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Druze of small rhombohedral Dioptase crystals, transparent and extraordinarily brilliant, on matrix, with small water-clear crystals of Calcite. Dioptase is a rarity in Milpillas. One more surprise from a locality which is accustoming us to surprises.
Milpillas Mine, level 890, Cuitaca, Municipio Santa Cruz, Sonora Mexico (12/2018)
Specimen size: 3.6 × 3.5 × 1.3 cm = 1.42” × 1.38” × 0.51”
Price: €220 / US$225 / ¥29960 / AUD$320

TR89AD1: Dioptase

Aggregate of very elongated crystals that are transparent, very bright and have a very intense color. On matrix, with Calcite. We especially note the locality, very unusual for the species.
Cobrellama deposit, Ica Department Peru (2004)
Specimen size: 6.7 × 4.8 × 3.1 cm = 2.64” × 1.89” × 1.22”

Main crystal size: 0.9 × 0.2 cm = 0.35” × 0.08”
Price: €460 / US$470 / ¥62660 / AUD$670

TT93AL1: Dioptase

A novelty at Tucson 2019. Druze of small elongated Dioptase crystals, with rhombohedral terminations, transparent and with bright luster, on matrix with pale blue shattuckite. Dioptase is a rarity in Milpillas, another surprise like many to which this locality has accustomed us.
The sample has been noted and photographed in the monograph 'The Milpillas Mine' of the ‘Mineralogical Record‘ magazine on page 585 in the volume 52, number 5, September-October 2021 and in the magazine ‘Mineral Up’ on page 42 of the 2020/02 edition.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora Mexico (2019)
Specimen size: 6.1 × 4.4 × 3.1 cm = 2.40” × 1.73” × 1.22”
Price: €860 / US$880 / ¥117140 / AUD$1260

TR93AF6: Dioptase

Druse of rhombohedral crystals with very well defined faces and edges, extraordinarily bright and on matrix.
The sample is from the Vallecillo collection, Madrid.
Renéville, Kindanba District, Pool Department Republic of the Congo
Specimen size: 7.2 × 5 × 2.5 cm = 2.83” × 1.97” × 0.98”

Main crystal size: 1.6 × 1.4 cm = 0.63” × 0.55”
Price: €860 / US$880 / ¥117140 / AUD$1260

TF50AC2: Dioptase with Calcite

Small crystals, very bright, formed by the prism and acute rhombohedral terminations. They selectively occupy the surfaces of some of the faces of the white Calcite rhombohedrons on the matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia (±1975)
Specimen size: 6.2 × 5.9 × 2.9 cm = 2.44” × 2.32” × 1.14”
Price: €480 / US$491 / ¥65380 / AUD$700

BTR94AO6: Dioptase with Dolomite and Cerussite

Very sharp Dioptase crystals, large for the locality, some of them doubly terminated, translucent, very lustrous and on matrix, with white rhombohedral Dolomite crystals which are also covered by small Dioptase crystals and with a curious Cerussite crystal from which it is difficult to know if it is broken or recrystallized since all of it has a dissolution-like appearance. This specimen is of great quality and comes from an important European collection.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia
Specimen size: 10.5 × 5.2 × 5.7 cm = 4.13” × 2.05” × 2.24”

Main crystal size: 1.8 × 0.9 cm = 0.71” × 0.35”
Price: €980 / US$1002 / ¥133490 / AUD$1440

DM49AC8: Dioptase with Plancheite

Aggregate of very well defined Dioptase crystals. They are aerial, translucent, and bright. They have a very deep color and are on a rocky matrix partially coated by fibrous Plancheite aggregates. The crystals have a better luster and color than usual for the locality.
Tantara Mine, Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba) Democratic Republic of the Congo (Zaire)
Specimen size: 5.6 × 4.2 × 4.2 cm = 2.20” × 1.65” × 1.65”
Price: €460 / US$470 / ¥62660 / AUD$670

DB86AI0: Dioptase with Quartz and Calcite

Very aerial and esthetic growth of Dioptase crystals with very well defined faces and edges, very bright and on a Calcite and Quartz matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia
Specimen size: 2.2 × 1.7 × 0.9 cm = 0.87” × 0.67” × 0.35”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”
Price: €180 / US$184 / ¥24510 / AUD$260

TC230AD: Dissakisite-(Ce)/Allanite-(Ce) with Dolomite

Group of doubly terminated crystals of the isomorphous series Dissakisite-(Ce)/Allanite-(Ce). The majority of Trimouns specimens present color zoning that seems to indicate the presence of both species in the same crystal, the darkest areas corresponding to Allanite-(Ce), as they are richer in iron, and the dominant lighter areas to Dissakisite-(Ce). On matrix, with white rhombohedral Dolomite crystals.
Trimouns Mine, Luzenac, Haute-Ariège, Foix, Ariège Department, Occitanie France
Specimen size: 6 × 3.8 × 3.6 cm = 2.36” × 1.50” × 1.42”
Price: €230 / US$235 / ¥31330 / AUD$330

