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EL88AI4: Gold with Quartz and Sphalerite
Very bright arborescent growths and acicular and leafy crystals of Gold on a Quartz matrix. . The sample is from a Colombian mining area not well known until now.
Los Delirios claim, Delirios III cut, Municipio Vetas, Soto Province, Santander Department  Colombia (02/2017)
Specimen size: 5.3 × 3.7 × 2.5 cm = 2.09” × 1.46” × 0.98”
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NA46AL6: Gold with Quartz and Sphalerite
Dendritic growths of Gold with dominant hackly, skeletal and lamellar shapes and very sharp small octahedral crystals. Very bright and on a Quartz matrix with small deformed sphalerite crystals.
The specimen comes via the collections of Raúl Sanabria Orellana and Ignacio Gaspar Sintes, whose labels we will send to the buyer.
Los Delirios claim, Delirios III cut, Municipio Vetas, Soto Province, Santander Department  Colombia (±2018)
Specimen size: 4.7 × 3.5 × 1.8 cm = 1.85” × 1.38” × 0.71”
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MFX66AP6: Gold with Quartz and Sphalerite
Dendritic growths of Gold crystals, very shiny, on a Quartz matrix, with growths of Sphalerite microcrystals. The Sphalerite has been analyzed and we will send a copy of the analysis to the buyer.
Timmins Mine, Township, Timmins area, Cochrane District, Ontario  Canada
Specimen size: 2.7 × 1.8 × 1.3 cm = 1.06” × 0.71” × 0.51”
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EG10AL5: Gold with Quartz, Malachite and Chrysocolla
Hook-shaped and lamellar growths of Gold (variety electrum), very elongated, doubly terminated, on matrix, with Quartz, botryoidal Malachite aggregates and lighter green Chrysocolla aggregates. These Golds are a curiosity and a rarity in collections since only a few specimens were found and for only a few months.
Bleida Far West Mine, Tinzouline, Zagora Province, Drâa-Tafilalet Region  Morocco (2017-2018)
Specimen size: 5.2 × 3.3 × 2.8 cm = 2.05” × 1.30” × 1.10”

Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”
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TF13M9: Gold with Quartz, Pyrite and Sphalerite
The piece is not especially showy but it is from a very uncommon locality. The Gold mineralization is a concentrated area of small grains on a Quartz matrix that has small Pyrite crystals and massive Sphalerite.
Banska Hodrusa Mine, Hodrusa-Hámre  Slovak Republic (1997)
Specimen size: 6.6 × 5.3 × 3.2 cm = 2.60” × 2.09” × 1.26”
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EP91AF9: Gold with Rhodochrosite
Elongated cubo-octahedral gold crystals with very well defined and bright faces and edges in a very rare association with rhombohedral Rhodochrosite crystals that partially coat a rocky matrix. The sample is from a not yet well-known Colombian mining area.
The specimen's photo has been reviewed and published in the magazine ‘Rocks & Minerals’ on page 224 in the volume 96, number 3, May/Jun 2021, and it has been published in the book 'Gold - monograph -', by Joaquim Callén, on page 219
Potosí claim, La Tosca cut, Municipio Vetas, Soto Province, Santander Department  Colombia (2017)
Specimen size: 2 × 1.7 × 1.2 cm = 0.79” × 0.67” × 0.47”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”
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NH13Z1: Gold with Rodalquilarite, Jarosite and Quartz
The sample is richer in Gold than usual in the samples from this classic Spanish locality. The Gold forms spongy aggregates in vugs in the Quartz matrix, that have very visible green crusts and aggregates of Rodalquilarite microcrystals. From the type locality for Rodalquilarite.
340 vein, Rodalquilar, Níjar, Comarca Metropolitana de Almería, Almería, Andalusia  Spain (2012)
Specimen size: 2.5 × 1.5 × 1.4 cm = 0.98” × 0.59” × 0.55”
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MT96AK8: Gold with Skutterudite
Individual filamentous growths of Gold implanted on a matrix with cubo-octahedral Skutterudite crystals.
The specimen's photo has been reviewed and published in the magazine ‘Rocks & Minerals’ on page 219 in the volume 96, number 3, May/Jun 2021
Taghouni, Bou Azzer mining district, Amerzgane, Ouarzazate Province, Drâa-Tafilalet Region  Morocco (±2015)
Specimen size: 1.7 × 1.6 × 1 cm = 0.67” × 0.63” × 0.39”

