Stannite - Mineral specimens search results

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Mineral specimens search results for [ Stannite ]

NH16X9: Arsenopyrite with Stannite, Calcite and Pyrite

Parallel polycrystalline Arsenopyrite growths with dark gray Stannite intergrowths and leafy Muscovite aggregates, partially coated by small white Calcite crystals and aggregates of cubic Pyrite crystals. We’ll send a copy of the analysis of the Arsenopyrite to the buyer.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (2001)
Specimen size: 6.7 × 5.4 × 4.1 cm = 2.64” × 2.13” × 1.61”

NC16I7: Chalcopyrite with Stannite, Arsenopyrite and Galena

Complex crystals of Chalcopyrite, very bright and with clearly curved faces and edges, covered by Stannite forming a crust, with minor Galena and prismatic crystals of Arsenopyrite. Interesting and original.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (2004)
Specimen size: 10.8 × 7.3 × 5.3 cm = 4.25” × 2.87” × 2.09”

NV27X9: Chalcopyrite with Stannite, Arsenopyrite and Muscovite

Brass-colored Chalcopyrite crystals with superficial iridescence, with slightly golden dark gray Stannite intergrowths. They are on matrix, with Arsenopyrite crystals and Muscovite coatings. We’ll send a copy of the analysis of the Stannite to the buyer.
This specimen has been reviewed and published in the magazine ‘Lapis’ on page 49, volume 39, number 7-8, July-August 2014
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (2004)
Specimen size: 10.5 × 8.8 × 6.3 cm = 4.13” × 3.46” × 2.48”

NK14X9: Fluorapatite with Siderite, Quartz, Stannite and Arsenopyrite

Curious tabular Fluorapatite crystal with very well marked parallel growths. It is translucent, with Arsenopyrite inclusions and on matrix, with Arsenopyrite, Quartz, Siderite and Stannite crystals. We’ll send a copy of the analysis of the Fluorapatite to the buyer.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (1998)
Specimen size: 4.6 × 3.9 × 3.9 cm = 1.81” × 1.54” × 1.54”

Main crystal size: 2.9 × 1.5 cm = 1.14” × 0.59”

AA27AC9: Quars with Siderite, Stannite, Chalcopyrite and Pyrite

Transparent Quartz crystal, coated by very pale lenticular Siderite crystals and dark Sphalerite aggregates coated by Stannite and with small Chalcopyrite and Pyrite crystals. The sample is from the Alain Martaud collection, whose label we’ll send to the buyer.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (1987-2013)
Specimen size: 8.5 × 4.2 × 4 cm = 3.35” × 1.65” × 1.57”

TA53G9: Stannite (twinned) with Zinkenite

Twinned, giant (for the species) and sharp crystals of Stannite. It came from the finds of old miners in the famous San José Mine. The sample is exceptional both for the quality of Stannite and its esthetics and for the presence of acicular crystals of Zinkenite.
The specimen's photo has been reviewed and published in the magazine ‘Rocks & Minerals’ on page 460 in the volume 81, number 6, and in the magazine ‘extraLAPIS - English edition’ on page 31, number 12, "Bolivia".
San José Mine, Oruro City, Cercado Province, Oruro Department Bolivia (10/2004)
Specimen size: 4 × 2.3 × 1.7 cm = 1.57” × 0.91” × 0.67”

Main crystal size: 2.1 × 1.4 cm = 0.83” × 0.55”

TR26I1: Stannite on Quartz and Ferberite

The sample is magnificent both for its size and the quality and definition of the groups of Stannite crystals on Quartz with Ferberite. The specimen had been analyzed to confirm it is really Stannite and not Sphalerite, because on Chinese samples such confusion is possible.
The specimen has been published in the book 'China', by Berthold Ottens, on page 526
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province China (±2000)
Specimen size: 11.2 × 9.2 × 6.7 cm = 4.41” × 3.62” × 2.64”

NF11X9: Stannite with Chalcopyrite and Arsenopyrite

Stannite and Chalcopyrite intergrowths. The Stannite is slightly golden dark gray and the Chalcopyrite shows a brass color. The complexity of these growths, the poor definition of crystalline forms and the fact that Stannite also frequently substitutes for Sphalerite, resulted in Stannite having been almost unnoticed at Panasqueira. We’ll send a copy of the analysis to the buyer.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (2004)
Specimen size: 5 × 2.1 × 3.3 cm = 1.97” × 0.83” × 1.30”

AB68AD6: Stannite with Chalcopyrite, Pyrite, Marcasite, Siderite and Calcite

Epigenic growth of very small Stannite crystals on a single Chalcopyrite crystal, with Siderite crystals, Calcite coatings and small Marcasite and Pyrite crystals partially coating the Stannite. We’ll send a copy of the analysis of the Stannite to the buyer of this sample.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (1987-2013)
Specimen size: 8.5 × 5.7 × 2.9 cm = 3.35” × 2.24” × 1.14”

TAZ76AO3: Stannite with Muscovite and Arsenopyrite

Group on matrix of lustrous dark grey Stannite crystals whose faces and edges show very pronounced curvatures. The Stannite contrasts with the lamellar crystals of Muscovite and the crystals of Arsenopyrite, which are very sharp and have a lighter metallic tone. We will send the buyer the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province China
Specimen size: 2.3 × 2 × 2.1 cm = 0.91” × 0.79” × 0.83”

Main crystal size: 1.3 × 1.1 cm = 0.51” × 0.43”

NQ60F4: Stannite with Sphalerite and Arsenopyrite

A curious and unusual form. The crystals of Sphalerite have such curved edges and faces that they appear to be almost spherical. The Stannite is a fine coating, which makes the Sphalerite appear satin. At the base there are some prismatic, well-developed crystals of Arsenopyrite that make this one seem aerial and esthetic.
Minas da Panasqueira, level 3, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal (2004)
Specimen size: 4.2 × 3.2 × 2.7 cm = 1.65” × 1.26” × 1.06”

9AF27Q0: Stannite, Arsenopyrite, Quartz

Botryoidal growths of Stannite crystals whose faces and edges have very pronounced curvatures, of deep grey color, with very well defined crystals of Arsenopyrite and Quartz. The piece has a slight fissure but the matrix is stable. The Stannite, which in this locality is easily confused with Sphalerite, has been properly analyzed and we’ll send a copy of the analysis to the buyer. A mine that has produced excellent world-class examples of Fluorite and interesting sulphides.
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province China (2004)
Specimen size: 6.2 × 5.4 × 3.9 cm = 2.44”

Main crystal size: 0.3 × 0.2 cm = 0.12”

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