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Mineral specimens search results for [ Siderite ]Page bottom

Siderite with Quartz and Arsenopyrite.
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$89 / ¥12820 / AUD$130
Siderite with Quartz and Arsenopyrite.
NM16F4: Siderite with Quartz and Arsenopyrite
The Siderite has formed an intensely colored, rose-like spray of crystals, which cover the Quartz. On these lenticular crystals there are some crystals of Arsenopyrite.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (2004)
Specimen size: 10.7 × 7 × 8.5 cm = 4.21” × 2.76” × 3.35”

Price: [SOLD]
Siderite with Quartz and Baryte.
ED89Y9: Siderite with Quartz and Baryte
Aggregates of very flattened lenticular Siderite crystals on a matrix of Quartz crystals with very sharp white rhombohedral Calcite crystals and a Baryte crystal with very well defined faces and edges, a very rare species at Le Mure.
La Mure coal mines, La Mure, Matheysine-Trièves, Grenoble, Isère, Auvergne-Rhône-Alpes  France
Specimen size: 12.7 × 12.5 × 4 cm = 5.00” × 4.92” × 1.57”

Price: [SOLD]

TC280NCG: Siderite with Quartz and Calcite
Siderite crystal with a lenticular shape, with bright luster and light brown color, attached to a Quartz crystal and covered by small Calcite crystals.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±2004)
Specimen size: 8 × 4.7 × 4.6 cm = 3.15” × 1.85” × 1.81”

Main crystal size: 4.7 × 4.3 cm = 1.85” × 1.69”

Price: €80 / US$79 / ¥11400 / AUD$110
Siderite with Quartz and Fluorapatite.
N12TK0: Siderite with Quartz and Fluorapatite
Group of first generation crystals, so they are translucent and have an excellent color and luster. On the Siderite there is a small group of tabular Fluorapatite crystals and Quartz crystals. This type of first generation Siderite is very uncommon at Panasqueira.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (1995)
Specimen size: 6.6 × 4.4 × 2.1 cm = 2.60” × 1.73” × 0.83”

Price: [SOLD]
Siderite with Quartz and inclusions.
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$124 / ¥17810 / AUD$180
Siderite with Quartz and Pyrite.
ND16G4: Siderite with Quartz and Pyrite
Rhombohedrons are very defined and its rough surface is a product of re-crystallization of the same Siderite. Crystals are aerial on a matrix of Quartz crystals with little crystallizations of Pyrite.
Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare  Romania (2003)
Specimen size: 8.5 × 5.8 × 3.9 cm = 3.35” × 2.28” × 1.54”

Price: [SOLD]
Siderite with Quartz with Ferberite inclusions.
EXB67AP1: Siderite with Quartz with Ferberite inclusions
Very aerial group of lenticular Siderite crystals of considerable size, one of them clearly dominant and very aerial, light cream in color and implanted on a crystal of Quartz with inclusions of small Ferberite crystals.
Minas da Panasqueira, levels 0-1, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (2021)
Specimen size: 12.7 × 7.4 × 5.4 cm = 5.00” × 2.91” × 2.13”

Main crystal size: 7.4 × 6.1 cm = 2.91” × 2.40”

Price: €260 / US$258 / ¥37050 / AUD$387
Siderite with Quartz, Chalcopyrite and Muscovite.
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$149 / ¥21370 / AUD$220
Siderite with Quartz, Fluorapatite and Dravite-Schorl.
NA59AM8: Siderite with Quartz, Fluorapatite and Dravite-Schorl
Group of very sharp lenticular crystals of Siderite with polycrystalline growths, with good luster and a light cream color. On matrix, with crystals of Fluorapatite, Quartz and small acicular crystals of Dravite-Schorl. Very original and with a higher quality than usual in this locality.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (1998)
Specimen size: 7.7 × 4.1 × 6 cm = 3.03” × 1.61” × 2.36”

Main crystal size: 5.2 × 4.1 cm = 2.05” × 1.61”

Price: [SOLD]
Siderite, Dolomite, Quartz.
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: [SOLD]
Siderite, Quartz, Arsenopyrite, Muscovite, Pyrite.
16NF13: Siderite, Quartz, Arsenopyrite, Muscovite, Pyrite
A plate formed by an aggregate of Muscovite crystals, interspersed with some lustrous Arsenopyrite crystals with well defined faces and edges, as well as water-clear Quartz crystals, one of them clearly dominant and with very marked growth striations. This combo is further adorned by a group of light brown lenticular Siderite crystals with a darker outline, some of them scattered and more isolated while others have grown on the Quartz crystals. Finally, a small group of Pyrite crystals completes the specimen. As so often happens with Panasqueira specimens, we can observe part of the paragenesis of the mine in a single piece.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal
Specimen size: 11.0 × 10.0 × 3.0 cm = 4.33” × 3.94” × 1.18”

Main crystal size: 1.0 × 0.9 cm = 0.39” × 0.35”

Price: [SOLD]

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