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Gold with Quartz.
TE10G5: Gold with Quartz
The most prominent crystallization on the Quartz matrix is really a single, elongated, crystal of an exceptional length. In this group there are also the typical flat crystals from Eagle’s Nest, and some others that are quite well defined octahedra.
Eagle's Nest Mine, Sage Hill, Michigan Bluff District, Placer County, California  USA (2003)
Specimen size: 4 × 3.2 × 1.3 cm = 1.57” × 1.26” × 0.51”
Price: [SOLD]
Gold with Quartz.
MZ16W9: Gold with Quartz
A novelty at Munich 2012. Dendritic growths of laminar, elongated and wirelike crystals on Quartz matrix. The locality, not well known, had offered rare samples of Gold of this quality.
This specimen was photographed and published as a novelty at the 2012 Munich Show of the magazine ‘Mineralien Welt’ and appears on page 28 of number 1/2013
Mina San Luis, Chala, Caraveli, Arequipa  Peru (08/2012)
Specimen size: 2.6 × 1.8 × 1.8 cm = 1.02” × 0.71” × 0.71”
Price: [SOLD]
Gold with Quartz.
TA59AB5: Gold with Quartz
Mossy and dendritic growths on a Quartz matrix. The sample was found at the beginning of the twenties of the last century in a rural area, at this time, on the São Paulo periphery, an area that was afterwards absorbed and built up with the quick growth of the city. It is obviously a rarity, very difficult to obtain today.
Morro Doce area, Jaraguá, Perus, São Paulo, São Paulo State  Brazil (±1920)
Specimen size: 0.8 × 0.4 × 0.2 cm = 0.31” × 0.16” × 0.08”
Price: [SOLD]
Gold with Quartz.
TD10AB5: Gold with Quartz
Mossy and dendritic growths on a Quartz matrix. The sample was found at the beginning of the twenties of the last century in a rural area, at this time, on the São Paulo periphery, an area that was afterwards absorbed and built up with the quick growth of the city. It is obviously a rarity, very difficult to obtain today.
Morro Doce area, Jaraguá, Perus, São Paulo, São Paulo State  Brazil (±1920)
Specimen size: 0.6 × 0.4 × 0.4 cm = 0.24” × 0.16” × 0.16”
Price: [SOLD]
Gold with Quartz.
TE60AB5: Gold with Quartz
Mossy and dendritic growths on a Quartz matrix. The sample was found at the beginning of the twenties of the last century in a rural area, at this time, on the São Paulo periphery, an area that was afterwards absorbed and built up with the quick growth of the city. It is obviously a rarity, very difficult to obtain today.
Morro Doce area, Jaraguá, Perus, São Paulo, São Paulo State  Brazil (±1920)
Specimen size: 0.6 × 0.5 × 0.4 cm = 0.24” × 0.20” × 0.16”
Price: [SOLD]
Gold with Quartz.
TC60AB5: Gold with Quartz
Mossy and dendritic growths on a Quartz matrix. The sample was found at the beginning of the twenties of the last century in a rural area, at this time, on the São Paulo periphery, an area that was afterwards absorbed and built up with the quick growth of the city. It is obviously a rarity, very difficult to obtain today.
Morro Doce area, Jaraguá, Perus, São Paulo, São Paulo State  Brazil (±1920)
Specimen size: 0.7 × 0.5 × 0.2 cm = 0.28” × 0.20” × 0.08”
Price: [SOLD]
Gold with Quartz.
TC56X5: Gold with Quartz
Mossy and dendritic growths on Quartz matrix. The sample was found, at the beginning of the twenties of the last century, on a rural area, at this time, on the São Paulo periphery, area that was afterwards absorbed and built up when the quick growing of the city. It is obviously a rarity, very difficult to obtain today.
Morro Doce area, Jaraguá, Perus, São Paulo, São Paulo State  Brazil (±1920)
Specimen size: 1 × 0.5 × 0.6 cm = 0.39” × 0.20” × 0.24”
Price: [SOLD]
Gold with Quartz.
EA68Y4: Gold with Quartz
Laminar, skeletal and spongy Gold growths. The color and luster, both are very intense, contrast with the Quartz matrix that in some areas is well crystallized and shows a good development of pyramidal faces. The locality is very unusual.
Municipio Nacozari de García, Sonora  Mexico
Specimen size: 4.3 × 3.9 × 2.7 cm = 1.69” × 1.54” × 1.06”
Price: [SOLD]
Gold with Quartz.
TD90AB3: Gold with Quartz
Slightly rounded pebble, very rich in cavities and relief, with diffuse parallel aggregates and feebly defined, but present, crystalline forms and included Quartz fragments.
Peixoto de Azevedo River, Terra Nova do Norte, Amazonas, Mato Grosso  Brazil
Specimen size: 1.9 × 1.1 × 0.8 cm = 0.75” × 0.43” × 0.31”
Price: [SOLD]
Gold with Quartz.
