Mineral specimens search results

(para ver esta página en español)

Mineral specimens search results for [ ]

MM49AJ0: Tennantite with Dolomite and Quartz

Group of Tennantite crystals, one of them clearly dominant, with very well defined faces and edges, with the forms of a tetrahedron and dodecahedron, and with small, white, Dolomite
A classic from Tsumeb that was in the Enrique Moës collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia
Specimen size: 6.4 × 5.1 × 3.9 cm = 2.52” × 2.01” × 1.54”
Price: €440 / US$471 / ¥62460 / AUD$700

NF16AM4: Tennantite-(Fe)

Shiny, dark gray crystals of Tennantite-(Fe) with a very unusual crystallographic habit.
The specimen comes from the last find before the definitive closure of the open pit operations at this mine. It has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 6.1 × 4.3 × 2.7 cm = 2.40” × 1.69” × 1.06”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”
Price: €110 / US$117 / ¥15610 / AUD$170

TC290NXM: Tennantite-(Fe) (variety Sb-bearing tennantite) with Chalcocite and Pyrite

Groups of small Tennantite-(Fe) crystals, with the dominant crystal forms of the tetrahedron accompanied by minor forms. On matrix, with shiny twinned Chalcocite crystals and small groups of Pyrite crystals. The specimen comes from the lasts discoveries before the definitive closure of open pit operations at this mine. It is an antimony-bearing variety, as analysis showed a significant antimony content. We will send a copy of this analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (09-11/2019)
Specimen size: 6.8 × 4.5 × 1.4 cm = 2.68” × 1.77” × 0.55”
Price: €90 / US$96 / ¥12770 / AUD$140

NT14AM4: Tennantite-(Fe) coating Chalcocite

Shiny Tennantite-(Fe) crystals with dark gray tones, with a very unusual crystallographic habit and covering twinned Chalcocite crystals.
The specimen comes from the last find before the definitive closure of the open pit operations at this mine. It has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 6.2 × 4.6 × 4.1 cm = 2.44” × 1.81” × 1.61”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”
Price: €90 / US$96 / ¥12770 / AUD$140

NC14AM5: Tennantite-(Fe) with Chalcocite

Groups of small crystals of Tennantite-(Fe), with very bright luster, forming parallel growths in some areas and with the dominant faces of a tetrahedron accompanied by minor forms. On matrix, associated with lustrous twinned crystals of Chalcocite. This specimen, which came from the last find before the definitive closure of open pit exploitation at this mine, has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 4.4 × 3.6 × 0.7 cm = 1.73” × 1.42” × 0.28”
Price: €110 / US$117 / ¥15610 / AUD$170

NC47AM5: Tennantite-(Fe) with Chalcocite

Groups of small crystals of Tennantite-(Fe), with very bright luster, forming parallel growths in some areas and with the dominant faces of a tetrahedron accompanied by minor forms. On matrix, associated with lustrous twinned crystals of Chalcocite. This specimen, which came from the last find before the definitive closure of open pit exploitation at this mine, has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2020)
Specimen size: 7.5 × 6.6 × 1 cm = 2.95” × 2.60” × 0.39”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”
Price: €230 / US$246 / ¥32650 / AUD$360

MB91AG1: Tetrahedrite (silver rich variety) with Chalcopyrite and Quartz

This elegant silver-rich Tetrahedrite with Chalcopyrite and Quartz has a long history with labels starting in 1925 by Franz Ding and ending with John S. White. At that time the silver-rich Tetrahedrite was called "Freibergite", that name has come with the label but an analysis have proven that it is not "Freibergite" but silver-rich Tetrahedrite. Although the photos may look like there is a broken crystal the piece is perfect and has no damage. We will send labels and the analysis to the buyer of the specimen.
Pulacayo Mine, Huanchaca, Antonio Quijarro Province, Potosí Department Bolivia (± 1925)
Specimen size: 6.7 × 4.7 × 2.3 cm = 2.64” × 1.85” × 0.91”
Price: €520 / US$556 / ¥73810 / AUD$830