TC240AF: Dissakisite-(Ce)/Allanite-(Ce) with Dolomite

Crystal of the isomorphous series Dissakisite-(Ce)/Allanite-(Ce), transparent and lustrous. The majority of Trimouns specimens present color zoning that seems to indicate the presence of both species in the same crystal, the darkest areas corresponding to Allanite-(Ce), as they are richer in iron, and the dominant lighter areas to Dissakisite-(Ce). On matrix, with white rhombohedral Dolomite crystals.
Trimouns Mine, Luzenac, Haute-Ariège, Foix, Ariège Department, Occitanie France
Specimen size: 6.4 × 3.8 × 4.1 cm = 2.52” × 1.50” × 1.61”

Main crystal size: 0.9 × 0.1 cm = 0.35” × 0.04”
Price: €240 / US$245 / ¥32690 / AUD$350

TC280AE: Dissakisite-(Ce)/Allanite-(Ce) with Dolomite

Doubly terminated crystal of the isomorphous series Dissakisite-(Ce)/Allanite-(Ce). The majority of Trimouns specimens present color zoning that seems to indicate the presence of both species in the same crystal, the darkest areas corresponding to Allanite-(Ce), as they are richer in iron, and the dominant lighter areas to Dissakisite-(Ce). On matrix, with white rhombohedral Dolomite crystals.
Trimouns Mine, Luzenac, Haute-Ariège, Foix, Ariège Department, Occitanie France
Specimen size: 4.4 × 3.8 × 2.3 cm = 1.73” × 1.50” × 0.91”
Price: €280 / US$286 / ¥38140 / AUD$410

SM160MC: Djurleite with Calcite

Flattened Djurleite crystal growths, on matrix, with Calcite coatings. The Djurleite has been analyzed and we will send a copy of the analysis to the buyer.
Former collection of Fermín Clemente
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (2013)
Specimen size: 5.2 × 5 × 4.2 cm cm = 2.05” × 1.97” × 1.65”

Main crystal size: 1.5 × 0.9 cm cm = 0.59” × 0.35”
Price: €160 / US$163 / ¥21790 / AUD$230

TC88AF7: Djurleite-Chalcocite intergrowth

A novelty at Tucson 2017. Parallel growth of very flattened and bright crystals. These samples were mined carefully over seven months in the Aït Ahmane area (it seems not in the same shafts that produced the famous Gersdorffites) and, due the sharpness of the crystals and their size, this find will contend for being the world's best for the species. We’ll send to the buyer a copy of the analysis that indicates an intimate intergrowth of Djurleite and Chalcocite.
Aït Ahmane (auxiliary shaft), Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2014-05/2015)
Specimen size: 2.2 × 2 × 0.6 cm = 0.87” × 0.79” × 0.24”
Price: €340 / US$347 / ¥46310 / AUD$500

TV99AE8: Djurleite-Chalcocite intergrowth

A novelty at Tucson 2017. Aggregate on matrix of bright laminar crystals with pseudohexagonal contour. The analysis indicates an intimate intergrowth of Djurleite and Chalcocite. We’ll send a copy of the analysis to the buyer.
This specimen was published on the Mineralogical Record´s web page, in the ‘What's New’ section, report 46, April 14, 2017 edition.
Aït Ahmane (auxiliary shaft), Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2014-05/2015)
Specimen size: 5.7 × 4 × 2.4 cm = 2.24” × 1.57” × 0.94”

Main crystal size: 2.4 × 1.2 cm = 0.94” × 0.47”
Price: €540 / US$552 / ¥73550 / AUD$790

TR66AE8: Djurleite-Chalcocite intergrowth

A novelty at Tucson 2017. Aggregate on matrix of bright laminar crystals with pseudohexagonal contour. The analysis indicates an intimate intergrowth of Djurleite and Chalcocite. We’ll send a copy of the analysis to the buyer.
Aït Ahmane (auxiliary shaft), Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2014-05/2015)
Specimen size: 5.6 × 4.2 × 3.5 cm = 2.20” × 1.65” × 1.38”
Price: €1500 / US$1534 / ¥204330 / AUD$2200

TV86AF7: Djurleite-Chalcocite intergrowth

A novelty at Tucson 2017. A cluster, on matrix, of very sharp and flattened crystals with a pseudohexagonal contour. These samples were mined carefully over seven months in the Aït Ahmane area (it seems that not in the same shafts that produced the famous Gersdorffites) and, due the sharpness of the crystals and their size, this find will highlight between the world's best for the species. We’ll send to the buyer a copy of the analysis that indicates an intimate intergrowth of Djurleite and Chalcocite.
This sample has been referenced and figurate, as a novelty in Ste. Marie 2017, in the magazine "Le Règne Minéral" (Num. 136. 2017; page 47)
Aït Ahmane (auxiliary shaft), Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2014-05/2015)
Specimen size: 5.7 × 4 × 1.9 cm = 2.24” × 1.57” × 0.75”

Main crystal size: 2.1 × 1.7 cm = 0.83” × 0.67”
Price: €1800 / US$1841 / ¥245190 / AUD$2640