Main crystal size: 0.5 × 0.1 cm = 0.20” × 0.04”
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MV86AK8: Gold with Skutterudite and Erythrite
Individual filamentous growths of Gold implanted on a matrix with cubo-octahedral crystals of Skutterudite and small crystals of Erythrite.
Taghouni, Bou Azzer mining district, Amerzgane, Ouarzazate Province, Drâa-Tafilalet Region  Morocco (±2015)
Specimen size: 1.2 × 1.2 × 0.6 cm = 0.47” × 0.47” × 0.24”
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MT87AK8: Gold with Skutterudite and Erythrite
Individual filamentous growths of Gold implanted on a matrix with cubo-octahedral crystals of Skutterudite and small crystals of Erythrite.
Taghouni, Bou Azzer mining district, Amerzgane, Ouarzazate Province, Drâa-Tafilalet Region  Morocco (±2015)
Specimen size: 2.3 × 1.7 × 1 cm = 0.91” × 0.67” × 0.39”

Main crystal size: 0.6 × 0.1 cm = 0.24” × 0.04”
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MR48AK8: Gold with Skutterudite and Erythrite
Individual filamentous growths of Gold implanted on a matrix with cubo-octahedral crystals of Skutterudite and small crystals of Erythrite.
Taghouni, Bou Azzer mining district, Amerzgane, Ouarzazate Province, Drâa-Tafilalet Region  Morocco (±2015)
Specimen size: 2.3 × 2 × 1.1 cm = 0.91” × 0.79” × 0.43”
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EP68AH1: Gold with Sphalerite
Very aerial laminar Gold growth, on a rocky matrix with black Sphalerite crystals and aggregates of micro-crystalline Quartz. The sample is from a not yet well-known Colombian mining area.
Los Delirios claim, Delirios III cut, Municipio Vetas, Soto Province, Santander Department  Colombia (02/2017)
Specimen size: 2.3 × 1.4 × 1.2 cm = 0.91” × 0.55” × 0.47”

Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”
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SM390TH: Gold with Sphalerite
Leafy and hackly growths of native Gold, very bright, on a surface of Sphalerite crystals that cover the matrix. The specimen comes from a mining area in Colombia that is so far very little known.
Los Delirios claim, Delirios III cut, Municipio Vetas, Soto Province, Santander Department  Colombia (04/2017)
Specimen size: 4.5 × 4.3 × 2.3 cm cm = 1.77” × 1.69” × 0.91”
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EH90AG5: Gold with Sphalerite and Quartz
Leafy growths of Gold on a rocky matrix with black Sphalerite crystals and aggregates of Quartz micro-crystals. The sample is from a Colombian mining area not well known until now.
Los Delirios claim, Delirios III cut, Municipio Vetas, Soto Province, Santander Department  Colombia (02/2017)
Specimen size: 5.3 × 3.1 × 2.9 cm = 2.09” × 1.22” × 1.14”