EP76W7: Tetrahedrite with Chalcopyrite and Quartz

From a very recent find. Sharp crystals showing the faces of the tetrahedron and tristetrahedron. They have an excellent luster and are larger than has been known for the locality. They are on matrix, with Chalcopyrite and Quartz crystals. The find has been described in number 107 of ‘Le Règne Minéral’ magazine.
Lina Mine, level 06-07, Alzen, Foix, Ariège Department, Occitanie France (2012)
Specimen size: 8.3 × 5 × 2.8 cm = 3.27” × 1.97” × 1.10”

Main crystal size: 1.1 × 0.9 cm = 0.43” × 0.35”
Price: €170 / US$182 / ¥24130 / AUD$270

XM2240MBA: Tetrahedrite with Quartz and Pyrite

Group of very sharp and brilliantly shiny tetrahedral crystals of Tetrahedrite, implanted on matrix and accompanied by small white Quartz crystals and Pyrite crystals. Comes from what was an important mining district in Eastern Europe, via the Terrae Genesis Museum located in the French town of Le Syndicat, in the Vosges mountains.
Cavnic mining area, Cavnic, Maramures Romania
Specimen size: 9 × 6.8 × 3 cm = 3.54” × 2.68” × 1.18”
Price: €240 / US$256 / ¥34070 / AUD$380

MR99AI4: Tetrahedrite with Quartz and Pyrite

Very sharp tetrahedrons of Tetrahedrite crystals that are extraordinarily bright and are on a matrix of Quartz crystals with groups of Sphalerite crystals and small Pyrite crystals. The sample is from the Uwe Niemeyer collection (Germany) whose label we’ll send to the buyer.
Baia Sprie Mine, Baia Sprie, Maramures Romania (1964)
Specimen size: 13.8 × 12.7 × 4.8 cm = 5.43” × 5.00” × 1.89”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”
Price: €480 / US$513 / ¥68140 / AUD$770

ERM69AO7: Tetrahedrite with Siderite

Group of tetrahedral crystals of Tetrahedrite with very distinct polycrystalline growths. Lustrous, on matrix with lenticular crystals of Siderite and coatings of Chalcopyrite microcrystals. The specimen is excellent for the locality both for its quality and for the size of the crystals.
La Mure coal mines, La Mure, Matheysine-Trièves, Grenoble, Isère, Auvergne-Rhône-Alpes France
Specimen size: 5.1 × 3.6 × 3.5 cm = 2.01” × 1.42” × 1.38”
Price: €380 / US$406 / ¥53940 / AUD$610

TB48AL6: Tetrahedrite-(Zn) coating Enargite

Group of Tetrahedrite-(Zn) crystals with very well defined and brilliant faces and edges that cover a group of Enargite crystals. Tetrahedrite-(Zn) is a species just recently recognized by the IMA.
We will send the specimen in its original Perky box from the Robert J. Noble collection, which contains the label and also a copy of the specimen analysis.
Quiruvilca Mine (La Libertad Mine), Quiruvilca District, Santiago de Chuco Province, La Libertad Department Peru
Specimen size: 3.6 × 2.4 × 2 cm = 1.42” × 0.94” × 0.79”
Price: €340 / US$364 / ¥48260 / AUD$540

TD96AL4: Titanite

Titanite crystal with a clearly evident contact twin, very sharp, and with well defined crystal faces. Translucent, lustrous, with an intense greenish-yellow color and just a little bit of matrix.
We will send the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Biensla, Haramosh Mountains, Baltistan District, Gilgit-Baltistan (Northern Areas) Pakistan
Specimen size: 2.2 × 1.4 × 1 cm = 0.87” × 0.55” × 0.39”
Price: €180 / US$192 / ¥25550 / AUD$289

