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Barrel-shaped crystals of Siderite on a group of Quartz crystals and small crystals of Arsenopyrite and Pyrite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal (1997)
Specimen size: 7.2 × 6.4 × 5.2 cm = 2.83” × 2.52” × 2.05”
Price: €100 / US$107 / JPY11550 / AUD$160

NC64G8: Siderite with Quartz

An encrustation of little crystals of Siderite covers the rhombohedral terminal faces of a Quartz prism. Two of the crystals have a big size enhancing from the group.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal (2004)
Specimen size: 11.1 × 6.2 × 5 cm = 4.37” × 2.44” × 1.97”
Price: €110 / US$118 / JPY12700 / AUD$180

NY13AB1: Siderite with Quartz and Arsenopyrite

Aggregate of prismatic Siderite crystals with pinacoidal terminations. They have a very uniform dark brown color and silky luster due to microcrystalline surfaces on the prisms. The Siderite is with a small matrix of Quartz and Arsenopyrite and has cubic Pyrite microcrystals on its faces. Unlike most Panasqueira Siderite, this sample lacks the typically dull creamy second generation, which makes it very showy.
Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal (11/2014)
Specimen size: 4.3 × 3.3 × 2 cm = 1.69” × 1.30” × 0.79”
Price: €90 / US$97 / JPY10390 / AUD$150

E12EK9: Siderite with Quartz and inclusions

Flattened rhombohedral Siderite crystal group, covering Quartz and small crystals of Arsenopyrite and Pyrite some of them included on the Quartz.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal (1997)
Specimen size: 11.8 × 8.6 × 5.5 cm = 4.65” × 3.39” × 2.17”

Main crystal size: 1.7 × 1.6 cm = 0.67” × 0.63”
Price: €125 / US$134 / JPY14440 / AUD$210

NC76AB5: Siderite with Quartz, Chalcopyrite and Muscovite

Aggregate of lenticular Siderite crystals, one of them clearly dominant, with very well defined faces and edges and on a crystalline Quartz matrix with leafy Muscovite aggregates and a very well defined Chalcopyrite crystal.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal (2004)
Specimen size: 11.4 × 5.5 × 3.2 cm = 4.49” × 2.17” × 1.26”
Price: €150 / US$161 / JPY17320 / AUD$250

2L14: Siderite, Dolomite, Quartz

Sharp rhombohedral crystals of Dolomite, twinned, accompanied by lenticular crystals of light brown Siderite with very marked edges, in a matrix carpeted with water-clear crystals of Quartz.
La Mure coal Mines, La Mure, Matheysine-Trièves, Grenoble, Isère, Auvergne-Rhône-Alpes France (1994)
Specimen size: 5.0 × 3.7 × 3.2 cm = 1.97” × 1.46” × 1.26”
Price: €70 / US$75 / JPY8080 / AUD$110

CC56AL4: Silver

Aggregates of very elongated, fibrous Silver crystals, some of them with pronounced curvatures and fine dendritic growths and with small, poorly defined, Acanthite crystals.
The specimen comes from the Carles Curto collection, whose label and catalogue information we will send to the buyer.
Keeley-Frontier Mine, South Lorrain Township, Cobalt-Gowganda Region, Timiskaming District, Ontario Canada (±1966)
Specimen size: 2.1 × 2 × 1.2 cm = 0.83” × 0.79” × 0.47”
Price: €140 / US$151 / JPY16170 / AUD$235

MG74AF0: Silver

A wiry growth of strongly elongated crystals with the very well defined spinel law twin. An excellent European classic.
Kongsberg mining District, Kongsberg, Buskerud Norway
Specimen size: 5.9 × 3 × 1 cm = 2.32” × 1.18” × 0.39”

Main crystal size: 5.9 × 0.2 cm = 2.32” × 0.08”
Price: €940 / US$1015 / JPY108590 / AUD$1570

TP49X2: Silver

Fissure plate of micro-crystals on matrix. The sample is from an old find at Imiter, probably around the 1990'ts. Its luster and fresh aspect suggest that it has no mercury and it is native Silver and not the variety kongsbergite, very common at this locality.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (±1990)
Specimen size: 9.6 × 3.9 × 5.2 cm = 3.78” × 1.54” × 2.05”
Price: €440 / US$475 / JPY50830 / AUD$730

