FMF - Friends of Minerals Forum, discussion and message board

[Carles Millan]

Cassiterite, quartz

Group of brown translucent cassiterite crystals set on a matrix of crystallized quartz. Undamaged. Overall size: 83 mm x 72 mm x 49 mm. Main cassiterite crystal: 17 mm tall, 16 mm wide. Weight: 306 g.

Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia.

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

My Personal Gallery

---

4448M-cassiterite.jpg
Description:	Cassiterite, quartz Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia 83 mm x 72 mm x 49 mm. Main cassiterite crystal: 17 mm tall, 16 mm wide
Viewed:	33534 Time(s)

---

---

4448M-cassiterite1.jpg
Description:	Cassiterite, quartz Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia 83 mm x 72 mm x 49 mm. Main cassiterite crystal: 17 mm tall, 16 mm wide
Viewed:	33277 Time(s)

---

---

4448M-cassiterite2.jpg
Description:	Cassiterite, quartz Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia 83 mm x 72 mm x 49 mm. Main cassiterite crystal: 17 mm tall, 16 mm wide
Viewed:	33283 Time(s)

---

[Carles Millan]

Pyrite

Five mirror-like intertwined cubic {100} pyrite crystals. It's a floater, complete all around. Maximum width: 66 mm. Longest edge: 37 mm. Weight: 316 g.

Ampliación a Victoria Mine, Navajún, La Rioja, Spain.

Other pyrite photos from the same locality can be found at the following URL in this forum https://www.topminerals.info/index.php?searchterms=Navaj&searchauthor=Carles+Millan&level=search

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

My Personal Site

---

2790M-pyrite1.jpg
Dimensions:	Maximum width: 66 mm. Longest edge: 37 mm.
Description:	Pyrite Ampliación a Victoria Mine, Navajún, La Rioja, Spain
Viewed:	33284 Time(s)

---

---

2790M-pyrite2.jpg
Dimensions:	Maximum width: 66 mm. Longest edge: 37 mm.
Description:	Pyrite Ampliación a Victoria Mine, Navajún, La Rioja, Spain
Viewed:	33263 Time(s)

---

---

2790M-pyrite3.jpg
Dimensions:	Maximum width: 66 mm. Longest edge: 37 mm.
Description:	Pyrite Ampliación a Victoria Mine, Navajún, La Rioja, Spain
Viewed:	33289 Time(s)

---

[Joan Massagué]

Hi Carles

We've corresponded privately about these specimens that you are posting, but seeing them here all on one page I can't help but express my admiration for your taste. Really classy, "architectural" specimens.

About the scheelites from Gharmung, I am mystified by the relative little attention that these have enjoyed in the collector community. I love them. It must be that we are all spoiled by the XueBaoDing scheelite stravaganza and that these samples from Pakistan are looked down upon as lesser material. A day will come when these too will receive the attention that they deserve.

[Carles Millan]

Hübnerite, quartz

Group of black tabular hübnerite crystals with colorless crystallized quartz showing a Japan law twin. Size: 80 mm x 77 mm x 70 mm. Main hübnerite crystal: 55 mm wide. Weight: 250 g.

Labor Victoria, Mundo Nuevo Mine, 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]

Quartz, aegirine, zircon, feldspar

Group of aegirine with color-zoned smoky quartz crystals, almost transparent, one of them with a flattened tabular habit and doubly terminated that looks like a gwindel, uncommon at this locality, accompanied by some zircon and feldspar. Undamaged. Overall size: 116 mm x 102 mm x 57 mm. Main aegirine crystal: 92 mm long, 12 mm wide. Main quartz crystal: 116 mm long, 55 mm wide, 13 mm thick. Weight: 280 g.

Mount Malosa, Zomba District, Malawi.

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.

[José Miguel]

Carles, very good Japan law twin with Hübnerite. If I had seen this piece before you.... It would be in my pocket!!!

[Carles Millan]

[Carles Millan]

Gold, quartz

Gold in not well defined crystals, showing some plates together with filiform, dendritic and arborescent forms, on a matrix of quartz. Overall size: 47 mm x 33 mm. Weight: 38 g. This specimen was brought from Philippines by the Spanish engineer Antonio Hernández, who had worked at the Macayan copper mines in the 19th century. I keep handwritten documents from him, dated year 1853, related with the mentioned copper mining works.

Very likely from Mancayan (Mankayan) mineral district, Benguet Province, Cordillera Administrative Region, Luzon, Philippines, where the presence of gold has been cited.

This specimen is no longer in my collection.

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]

(Old specimen, better photos)

Arfvedsonite

Isolated arfvedsonite crystal with multiple termination, complete all around, undamaged. Size: 100 mm tall, 34 mm wide, 16 mm thick. Weight: 75 g.

Mount Malosa, Zomba Plateau, Malawi.

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

[jamesb]

Hi Carles, I love the Japan Twin with Huebnerite. What a nice piece. That must have been a memorable day and an exciting trip home.

( https://www.mineral-forum.com/message-board/viewtopic.php?p=14530#14530 )

[Carles Millan]

(Old specimen, better photos)

Ferberite, apatite, siderite, mica

Group of ferberite crystals accompanied by a smaller green apatite crystal at the bottom, numerous brown-yellow tabular siderite crystals, and mica. Complete all around. Undamaged. Overall size: 71 mm x 60 mm x 60 mm. Weight: 280 g.