SM150ERG: Titanite on Rutile after Ilmenite and with Microcline

Lamellar Ilmenite crystals with an irregular outline were completely replaced by Rutile and covered by very sharp Titanite crystals. They show great luster and very well defined faces and edges, with a distinct color change that shows an intense yellow under LED light and greenish under natural or fluorescent tube light. The process of substitution of Ilmenite by Rutile here seems very similar to that already known in other locations with similar geological conditions (for example the Rutile from Zambia) and is due to hydrothermal processes associated with the deposit. These specimens, very different from the titanites previously known from Imilchil, have undergone urgent analysis that we plan to continue to carry out in more depth. We will send the buyer the information and documentation obtained so far, as well as a copy of the analyses carried out on the species present in the current specimens.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)
Specimen size: 5 × 3.6 × 1.7 cm = 1.97” × 1.42” × 0.67”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”
Price: €150 / US$160 / ¥21290 / AUD$240

TC180ET: Titanite on Rutile after Ilmenite and with Microcline

A novelty at Sainte Marie-aux-Mines 2016. Platy Ilmenite crystals with irregular contours and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with daylight or neon light. Partially coated by Microcline crystals. The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. We’ll send to the buyer a copy of the analyses done on the different species present in the samples.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)
Specimen size: 5.1 × 4 × 1.8 cm = 2.01” × 1.57” × 0.71”
Price: €180 / US$192 / ¥25550 / AUD$280

ED96AD7: Titanite on Rutile after Ilmenite and with Microcline

A novelty at Sainte Marie-aux- Mines 2016. Characteristically platy Ilmenite crystals with irregular contour and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with natural or neon light.
The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. These samples, very different from the Titanite previously known at Imilchil, have required a hurried analytical process that we’ll extend and complete. We’ll send to the buyer the information and documentation previously obtained about the process and also a copy of the analyses done on the different species present in these samples.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)
Specimen size: 4.3 × 3.8 × 3.7 cm = 1.69” × 1.50” × 1.46”

Main crystal size: 0.9 × 0.5 cm = 0.35” × 0.20”
Price: €190 / US$203 / ¥26970 / AUD$300

TC260EX: Titanite on Rutile after Ilmenite and with Microcline

A novelty at Sainte Marie-aux-Mines 2016. Platy Ilmenite crystals with irregular contours and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with daylight or neon light. Partially coated by Microcline crystals. The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. We’ll send to the buyer a copy of the analyses done on the different species present in the samples.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)
Specimen size: 5.2 × 4.7 × 3 cm = 2.05” × 1.85” × 1.18”
Price: €260 / US$278 / ¥36900 / AUD$410

TC280EJ: Titanite on Rutile after Ilmenite and with Microcline

A novelty at Sainte Marie-aux-Mines 2016. Platy Ilmenite crystals with irregular contours and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with daylight or neon light. Partially coated by Microcline crystals. The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. We’ll send to the buyer a copy of the analyses done on the different species present in the samples.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)
Specimen size: 6.4 × 3.3 × 1.8 cm = 2.52” × 1.30” × 0.71”

Main crystal size: 1.1 × 0.6 cm = 0.43” × 0.24”
Price: €280 / US$299 / ¥39740 / AUD$440

EK48AE1: Titanite on Rutile after Ilmenite and with Microcline

A novelty at Sainte Marie-aux-Mines 2016. Platy Ilmenite crystals with irregular contours and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with daylight or neon light. Partially coated by Microcline crystals.
The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. We’ll send to the buyer a copy of the analyses done on the different species present in the samples.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)
Specimen size: 5.2 × 4.8 × 4.7 cm = 2.05” × 1.89” × 1.85”
Price: €320 / US$342 / ¥45420 / AUD$510

EC99AE1: Titanite on Rutile after Ilmenite and with Microcline

A novelty at Sainte Marie-aux-Mines 2016. Platy Ilmenite crystals with irregular contours and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with daylight or neon light. Partially coated by Microcline crystals. The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. We’ll send to the buyer a copy of the analyses done on the different species present in the samples.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)
Specimen size: 8.7 × 5.2 × 1.4 cm = 3.43” × 2.05” × 0.55”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”
Price: €480 / US$513 / ¥68140 / AUD$770

