Siderite 


  • Two groups of vivianite crystals, very brilliant, transparent and with an intense green color. They show a prismatic appearance, defined and in parallel growth. Disposed on a ...

    Ref: 1B054

    Location: CABECA DO CACHORRO CLAIN, SÂO GRABRIEL DA CACHOEIRA AMAZONAS, BRAZIL.

    Dimensions: 9.1 X 6 X 1.8 cm.

    435 €
  • Ludlamite specimens from Trepca are increasingly difficult to see. In this specimen, good crystals of this phosphate stands out, with an intense green color, transparence and ...

    Ref: 1E098

    Location: TREPCA COMPLEX, TREPCA VALLEY, KOSOVSKA MITROVICA, DISTRICT OF KOSOVSKA MITROVICA, KOSOVO.

    Dimensions: 5.9 X 5.1 X 2.8 cm.

    450 € In Stock
  • A curious siderite after calcite preserving rhombohedral habit and also tabular and rounded forms. Color is toasted honey but varies between yellow to brown, with good ...

    Ref: 1J002

    Location: TURT OAS, SATU MARE, ROMANIA

    Dimensions: 31 X 15 X 14 cm.

    1 330 € Disponible
  • A very curious specimen formed by a main complex quartz crystal with some other in perpendicular growth. Tha sample is partially covered by thin acicular schorl-dravite ...

    Ref: 1P011

    Location: PANASQUEIRA MINES, BEIRA BAIXA, PORTUGAL

    Dimensions: 9.3 X 5 X 3.1 cm.

    205 € Out of stock
    Out of stock
  • Lenticular siderite crystal with a good size and very brilliant surface. With a matrix formed by small muscovite crystals, quartz and fluorapatite. Fluorescence UVC. THE MAIN ...

    Ref: 1P014

    Location: PANASQUEIRA MINES, BEIRA BAIXA, PORTUGAL

    Dimensions: 13.5 X 7.8 X 7 cm.

    240 € Disponible
  • A rich group of siderite rhombohedral flattened crystals growing in a lenticular shape. Accompanied by some fluorapatite crystals with a marked hexagonal shape, green color and ...

    Ref: 1P050

    Location: PANASQUEIRA MINES, BEIRA BAIXA, PORTUGAL

    Dimensions: 12.1 X 6.3 X 2.5 cm.

    265 € Disponible
  • Outstanding yellow-pale brown siderite globular aggregate which predominates over the remaining associated minerals, arsenopyrite, moscovite and chalcopyrite, all of them well ...

    Ref: 1P105

    Location: PANASQUEIRA MINES, BEIRA BAIXA, PORTUGAL

    Dimensions: 12.5 X 11.7 X 4.5 cm.

    460 € Disponible
  • Group of siderite crystals with honey tones and translucent. They show deformed rhombohedra forms remembering the octahedron. On a minor matrix. Very curious for this mine.

    Ref: 1P132

    Location: PANASQUEIRA MINES, BEIRA BAIXA, PORTUGAL

    Dimensions: 3.2 X 2.9 X 1.3 cm.

    95 € Disponible
  • A very unusual specimen. This is a group of siderite crystals with a very curious pseudoctahedral shape. Also emphasize on hoppered group of crystals. On a matrix with ...

    Ref: 1P153

    Location: PANASQUEIRA MINES, BEIRA BAIXA, PORTUGAL

    Dimensions: 4.9 X 4.4 X 3 cm.

    145 € Disponible
  • Aesthetic specimen showing well developed crystals of siderite, with a greenish color, showing parallel growth of flattened crystals. They are accompanied by fluorapatite, ...

    Ref: 1P220

    Location: PANASQUEIRA MINES, BEIRA BAIXA, PORTUGAL.

    Dimensions: 6 X 5.1 X 2.3 cm.

    180 € In Stock
  • Panasqueira never ceases to amaze us. In this specimen we can enjoy a large group of fluorapatite crystals, very brilliant and with transparence, with a very attractive green ...

    Ref: 1P236

    Location: PANASQUEIRA MINES, BEIRA BAIXA, PORTUGAL

    Dimensions: 6.8 X 5 X 3 cm.

    845 € In Stock
  • A very interesting combo of flattened siderite rhombohedral crystals of intense greenish color and brilliance. They are accompanied by quartz, muscovite, a group of ...

    Ref: 1P240

    Location: PANASQUERIA MINES, BEIRA BAIXA, PORTUGAL

    Dimensions: 6.5 X 8 X 3.5 cm.

    545 € In Stock
  • Group of fluorite crystals, with evident cubic symmetry, with well-defined faces and edges and a marked color zoning, combining blue with violet. Good transparence. On a matrix ...