Panasqueira Mines, Panasqueira, Covilhã, Castelo Branco District, Portugal.

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

[Carles Millan]

(Old specimen, better photos)

Hübnerite, quartz

Group of hübnerite and quartz crystals. Overall size: 107 mm x 75 mm. Maximum crystal sizes > Hübnerite: 26 mm long, 13.5 mm wide, 5 mm thick; Quartz: 39 mm long, 8 mm wide. Weight: 277 g. Extracted from a new pocket, Labor Jaqui, found in the summer 2008.

Mundo Nuevo mine, Huamachuco, Sánchez Carrión, La Libertad, Peru.

Other hübnerites from the same locality can be seen at https://www.topminerals.info/index.php?searchterms=h%C3%BCbnerite&searchauthor=Carles+Millan&level=search

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

[Carles Millan]

(Old specimen, better photos, I believe)

Pyrite

Three mirror-like intertwined cubic {100} pyrite crystals. It's a floater, complete all around. Damage-free. Extracted in the spring 2007. Maximum width: 67 mm. Main crystal edge: 39 mm. Weight: 347 g.

Ampliación a Victoria Mine, Sierra de Alcarama, Navajún, La Rioja, Spain.

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

[Carles Millan]

(Old specimen, better photos)

Arfvedsonite, orthoclase

Group of twinned orthoclase and several doubly terminated arfvedsonite crystals. Overall size: 80 mm x 52 mm x 35 mm. Main arfvedsonite crystal: 28 mm long, 26 mm wide. Weight: 145 g.

Mount Malosa, Zomba District, Malawi.

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

[Carles Millan]

Schorl, feldspar

Isolated schorl crystal with some feldspar. Seems to be a floater. Overall size: 65 mm x 58 mm x 57 mm. Weight: 350 g. Extracted around year 1990. Ex-Desmond Sacco collection (South Africa), with label.

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

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, quartz

Group of octahedral {111}, metallic black color, alabandite crystals partially coated with pale pink rhodochrosite, accompanied with some crystallized quartz, from a find of September 2010 in the 300 level of the mine (895 m deep). It shows at least five spinel law twins, several of them visible in the photos. Size: 84 mm x 58 mm x 45 mm. Major crystal: 13 mm tall, 9 mm on edge. Weight: 214 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.

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

[Carles Millan]

And where is the Uchucchacua mine?

[Carles Millan]

Baryte

Complex orthorhombic sharp prism of colorless and transparent Baryte with a little of rocky matrix attached. Overall size: 41 mm x 31 mm x 21 mm. Weight: 46 g. Ex Joaquim Folch duplicates collection, Barcelona.

Book Cliffs area, Grand Junction, Mesa Co., Colorado, USA.

This is the gift from Jordi Fabre for having been not long ago the first to reach 100,000 views in the Collection photos and Collector's page section.

Sorry! The pictures are rather poor because my inability to photograph transparent specimens.

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

[Carles Millan]

Ferberite, fluorite, quartz, arsenopyrite, calcite, muscovite

Six mineral species in a single specimen.

Bright black, bladed ferberite crystals with a purple cubic {100} fluorite crystal at the bottom, accompanied by several transparent colorless quartz, arsenopyrite, white calcite, and muscovite crystals. Damage free. Complete all around. Overall size: 112 mm x 75 mm x 69 mm. Main ferberite crystal: 68 mm tall, 43 mm wide. Weight: 459 g.

Yaogangxian Mine, Yizhang, Chenzhou, Hunan, China.

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

My Personal Site

---

6664M-ferberite1.jpg
Description:	Ferberite, fluorite, quartz, arsenopyrite, calcite, muscovite Yaogangxian Mine, Yizhang, Chenzhou, Hunan, China 112 mm x 75 mm x 69 mm. Main ferberite crystal: 68 mm tall, 43 mm wide
Viewed:	30887 Time(s)

---

---

6664M-ferberite3.jpg
Description:	Ferberite, fluorite, quartz, arsenopyrite, calcite, muscovite Yaogangxian Mine, Yizhang, Chenzhou, Hunan, China 112 mm x 75 mm x 69 mm. Main ferberite crystal: 68 mm tall, 43 mm wide
Viewed:	30882 Time(s)

---

---

6664M-ferberite2.jpg
Description:	Ferberite, fluorite, quartz, arsenopyrite, calcite, muscovite Yaogangxian Mine, Yizhang, Chenzhou, Hunan, China 112 mm x 75 mm x 69 mm. Main ferberite crystal: 68 mm tall, 43 mm wide
Viewed:	30911 Time(s)

---

---

6664M-ferberite4.jpg
Description:	Ferberite, fluorite, quartz, arsenopyrite, calcite, muscovite Yaogangxian Mine, Yizhang, Chenzhou, Hunan, China 112 mm x 75 mm x 69 mm. Main ferberite crystal: 68 mm tall, 43 mm wide Rear view.
Viewed:	30904 Time(s)

---

[Carles Millan]

Gypsum

Group of colorless and transparent gypsum crystals, the largest showing a doubly terminated prismatic habit. Overall size: 120 mm x 72 mm. Main crystal: 98 mm tall, 20 mm wide. Weight: 129 g.

Naica, Mun. de Saucillo, Chihuahua, Mexico.

Another specimen from the same locality but with a different habit can be seen here.

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