SM490EDT: Titanite on Rutile after Ilmenite and with Microcline

Lamellar Ilmenite crystals with an irregular outline were completely replaced by Rutile and covered by very sharp Titanite crystals. They show great luster and very well defined faces and edges, with a distinct color change that shows an intense yellow under LED light and greenish under natural or fluorescent tube light. The process of substitution of Ilmenite by Rutile here seems very similar to that already known in other locations with similar geological conditions (for example the Rutile from Zambia) and is due to hydrothermal processes associated with the deposit. These specimens, very different from the titanites previously known from Imilchil, have undergone urgent analysis that we plan to continue to carry out in more depth. We will send the buyer the information and documentation obtained so far, as well as a copy of the analyses carried out on the species present in the current specimens.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)
Specimen size: 7.7 × 6 × 2.3 cm = 3.03” × 2.36” × 0.91”
Price: €490 / US$524 / ¥69560 / AUD$780

MFA51AO3: Titanite with Quartz

Groups and isolated crystals of Titanite, twinned, with a very well defined twin plane and sharp crystal forms. Translucent, with a bright luster and an intense and uniform green color with yellow tones. On matrix, with small Quartz crystals. Excellent Brazilian classic, of high quality and difficult to obtain nowadays.
Capelinha, Jequitinhonha, Minas Gerais Brazil
Specimen size: 9.6 × 6.1 × 2.1 cm = 3.78” × 2.40” × 0.83”

Main crystal size: 2.6 × 0.7 cm = 1.02” × 0.28”
Price: €660 / US$706 / ¥93690 / AUD$1060

MR66AI8: Titanite with Quartz and inclusions

Very sharp, flattened and twinned Titanite crystal that is translucent, has a greenish-yellow color and is on a group of Quartz crystals, the main one doubly terminated. All are transparent and rich with Chlorite inclusions.
The sample is from the Carles Manresa collection whose label we will send to the buyer.
Alchuri, Shigar District, Gilgit-Baltistan (Northern Areas) Pakistan
Specimen size: 8.4 × 6.4 × 3.7 cm = 3.31” × 2.52” × 1.46”
Price: €160 / US$171 / ¥22710 / AUD$250

EFH96AN9: Tobermorite (Group) with Datolite (variety bakerite)

New for summer 2021: Tobermorite forms small, snow-white fibrous spheroidal coatings on translucent orange-pink spheroidal growths of Datolite (bakerite variety). These specimens have been analyzed and we will send a copy of the analysis to the buyer. To learn more about this species and the rest of the paragenesis discovered so far in this mine, it is essential to read the article 'Rare Borate Minerals from the Shijiangshan-Shalonggou Deposits, Hexigten Banner, Inner Mongolia, China' whose authors are César Menor-Salván, Berthold Ottens and Ed Richard, featured in Rock & Minerals magazine, September-October 2021, Volume 96, Number 5.
Shijiangshan Mine, Yinwu, Linxi, Ulanhad League, Inner Mongolia Autonomous Region China (15/07/2021)
Specimen size: 5.1 × 4 × 2.5 cm = 2.01” × 1.57” × 0.98”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”
Price: €230 / US$246 / ¥32650 / AUD$360

MC14AM7: Topaz

Topaz crystal with very sharp crystal forms, rich in terminal faces, very transparent, with good luster and a very pale salmon color.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
Nyet-Bruk, Nyet, Braldu Valley, Shigar District, Gilgit-Baltistan (Northern Areas) Pakistan
Specimen size: 2.9 × 1.1 × 1 cm = 1.14” × 0.43” × 0.39”
Price: €90 / US$96 / ¥12770 / AUD$140

We work with the IMA approved names for minerals. If you are not sure of the IMA name for the mineral you are looking for you can select it from the following list


US Minerals	Mexico & Canada Minerals	Spanish Minerals	Spanish Fluorite	Portugal - Panasqueira	French Minerals
European Minerals	FSU Minerals	Moroccan Minerals	African Minerals	Brazilian Minerals	South American Minerals
Chinese Minerals	Tukey, Asia & Australia Minerals	Joaquim Callen's Photo Gallery	The Daunis Collection	The Jan Buma Collections	The Carles Curto Collection