TZ89Q0: Silver

A scultural growth, very aerial and esthetic, of microcrystals with skeletal forms, on matrix. The piece is from an old find in Imiter, probably around the decade of the 90’s and unusual as the habitual has a crystalline aspect.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (±1990)
Specimen size: 6.8 × 5.5 × 2.9 cm = 2.68” × 2.17” × 1.14”

Main crystal size: 3.7 × 2.2 cm = 1.46” × 0.87”
Price: €490 / US$529 / JPY56600 / AUD$820

EB68AL0: Silver after Dyscrasite

Silver as fan-like pseudomorphs after very aerial and flattened crystals of Dyscrasite, in Calcite matrix.
Uranium Mine number 21 (shaft number 21), Háje, Příbram, Central Bohemia Region, Bohemia Czech Republic
Specimen size: 6.2 × 4.2 × 3.8 cm = 2.44” × 1.65” × 1.50”
Price: €340 / US$367 / JPY39280 / AUD$570

TG88AF4: Silver on Arsenic

Dendritic growths of strongly elongated native Silver twinned crystals that conserve very fresh surfaces contrasting with the black Arsenic matrix.
The sample is from a classic German locality and it is from the Vallecillo collection, from Madrid.
Pöhla-Tellerhäuser Mine, Pöhla, Schwarzenberg District, Erzgebirgskreis, Saxony/Sachsen Germany
Specimen size: 5.7 × 3.9 × 4.2 cm = 2.24” × 1.54” × 1.65”
Price: €360 / US$388 / JPY41590 / AUD$600

NR89AJ9: Silver on Calcite

Very aerial arborescent growths of native Silver on a Calcite matrix. The sample, esthetically very fine, is from a locality were native Silver is well known but only sporadically offers good pieces for
The sample is from the Ignacio Hernández collection whose label we will send to the buyer.
Uchucchacua Mine, Oyón Province, Lima Department Peru
Specimen size: 4.4 × 3.3 × 2.5 cm = 1.73” × 1.30” × 0.98”
Price: €460 / US$496 / JPY53140 / AUD$770

PX76AJ5: Silver with Acanthite and Calcite

Dendritic growths of very well defined, bright and elongated native Silver crystals, with small crystals and aggregates of Acanthite on a massive Calcite matrix.
Balcoll Mine, Falset, Comarca Priorat, Tarragona, Catalonia Spain (11/2004)
Specimen size: 4.6 × 2.8 × 1.5 cm = 1.81” × 1.10” × 0.59”
Price: €180 / US$194 / JPY20790 / AUD$300

PT48AI5: Silver with Acanthite and Calcite

Dendritic growths, on a matrix of massive Calcite, of elongated native Silver crystals that are very well defined and bright, partially coated by Acanthite crystals. The Calcite matrix has been etched with acid to expose the Silver.
Balcoll Mine, Falset, Comarca Priorat, Tarragona, Catalonia Spain (11/2004)
Specimen size: 6.1 × 5.2 × 3.5 cm = 2.40” × 2.05” × 1.38”
Price: €360 / US$388 / JPY41590 / AUD$600

PM96AJ5: Silver with Acanthite and Calcite

The sample on a massive Calcite matrix is uncommonly large. It has dendritic growths of very well defined elongated and bright crystals of native Silver with small crystals and aggregates of Acanthite.
Balcoll Mine, Falset, Comarca Priorat, Tarragona, Catalonia Spain (11/2004)
Specimen size: 15.2 × 12.6 × 4.7 cm = 5.98” × 4.96” × 1.85”
Price: €1900 / US$2051 / JPY219500 / AUD$3190

TV27AL3: Silver with Acanthite and Calcite

Aggregate of very elongated Silver crystals, with pronounced twists (“wire”), recognizable terminal faces, along with isolated Acanthite crystals, all implanted on a matrix covered with transparent, bright and colorless Calcite crystals. An excellent high quality German classic.
Freiberg District, Erzgebirgskreis, Saxony/Sachsen Germany (±1930)
Specimen size: 5 × 3.7 × 2.9 cm = 1.97” × 1.46” × 1.14”
Price: €2200 / US$2375 / JPY254160 / AUD$3690

ER94AK9: Silver with Acanthite and Quartz

Arborescent and aerial hooked growths of bright native Silver, on Quartz matrix with cuboid growths of Acanthite.
The specimen comes from the Christian Mondeilh collection (No. 0760/2006), whose label we will send to the buyer. Unlike other Imiter Silvers, it has very good aesthetics and good definition in the arborescent crystals.
Imiter Mine, shaft P3, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region Morocco (±2006)
Specimen size: 6.6 × 4.9 × 2.7 cm = 2.60” × 1.93” × 1.06”

