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ST86AJ5: Marcasite with Calcite-Dolomite and Chalcopyrite
Very sharp “cockscomb-like” aggregates of Marcasite crystals that are very bright and on a matrix of massive Chalcopyrite with white growths of Calcite-Dolomite crystals.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal
Specimen size: 11.2 × 7.8 × 3.6 cm = 4.41” × 3.07” × 1.42”
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EK67W2: Marcasite with Chalcopyrite
A novelty at St. Marie 2012. Very rich irregular aggregate of very flattened crystals of Marcasite that show, very well marked, the twin known as "cockscomb". They are extraordinarily bright, with small disphenoidal crystals of Chalcopyrite, and have skeletal forms, especially on the back side of the sample, that reveal holes left by former tabular crystals, probably Baryte.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (12/2011-01/2012)
Specimen size: 9.3 × 6.4 × 4.2 cm = 3.66” × 2.52” × 1.65”

Main crystal size: 1.1 × 0.3 cm = 0.43” × 0.12”
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JFD07AN5: Marcasite with Dolomite
Reocín Marcasite is dangerous because it tends to decompose relatively easily, especially in humid climates like Barcelona's. For some reason this piece has remained 'healthy' despite the many years it has resided in my collection. I do not know whether the Dolomite, pinker than usual in Reocín, has anything to do with its good preservation, but the fact is that here it is, resisting the passage of time quite nicely.
Reocín Mine, Reocín, Comarca Saja-Nansa, Cantabria  Spain (±1985)
Specimen size: 5.4 × 4.3 × 3.7 cm = 2.13” × 1.69” × 1.46”
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TA57AH7: Marcasite with Pyrite and Calcite-Dolomite
Very sharp isolated Marcasite aggregates with the typical “cockscomb” shape. They have very well defined faces and edges and are implanted on a polycrystalline Fluorite growth with Siderite.
That sample from the Alain Martaud collection came from François Lietard (Minerive) and we will send both labels to the buyer.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal
Specimen size: 7.4 × 6.3 × 2.9 cm = 2.91” × 2.48” × 1.14”

Main crystal size: 1.8 × 1.7 cm = 0.71” × 0.67”
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AN96M6: Marcasite with Pyrite, Arsenopyrite, Calcite and Dolomite
Group of twinned (this twin is known in German as “sperkise”) crystals of Marcasite, sharp, very well defined and bright, with groups of small cubic crystals of Pyrite and with Siderite and Calcite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (1998)
Specimen size: 6.4 × 4.8 × 2.7 cm = 2.52” × 1.89” × 1.06”
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EX96AI7: Marcasite with Quartz
Very aerial rosette growths of very sharp and strongly flattened Marcasite crystals with extreme curving, intensely bright and on a Quartz matrix.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (04/2018)
Specimen size: 7 × 6.8 × 4.3 cm = 2.76” × 2.68” × 1.69”
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JFD50AN8: Marcasite with Siderite and Muscovite
Marcasite is a mineral with a bad reputation since it is less stable than other iron sulphides, but the vast majority of Marcasites from Panasqueira are very stable since they are not usually pure marcasites but epitactic intergrowths of Arsenopyrite-Marcasite and that gives them great stability. This particularly elegant specimen is very well preserved despite the number of years I've had it and despite the fact that I live in a city with very high humidity, which does not help the conservation of sensitive species.
Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (12/2014)
Specimen size: 7.2 × 5.4 × 3.1 cm = 2.83” × 2.13” × 1.22”
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RF16M9: Marcasite-Arsenopyrite with Quartz and Siderite
Very well defined and bright "cockscomb" growths of Marcasite with Quartz crystals partially covered by small lenticular crystals of Siderite and with Pyrite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1982)
Specimen size: 6.6 × 5.7 × 5 cm = 2.60” × 2.24” × 1.97”