TG79M9: Gold with Quartz
Mossy-arborescent growth of lamellar, very bright, crystals on Quartz. Due to its color, lighter than usual for Gold, and to the frequent presence on the locality of the variety Electrum, rich in Silver, we think it is effectively this variety.
Rosia Montana, Apuseni Mountains, Alba, Transylvania  Romania (±1860)
Specimen size: 8.5 × 7.8 × 7.7 cm = 3.35” × 3.07” × 3.03”
Price: [SOLD]
Gold with Quartz.
EZ16W9: Gold with Quartz
Dendritic growths of extraordinarily bright crystals, elongated and very flattened, on a rocky matrix with Quartz. An European classic with an old label that we’ll send to the buyer.
Rosia Montana, Apuseni Mountains, Alba County, Transylvania  Romania
Specimen size: 3.4 × 2.3 × 2 cm = 1.34” × 0.91” × 0.79”
Price: [SOLD]
Gold with Quartz.
TB97X8: Gold with Quartz
Very aerial aggregates of Gold crystals on Quartz matrix. The aggregates show the so-called ”herringbone” shape, with marked parallel growths of very sharp octahedral crystals, without deformation and perfectly visible on terminations. An excellent sample from a classic American locality.
Round Mountain Mine, Round Mountain, Round Mountain District, Nye County, Nevada  USA (±2007)
Specimen size: 5.3 × 3.1 × 1.7 cm = 2.09” × 1.22” × 0.67”
Price: [SOLD]
Gold with Quartz.
ML27T8: Gold with Quartz
Very well defined laminar growths and very thin hooked crystals on Quartz matrix. The sample is from a locality that is rarely referenced in mineral collections.
From the Claus Hedegaard collection (num. 13579), whose label we’ll send to the buyer.
Witwatersrand field, Gauteng  South Africa
Specimen size: 3.4 × 2.8 × 2.2 cm = 1.34” × 1.10” × 0.87”
Price: [SOLD]
Gold with Quartz (variety chalcedony).
EJ67AG5: Gold with Quartz (variety chalcedony)
Small Gold crystals, some of them very well defined, with cube and octahedron faces, and on matrix with Quartz (chalcedony variety). The sample is from a Colombian mining area not well known until now.
La Providencia claim, La Providencia cut, Municipio Vetas, Soto Province, Santander Department  Colombia
Specimen size: 5.1 × 4.7 × 1 cm = 2.01” × 1.85” × 0.39”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”
Price: [SOLD]
Gold with Quartz (variety chalcedony).
EE48AL4: Gold with Quartz (variety chalcedony)
Arborescent growths and acicular and lamellar Gold crystals, with very good luster, on matrix and with Quartz (variety chalcedony) coatings. The specimen comes from a mining area in Colombia that is very little known so far.
La Peter II concession,La Peter open pit, Municipio Vetas, Soto Province, Santander Department  Colombia
Specimen size: 7.6 × 4.1 × 2.3 cm = 2.99” × 1.61” × 0.91”
Price: [SOLD]
Gold with Quartz and Malachite.
TC2460EAK: Gold with Quartz and Malachite
Dendritic growths of Gold in a Quartz matrix with metallic sulphides and with Malachite concretions. This rare combination of Gold with the green of Malachite is very aesthetic.
Bleida Far West Mine, Tinzouline, Zagora Province, Drâa-Tafilalet Region  Morocco (2017-2018)
Specimen size: 5.7 × 5.3 × 4.8 cm = 2.24” × 2.09” × 1.89”
Price: [SOLD]
Gold with Quartz and Pyrite.
TGH27AN5: Gold with Quartz and Pyrite
A recent find in 2021 yielded these elegant Gold specimens. This piece shows excellent crystallization, with the dominant forms of the octahedron in highly stylized parallel growths and with distinct twinning according to the spinel law, but, above all, it is in a Quartz matrix with coatings of small Pyrite crystals, which until now has been extremely rare. The 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 (01/2021)
Specimen size: 5 × 4.7 × 3 cm = 1.97” × 1.85” × 1.18”
Price: €2200 / US$2343 / ¥358950 / AUD$3610
Gold with Quartz and Sphalerite.
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”
Price: €370 / US$394 / ¥60360 / AUD$600
Gold with Quartz and Sphalerite.
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”
Price: [SOLD]
Gold with Quartz and Sphalerite.
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”
Price: €1600 / US$1704 / ¥261050 / AUD$2620
Gold with Quartz, Malachite and Chrysocolla.
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”
Price: €520 / US$553 / ¥84840 / AUD$850
Gold with Quartz, Pyrite and Sphalerite.
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”
Price: [SOLD]
Gold with Rhodochrosite.
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”
Price: [SOLD]
Gold with Rodalquilarite, Jarosite and Quartz.
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”
Price: [SOLD]
Gold with Skutterudite.
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”
Price: [SOLD]

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Expominerals		 Updates
Updates		 Minerals - Virtual Museum (#MVM)
Minerals - Virtual Museum
(#MVM)