Main crystal size: 0.9 × 0.3 cm = 0.35” × 0.12”
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9MV16: Gold, Quartz
From a very recent find in the area of Western Sahara in Morocco, with the specific location yet to be determined, this specimen of Gold, very well crystallized and with brilliant luster, displays a sharply defined morphology, with the dominant forms of the octahedron, twinned according to the spinel law, and minor Quartz. We will see what the future of the locality holds for these high quality absolute novelties. This material has been carefully analyzed, and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (2020)
Specimen size: 0.8 × 0.5 × 0.2 cm = 0.31” × 0.20” × 0.08”
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9ME96: Gold, Quartz
From a very recent find in the area of Western Sahara in Morocco, with the specific location yet to be determined, this specimen of Gold, very well crystallized and with brilliant luster, displays a sharply defined morphology, with the dominant forms of the octahedron, twinned according to the spinel law, and minor Quartz. We will see what the future of the locality holds for these high quality absolute novelties. This material has been carefully analyzed, and we will send a copy of the analysis to the buyer.
Aouint Ighoman, Assa-Zag Province, Guelmim-Oued Noun Region  Morocco (2020)
Specimen size: 2.3 × 0.5 × 0.15 cm = 0.91” × 0.20” × 0.06”
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MF11AA6: Gormanite with Quartz
Fan-shaped aggregates of grayish green, acicular Gormanite crystals on matrix with small Quartz crystals. The locality is a classic one for the species. The specimen has a label of John. S. White that we will send to the buyer.
Rapid Creek area, Dawson mining district, Yukon Territory  Canada
Specimen size: 7.4 × 5.3 × 2.6 cm = 2.91” × 2.09” × 1.02”
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MF6AD4: Gormanite with Siderite and Wardite
Sprays and radial aggregates of acicular Gormanite crystals that have a grayish-green color. They are on matrix with brown rhombohedral Siderite crystals and small white dipyramidal Wardite crystals. A very fine piece.
Crosscut Creek, Kulan Camp area, Rapid Creek area, Dawson mining district, Yukon Territory  Canada (07/1995)
Specimen size: 4 × 3.2 × 2.6 cm = 1.57” × 1.26” × 1.02”
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ED56AL5: Grandidierite
Undoubtedly one of the best, if not the best, uncut Grandidierite crystal found in the deposit, both for the perfection of its crystal forms and for its luster, transparency and color intensity, as well as for its gem quality. All this made it worthy of being on the cover of the German magazine Mineralien Welt, and it was also featured in the Mineralogical Record.
This specimen is on the front cover of the 'Mineralien Welt' edition 06/2019, and has been reviewed, photographed and published as a new discovery of Munich 2019 in the ‘Mineralogical Record’ on page 380 in the volume 51, number 2, May-April 2020, and in the Russian magazine ‘Mineral Observer’ on page 85 in the volume 26/2021, number 1
Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (09-10/2018)
Specimen size: 1.1 × 1 × 0.8 cm = 0.43” × 0.39” × 0.31”
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MY87AE2: Grandidierite
A novelty at Tucson 2016. An isolated crystal, translucent, bright, with a uniform and intense bluish-green color, with very well defined and deeply striated prismatic faces for the species. Of an excellent quality for this rare silicate.
Grandidierite deposit, Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (05-12/2015)
Specimen size: 2.4 × 2.2 × 1 cm = 0.94” × 0.87” × 0.39”
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ETX89AQ1: Grandidierite
Floater group of Grandidierite crystals with very sharp crystal forms, translucent, shiny and of a deep and uniform greenish blue color.
Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar
Specimen size: 2.2. × 1.7 × 0.7 cm = 0.87” × 0.67” × 0.28”

TZZ54CD6: Grandidierite
Grandidierite crystal of considerable size for the species, of a very uniform and deep bluish green color, and accompanied in the base of the crystal by a pseudomorph, possibly after Tourmaline, replaced by minerals whose species could not be clearly identified, beyond being a mixture of silica gel with remnants of Opal. Mineralogy never ceases to surprise us, and certainly the pegmatites of Madagascar do not stop surprising us.
Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar
Specimen size: 4.1 × 3.4 × 1.2 cm = 1.61” × 1.34” × 0.47”

Main crystal size: 4.1 × 3.1 cm = 1.61” × 1.22”
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TTV68AP8: Grandidierite with Feldspar
Grandidierite floater crystal with unusually well developed crystal forms, translucent, and with an intense and uniform blue-green color. An excellent classic from Madagascar.
Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar
Specimen size: 3.2 × 2.2 × 1.4 cm = 1.26” × 0.87” × 0.55”
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TP50AH2: Grandidierite with Feldspar
Very sharp flattened and complete crystal (on the base it has small fragments of a feldspar matrix) with very well defined faces and edges and a perfect termination, slightly rough but free of damage. It is translucent and has a very deep and uniform bluish-green color. Among the best for this very rare species, a classic from Madagascar.
Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (02-06/2017)
Specimen size: 2.9 × 2.3 × 0.8 cm = 1.14” × 0.91” × 0.31”

Main crystal size: 2.9 × 1.6 cm = 1.14” × 0.63”
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TM49AI2: Grandidierite with Feldspar
Some minerals are fortunate, either for the time they were discovered, or by the circumstances of their discovery or even by the place where they were found and beyond their greater or lesser beauty, of having become true myths of mineralogy. This is what happens with the Grandidierite of which, in addition, recent discoveries of an exceptional quality have been made to date, as is the case with this splendid individual flattened crystal with faces and edges unusually sharp and with the top termination very well defined while the lower termination is polycrystalline and somewhat rough. The crystal is bright, between transparent and translucent and it has a very deep and uniform bluish-green color.
Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (02-06/2017)
Specimen size: 3.9 × 1 × 0.3 cm = 1.54” × 0.39” × 0.12”

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The Oliete
Collection
The Jan Buma Collections
The Jan Buma
Collections
The James Catmur Collection
The James Catmur
Collections
The Silvane Collection
The Silvane
Collection
The Pedro Goy Collection
The Pedro Goy
Collection
The Desmond Sacco Collection
The Desmond Sacco
Collection
Best Specimens
Best Specimens
The Folch Collection
The Folch
Collection
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