Main crystal size: 2.8 × 2.2 cm = 1.10” × 0.87”
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GM47AM9: Marialite
Isolated crystal of Marialite with sharp and finely striated prisms and polycrystalline terminations, transparent (gem quality), with good luster and an intense yellow color. This specimen, from a classic Brazilian locality, comes from the Pedro Goy collection, whose label we will send to the buyer.
Aracruz, Espirito Santo, Sudeste Region  Brazil (±1980)
Specimen size: 4.1 × 1.7 × 1.7 cm = 1.61” × 0.67” × 0.67”
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DR59I1: Marialite-Meionite (Scapolite Group)
The gemmy quality of this miniature is surprising, both for its transparency and its esthetic color. We also note the definition of faces and edges of the prismatic crystal.
Badakhshan Province  Afghanistan (2004)
Specimen size: 1.7 × 0.7 × 0.6 cm = 0.67” × 0.28” × 0.24”
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MM26AM8: Marialite-Meionite (Scapolite Group)
Scapolite (Group) crystal, very rich in crystal forms, with excellent terminations and very transparent and lustrous, gem quality, with a uniform yellow color.
We will send the buyer the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Mpwapwa District, Dodoma Region  Tanzania
Specimen size: 2 × 0.9 × 0.8 cm = 0.79” × 0.35” × 0.31”
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MK61R9: Marialite-Meionite (Scapolite Group)
A doubly terminated floater crystal, completely transparent, bright, slightly yellowish. Both terminations are excellent.
Karur District, Tamil Nadu  India (2010)
Specimen size: 2.8 × 0.7 × 0.6 cm = 1.10” × 0.28” × 0.24”
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MC6R5: Marialite-Meionite (Scapolite Group)
A novelty in Munich 2010. A doubly terminated single crystal with very uniform transparency and color, pale yellow, showing fine vertical striations and an excellent termination with slightly curved faces and edges.
This specimen was photographed and published as a novelty at the 2010 Munich Show in the magazine ‘Le Règne Minéral’ number 96, page 39 and the magazine ‘Rivista Mineralogica Italiana’ on page 51 in number 2011/1
Karur District, Tamil Nadu  India (2010)
Specimen size: 4.9 × 0.8 × 0.7 cm = 1.93” × 0.31” × 0.28”
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EJH99AQ1: Maucherite with Calcite
Radial growths of acicular Maucherite crystals, with bright luster and a metallic grey color, on Calcite matrix. The specimen, a German classic that is practically impossible to find today, comes from the Moutet collection (Marseille)
Mansfeld-Südharz District, Saxony-Anhalt/Sachsen-Anhalt  Germany
Specimen size: 5.9 × 5.7 × 4.3 cm = 2.32” × 2.24” × 1.69”

Main crystal size: 2 × 1 cm = 0.79” × 0.39”
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TFH16AP9: Meionite with Vesuvianite
Prismatic microcrystals of Vesuvianite, on matrix, with good luster and a deep green color, partially covered by white Meionite crystals. The specimen is from the type locality for both species and we will send the buyer the label that is attached to a wooden base that carries a wire support to display the piece, typical of very old collections.
Monte Somma, Somma-Vesuvius Complex, Metropolitan City of Naples, Campania  Italy
Specimen size: 4.4 × 2.6 × 2.4 cm = 1.73” × 1.02” × 0.94”
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XM260MLA: Melanophlogite with Calcite
Spherical aggregates formed by a skein of Melanophlogite crystals on a bed of lenticular Calcite crystals, with a very light grey color, on a Magnesite rock matrix. Melanophlogite is curious for being the first natural silica clathrate to be recognized, and is from a classical locality for the species.
Fortullino, Rosignano Marittimo, Livorno Province, Tuscany  Italy
Specimen size: 5.4 × 3.8 × 2.5 cm = 2.13” × 1.50” × 0.98”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”
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HM180EF: Mendipite
Columnar aggregates of Mendipite, a rare lead chloride, light in color with yellowish and pale pink hues. On matrix, with Galena.
The specimen comes from the area of the type locality for the species and as we normally do in these cases we will send the buyer a copy of the analysis.
Torr Works Quarry (Merehead Quarry), Cranmore, District Mendip, Somerset, South West England  England / United Kingdom
Specimen size: 3.8 × 2.2 × 1.6 cm = 1.50” × 0.87” × 0.63”
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TRM96AO3: Mereheadite with Mendipite
Microcrystalline aggregates of the rare Mereheadite, a lead halide with borate and carbonate ions. They are lustrous, a uniform deep yellow in color, and are associated with Mendipite, another rare white lead halide. On matrix, with Calcite and centered aggregates of acicular crystals (apparently Coronadite) Excellent UK classic from the type locality for both species.
Torr Works Quarry (Merehead Quarry), Cranmore, District Mendip, Somerset, South West England  England / United Kingdom
Specimen size: 5.8 × 4.6 × 2.4 cm = 2.28” × 1.81” × 0.94”