TC160TG: Djurleite-Chalcocite intergrowth on Calcite

Aggregate, on matrix, of very sharp crystals between lamellar and tabular, with bright luster and a sharp hexagonal outline. The analysis, of which we will send a copy to the buyer, indicates an intimate intergrowth of Djurleite and Chalcocite.
Aït Ahmane (auxiliary shaft), Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2014-05/2015)
Specimen size: 5 × 4.4 × 3.9 cm = 1.97” × 1.73” × 1.54”
Price: €160 / US$163 / ¥21790 / AUD$230

TH16AK1: Djurleite-Chalcocite intergrowth with Calcite

Surprising is the morphological perfection of the laminar crystals, on matrix, very sharp, bright and with a very well defined hexagonal contour. The analysis, which we will send a copy of to the buyer, indicates an intimate growth of Djurleite and Chalcocite with Djurleite dominant.
Aït Ahmane (auxiliary shaft), Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region Morocco (11/2014-05/2015)
Specimen size: 3 × 2.9 × 0.7 cm = 1.18” × 1.14” × 0.28”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”
Price: €110 / US$112 / ¥14980 / AUD$160

TC2180NMB: Dolomite

Very aerial group of Dolomite crystals with two rhombohedra forming an interpenetrating twin, transparent and lustrous, on matrix.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Navarre, Autonomous Community of Navarre Spain
Specimen size: 6.4 × 5.6 × 3.4 cm = 2.52” × 2.20” × 1.34”
Price: €180 / US$184 / ¥24510 / AUD$260

ST69AF0: Dolomite

Druse of crystals with dominant rhombohedron faces. They are translucent and extraordinarily bright.
The sample is from the Francesco S. Stoppani collection (catalog number 0946), whose label we’ll send to the buyer. As is the case with so many specimens in this collection, the sample is of great quality for the locality.
Oberdorf an der Laming, Laming valley, Bruck an der Mur, Styria/Steiermark Austria
Specimen size: 7 × 6.7 × 3.7 cm = 2.76” × 2.64” × 1.46”

Main crystal size: 1.8 × 1.5 cm = 0.71” × 0.59”
Price: €440 / US$450 / ¥59930 / AUD$640

TB90AL4: Dolomite

Curious botryoidal Dolomite, uncommon in this locality, with smooth and silk-shiny surfaces and a soft pink color. The specimen has been analyzed and we will send the buyer a copy of the analysis.
Tsumeb Mine, Tsumeb, Otjikoto Region Namibia
Specimen size: 21.2 × 11.9 × 8 cm = 8.35” × 4.69” × 3.15”
Price: €480 / US$491 / ¥65380 / AUD$700

MR90AH7: Dolomite

Aerial group of sharp rhombohedral Dolomite crystals that are twinned and bright, between transparent and translucent, with phantom growths and fine alignments of black globular growths, probably Graphite, a Spanish classic.
Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Navarre, Autonomous Community of Navarre Spain
Specimen size: 8 × 7 × 5.5 cm = 3.15” × 2.76” × 2.17”

Main crystal size: 3.4 × 3 cm = 1.34” × 1.18”
Price: €480 / US$491 / ¥65380 / AUD$700

NLL16AO5: Dolomite (Fe-bearing dolomite)

Iron-bearing Dolomite crystals with a very pronounced saddle shape, with strong curvatures and polycrystalline growths, with good luster and a color between light brown and pink, on matrix. The specimen comes from the collection of Santiago Jiménez who, especially in the 1980s and '90s, managed to collect many rarities from urban and peri-urban areas of Northern Spain, very little disclosed before in the mineral collecting world.
El Covarón Mines, Covarón (Kobaron), Muskiz, Comarca Gran Bilbao, Bizkaia / Vizcaya, Euskadi Spain
Specimen size: 10 × 7.8 × 3.1 cm = 3.94” × 3.07” × 1.22”
Price: €110 / US$112 / ¥14980 / AUD$160

HM780EM: Dolomite (twinned)

Group of very sharp rhombohedral Dolomite crystals, transparent, with good luster, a slightly gray color and on matrix. An excellent Spanish classic.
Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Navarre, Autonomous Community of Navarre Spain (±1970)
Specimen size: 14.5 × 11.8 × 6.8 cm = 5.71” × 4.65” × 2.68”

Main crystal size: 5.5 × 3 cm = 2.17” × 1.18”
Price: €780 / US$798 / ¥106250 / AUD$1140

SD99AC3: Dolomite on Quartz and Chalcopyrite

Slightly deformed rhombohedral Dolomite crystals with a pale-brown to pinkish color, with small twinned Chalcopyrite crystals on their surfaces and on a base of Quartz crystals with a very poorly developed prism. It is an excellent German classic for the species and the locality. As is the case with so many specimens in this collection, the sample is of great quality for the locality.
Eupel Mine, Niederhövels, Wissen, Flammersfeld, Altenkirchen (Westerwald), Siegerland, Rhineland-Palatinate/Rheinland-Pfalz Germany
Specimen size: 17.8 × 10.2 × 4.4 cm = 7.01” × 4.02” × 1.73”
Price: €430 / US$440 / ¥58570 / AUD$630

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