    Ref: 1P256

    Location: MINAS DE PANASQUEIRA, BEIRA BAIXA, PORTUGAL.

    Dimensions: 4 X 3.7 X 3.1 cm.

    400 € In Stock
  • Group of arsenopyrite crystals, with an excellent luster and interpenetrating with each other. On them has grown a group of cubic crystals of violet fluorite, with geometric ...

    Ref: 1P258

    Location: MINAS DA PANASQUEIRA, ADEIA DA SAO FRANCISCO DE ASSIS, COVILHA, CASTELO, BRANCO, COVA DA BEIRA, PORTUGAL

    Dimensions: 5.8 X 4.9 X 2 cm.

    205 € Out of stock
    Out of stock
  • On a matrix of quartz with siderite there are numerous doubly terminated crystals of fluorapatite, of intense luster, transparency and a bluish color with banded color zoning. ...

    Ref: 1P265

    Location: MINAS DA PANASQUEIRA, ALDEIA DE SÃO FRANCISCO DE ASSIS, COVILHA, CASTELO BRANCO, COVA DA BEIRA, PORTUGAL

    Dimensions: 9.6 X 7.8 X 4.9 cm.

    545 € Out of stock
    Out of stock
  • Of this hyaline quartz crystal we want to highlight its definition and the numerous inclusions of dravite-chorlo, which appear as needles included in it. The transparency of ...

    Ref: 1P275

    Location: MINAS DA PANASQUEIRA, ALDEIA DE SÃO FRANCISCO DE ASSIS, COVILHA, CASTELO BRANCO, COVA DA BEIRA, PORTUGAL.

    Dimensions: 6.3 X 3.3 X 1.9 cm.

    75 € In Stock
  • Complete specimen that shows us a fluorapatite crystal with marked color zoning, and very well defined faces and edges, with brilliance. It is accompanied by aggregates of ...

    Ref: 1P281

    Location: MINAS DA PANASQUEIRA, ALDEIA DE SÃO FRANCISCO DE ASSIS, COVILHA, CASTELO BRANCO, COVA DA BEIRA, PORTUGAL.

    Dimensions: 5.1 X 4.9 X 4.2 cm.

    170 € Out of stock
    Out of stock
  • Very curious siderite pseudomorph after calcite. Well defined rhombohedrons totally covered (by perimorphic processes) by a new generation of small siderite crystals. This ...

    Ref: 1R085

    Location: TURT, OAS SATU MARE, ROMANIA

    Dimensions: 7.9 X 7.7 X 2.5 cm.

    120 € Disponible
  • Very curious siderite pseudomorph after calcite. Well defined rhombohedron totally replaced (by perimorphic processes) by a new generation of small siderite crystals. This ...

    Ref: 1R086

    Location: TURT, OAS SATU MARE, ROMANIA

    Dimensions: 6.1 X 5.8 X 3.5 cm.

    75 € Disponible
  • Well defined rhombohedrons totally substituted by a new generation of small siderite crystals (by perimorphic processes). Accompanied by pyrite crystals. THE MAIN CRYSTAL IS: ...

    Ref: 1R114

    Location: TURT, OAS SATU MARE, ROMANIA

    Dimensions: 6.9 X 5.3 X 3.5 cm.

    85 € Disponible
  • Well defined rhombohedrons totally covered (by perimorphic processes) by a new generation of small siderite crystals. This specimen is perfect to show different siderite ...

    Ref: 1R125

    Location: TURT, OAS SATU MARE, ROMANIA

    Dimensions: 12.5 X 7.7 X 3.5 cm.

    195 € Disponible
  • Globular aggregates of pale tan siderite formed by crystals of the mineral and associated to rounded quartz crystals. Good contrast between quartz and siderite. As a curiosity, ...

    Ref: 1R276

    Location: TURT, OAS, SATU MARE, ROMANIA

    Dimensions: 8.7 X 7.9 X 4.4 cm.

    195 € Disponible
  • The beauty of this specimen must be considered by the disposition of the acicular to prismatic stibnite crystals emerging from the vugs of the siderite matrix. Good luster –not ...

    Ref: 1R940

    Location: HERJA MINE, BAIA MARE, ROMANIA

    Dimensions: 14.5 X 12.2 X 11.3 cm.

    775 € In Stock
  • On a matrix of small crystals of siderite they are disposed very aerial various prismatic crystals of vivianite in parallel growth, with very defined top terminal faces, thick, ...

    Ref: 1V160

    Location: HUANINE MINE, HUANUNI, DALENCE, ORURO BOLIVIA

    Dimensions: 8.4 X 6.7 X 2.1 cm.

    970 € In Stock

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