Main crystal size: 0.8 × 0.1 cm = 0.31” × 0.04”
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MF12R9: Mesolite with Heulandite-Ca and Laumontite
Slightly globular (so called "mushroom") growths of acicular crystals of Mesolite on a matrix of sharp Heulandite-Ca crystals and white aggregates of Laumontite.
Kannad, Aurangabad District, Maharashtra  India (08/2009)
Specimen size: 11.7 × 9.6 × 4.2 cm = 4.61” × 3.78” × 1.65”
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MC14P8: Mesolite with Heulandite-Ca and Laumontite
A novelty from Munich 2009. Yellowish globular growths of acicular crystals of Mesolite on a Heulandite-Ca matrix and with (analyzed) Laumontite.
Kannad, Aurangabad District, Maharashtra  India (08/2009)
Specimen size: 7.1 × 5.7 × 4.1 cm = 2.80” × 2.24” × 1.61”

Main crystal size: 4 × 3.2 cm = 1.57” × 1.26”
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MJ26P5: Mesolite with Heulandite-Ca and Laumontite
A novelty of Munich 2009. Yellowish globular growths of acicular crystals of Mesolite on a matrix of Heulandite-Ca and with Laumontite (analyzed).
Kannad, Aurangabad District, Maharashtra  India (08/2009)
Specimen size: 6.6 × 5.4 × 3.2 cm = 2.60” × 2.13” × 1.26”
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EB26P4: Mesolite with Stilbite
Radial sprays of white acicular crystals on Stilbite matrix. The sample is from a locality not well known until recently. The specimen has been carefully analyzed in order to confirm the species. With the sample we’ll send a copy of the analysis to the buyer.
Kannad, Aurangabad District, Maharashtra  India (08/2009)
Specimen size: 11.6 × 10.3 × 7.5 cm = 4.57” × 4.06” × 2.95”
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ED36P5: Mesolite with Stilbite-Ca
Globular aggregate of white acicular crystals of Mesolite with growths of Stilbite-Ca crystals and on a matrix of basalt.
Kannad, Aurangabad District, Maharashtra  India (08/2009)
Specimen size: 13 × 10.5 × 7 cm = 5.12” × 4.13” × 2.76”
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1M63: Mesolite, Heulandite-Ca, Laumontite
Slightly globular (so called "mushroom") growths of acicular Mesolite crystals on a matrix of sharp Heulandite-Ca crystals and white Laumontite crystals.
Kannad, Aurangabad District, Maharashtra  India (08/2009)
Specimen size: 13.0 × 5.7 × 4.7 cm = 5.12” × 2.24” × 1.85”

TPT76CD6: Metacinnabar with Cinnabar
Cinnabar crystals with their characteristic vermilion color, deposited on a rock matrix. The upper part of the specimen is highlighted by the presence of aggregates of small dark and lustrous Metacinnabar crystals. The specimen has been analyzed, and comes from the collection of Andrés Jiménez Shelly.
Las Cuevas Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±2013)
Specimen size: 7.6 × 5.3 × 5 cm = 2.99” × 2.09” × 1.97”

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