2, page 141: These specimens [augelite from Mundo Nuevo] are probably the world's finest for the species, with crystals as large as the largest known from Rapid Creek, Yukon, and from the Champion mine, California.

Mundo Nuevo, Huamachuco, Sanchez Carrion Province, La Libertad Department, Peru.

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited. Creative Commons Attribution Licence - Some Rights Reserved.

[Carles Millan]

Hübnerite, quartz

Two black tabular hübnerite crystals with quartz. Overall size: 48 mm x 47 mm. Major hübnerite crystal: 42 mm tall, 32 mm wide. Weight: 80 g.

From Labor Jacky, Mundo Nuevo mine, Huamachuco, Sanchez Carrion Province, La Libertad Department, Peru.

Other hübnerites from the same locality can be seen at https://www.mineral-forum.com/message-board/viewtopic.php?p=14854#14854

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited. Creative Commons Attribution Licence - Some Rights Reserved.

[Carles Millan]

Alabandite, rhodochrosite

Group of octahedral {111}, bright metallic black color, alabandite crystals partially coated with pink microcrystalline rhodochrosite. From a new pocket found on late February 2011 next to the area where the silver ore is being worked. It shows some spinel law twins. Size: 60 mm x 59 mm x 46 mm. Major crystal: 20 mm tall, 14 mm on edge. Weight: 204 g.

From The Mineralogical Record, January-February 2011, vol. 42/1, page 73: The specimens from this pocket represent the highest quality ever seen for this species.

Uchucchacua Mine, Oyon, Lima, Peru.

Another specimen from the same locality can be seen at https://www.mineral-forum.com/message-board/viewtopic.php?p=16943#16943

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited. Creative Commons Attribution Licence - Some Rights Reserved.

[chris]

Great specimen Carles. Fits perfectly with the rest of your collection.

Christophe

[Carles Millan]

(Old specimen, better photos)

Beryl, tourmaline, microcline

Group of transparent to somewhat cloudy beryl crystals with tourmaline (schorl) set on corroded or weathered microcline. Undamaged. Overall size: 65 mm x 58 mm x 40 mm. Main beryl crystal: 21 mm wide, 45 mm tall. Weight: 88 g. From a new pocket of intense blue aquamarine discovered in August 2009.

Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia.

Another beryl from the same locality can be seen at https://www.mineral-forum.com/message-board/viewtopic.php?p=4585#4585

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited. Creative Commons Attribution License - Some Rights Reserved.

My Personal Site

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8204M-beryl.jpg
Description:	Beryl, tourmaline, microcline Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia 65 mm x 58 mm x 40 mm
Viewed:	23839 Time(s)

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8204M-beryl1.jpg
Description:	Beryl, tourmaline, microcline Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia 65 mm x 58 mm x 40 mm
Viewed:	23819 Time(s)

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8204M-beryl2.jpg
Description:	Beryl, tourmaline, microcline Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia 65 mm x 58 mm x 40 mm
Viewed:	23869 Time(s)

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[Tobi]

A really aesthetic classic from Erongo, Carles, i always like to see that specimen - especially on the better photos :-)

[Carles Millan]

(Old specimen, better photos)

Pyrite

Group of 7 cubic pyrite crystals without matrix, disassembled while being extracted and then reattached with a polycyanoacrylate in their original position (I believe). Overall size: 160 mm x 130 mm x 85 mm. Longest crystal edge: 43 mm. Weight: 1274 g.

Ampliación a Victoria mine, Sierra de Alcarama, Navajún, Rioja, Spain.

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited. Creative Commons Attribution Licence - Some Rights Reserved.

[Tobi]

Hi Carles,

i suppose 1274 grams of assembled pyrite crystals are quite fragile ... How do you prevent this specimen from breaking apart? Is it fixed somehow? Or does the polycyanoacrylate make it stable?

Cheers!

[Carles Millan]

[Carles Millan]

(Old specimen, better photos)

Aegirine, orthoclase

Huge aegirine crystal, an octagonal prism complete all around, in a group with orthoclase. Overall size: 89 mm x 78 mm x 70 mm. Main aegirine crystal width: 39 mm. Weight: 525 g.

Mount Malosa, Zomba District, Malawi.

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited (if it is not too much to ask...). Creative Commons Attribution Licence - Some Rights Reserved.

[Carles Millan]

(Old specimen, better photos)

Powellite, stilbite

Polysynthetic translucent colorless powellite crystal sitting on a brown matrix of stilbite. Overall size: 63 mm x 59 mm x 46 mm. Powellite crystal: 37 mm tall, 30 mm on edge. Weight: 164 g.

Jalgaon, Maharashtra, India.

Photos copyright © Carles Millan. Reproduction allowed as long as the author's name is cited. Creative Commons Attribution License - Some Rights Reserved.