Main crystal size: 3.4 × 2 cm = 1.34” × 0.79”
Price: €960 / US$1036 / JPY110900 / AUD$1610

EA9Y2: Silver with Actinolite

From an exceptional find in 2010 that provided excellent samples of Silver with Actinolite. In this case it is an aggregate of thick and elongated Silver crystals with very well defined faces and edges that are on a matrix of fibrous Actinolite. The Actinolite has been analyzed and we’ll send a copy of the analysis to the buyer.
Bouismas Mine, Bouismas, Tazenakht, Bou Azzer District, Zagora Province, Drâa-Tafilalet Region Morocco (2010)
Specimen size: 4.7 × 3.7 × 2.7 cm = 1.85” × 1.46” × 1.06”
Price: €400 / US$431 / JPY46210 / AUD$670

EB89Y2: Silver with Actinolite

From an exceptional find in 2010 that provided excellent samples of Silver with Actinolite. In this case it is an aggregate of thick and elongated Silver crystals with very well defined faces and edges that are on a matrix of fibrous Actinolite. The Actinolite has been analyzed and we’ll send a copy of the analysis to the buyer.
Bouismas Mine, Bouismas, Tazenakht, Bou Azzer District, Zagora Province, Drâa-Tafilalet Region Morocco (2010)
Specimen size: 4.7 × 3.1 × 2.3 cm = 1.85” × 1.22” × 0.91”

Main crystal size: 1.1 × 0.4 cm = 0.43” × 0.16”
Price: €490 / US$529 / JPY56600 / AUD$820

ED51Y2: Silver with Actinolite

From an exceptional find in 2010 that provided excellent samples of Silver with Actinolite. In this case with an aggregate of thick and elongated Silver crystals with very well defined faces and edges and on a matrix of fibrous Actinolite. The Actinolite has been analyzed and 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 in the Mineral World?’ section, report #35, August 14, 2013 edition.
Bouismas Mine, Bouismas, Tazenakht, Bou Azzer District, Zagora Province, Drâa-Tafilalet Region Morocco (2010)
Specimen size: 5.4 × 4.4 × 2.5 cm = 2.13” × 1.73” × 0.98”
Price: €640 / US$691 / JPY73930 / AUD$1070

AA63P9: Silver with amorphous hydrated (Si-Mn)

Wire growths of very much elongated crystals that have a good luster and are on matrix.
Uchucchacua Mine, Oyón Province, Lima Department Peru (01/2001)
Specimen size: 4.2 × 4 × 4.4 cm = 1.65” × 1.57” × 1.73”

Main crystal size: 2.7 × 0.7 cm = 1.06” × 0.28”
Price: €650 / US$701 / JPY75090 / AUD$1090

ET10AA7: Silver with Arsenopyrite silver-rich Tennantite and Pearceite

A curiosity: columnar Silver growths with only slightly defined crystalline surfaces, on matrix, with associated Arsenopyrite, silver-rich Tennantite and Pearceite. All the species on the sample have been analyzed and we will send a copy of the results to the buyer.
Bouismas Mine, Bouismas, Tazenakht, Bou Azzer District, Zagora Province, Drâa-Tafilalet Region Morocco (04/2014)
Specimen size: 2.2 × 1.9 × 1.3 cm = 0.87” × 0.75” × 0.51”
Price: €70 / US$75 / JPY8080 / AUD$110

EH92AD7: Silver with Calcite

A novelty at Sainte Marie-aux- Mines 2016. Very aerial arborescent growth, on a Calcite matrix, of bright crystals with their faces slightly deformed but well defined. No similar samples are known from this mine.
Tamdrost Mine, Bou Azzer District, Zagora Province, Drâa-Tafilalet Region Morocco (01-02/2016)
Specimen size: 5.7 × 4.6 × 2.6 cm = 2.24” × 1.81” × 1.02”

Main crystal size: 1 × 0.2 cm = 0.39” × 0.08”
Price: €780 / US$842 / JPY90110 / AUD$1310

DM48AI0: Silver with Copper

Floater and dendritic growth of very well defined and bright Silver crystals partially coated, especially at the tips of each crystal, by native Copper.
White Pine Mine, White Pine, Ontonagon County, Michigan USA
Specimen size: 2.9 × 2 × 0.2 cm = 1.14” × 0.79” × 0.08”
Price: €380 / US$410 / JPY43900 / AUD$630

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


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