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Black and white. But its luster, perfection and the nice soft white Mica give a great contrast... For me it is like a jewel with its unquestionable quality.
Pingwu Mine, Huya township, Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province China (2002)
Specimen size: 5 × 4 × 3.5 cm = 1.97” × 1.57” × 1.38”

AQ96D4: Cassiterite with Mica

The crystals are not that big but the luster in incredible! The Mica is also nice, and the Cassiterite crystal's form is excellent.
Pingwu Mine, Huya township, Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province China (2002)
Specimen size: 8.7 × 7 × 3 cm = 3.43” × 2.76” × 1.18”

Main crystal size: 1.5 × 0.8 cm = 0.59” × 0.31”

AV27M4: Cassiterite with Mica and Feldspar

Actually it is quite difficult to obtain Cassiterite specimens from this locality. Very sharp faces and edges, excellent brilliance and unusual transparency, and on matrix.
Merekski District, Bureya Massif, Khabarovsk Krai Russia
Specimen size: 4.9 × 4.2 × 4.8 cm = 1.93” × 1.65” × 1.89”

TT67H3: Cassiterite with Mica and Fluorite

Well-defined and esthetic group of twinned crystals of Cassiterite on a matrix of crystallized Muscovite. On one side of the Cassiterite is a crystallization of Fluorite (fluorescent under UV light) which is very uncommon for the locality.
Pingwu Mine, Huya township, Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province China (2005)
Specimen size: 7.4 × 5.5 × 4 cm = 2.91” × 2.17” × 1.57”

JFD188AP3: Cassiterite with Muscovite

Different from the classic 'tin twins' so typical there, and also with a little more luster than usual. I bought it from a collector in Madrid and I liked it for that difference from what is usually seen in that mine.
Penouta Mines, Penouta (San Bartolomé), Viana do Bolo, Comarca Viana, Orense / Ourense, Galicia / Galiza Spain
Specimen size: 5 × 3.3 × 2.9 cm = 1.97” × 1.30” × 1.14”

NH66AH3: Cassiterite with Muscovite

Geometry and a very intense luster characterize this twin of two crystals, a twin that is splendidly well defined and that has the added “touch” of very sharp laminar and perfectly defined Muscovite crystals.
Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province China (2017)
Specimen size: 3.8 × 2.7 × 2 cm = 1.50” × 1.06” × 0.79”

EBX49AP3: Cassiterite with Muscovite

Polycrystalline aggregate of twinned Cassiterite crystals, with very sharp crystal forms, extraordinarily lustrous and with a deep black color, on a matrix of very sharp lamellar Muscovite crystals.
Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province China
Specimen size: 6 × 4.4 × 3.1 cm = 2.36” × 1.73” × 1.22”

TM37AF6: Cassiterite with Muscovite

Isolated groups of twinned Cassiterite crystals with very well defined forms. The highly lustrous crystals are implanted on a rocky matrix coated by sharp, bright, laminar Muscovite crystals. Because of its size and quality, this could be called a “museum” specimen.
Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province China
Specimen size: 16.7 × 16.5 × 6.2 cm = 6.57” × 6.50” × 2.44”

Main crystal size: 3.8 × 3.6 cm = 1.50” × 1.42”

JK48W0: Cassiterite with Muscovite

Very sharp twinned crystal of Cassiterite. The crystal, black, is very bright, has parallel growths, a considerable size for the locality and it's partially coated by a leafy aggregate of Muscovite.
Barra de Salinas, Coronel Murta, Vale do Jequitinhonha, Minas Gerais Brazil
Specimen size: 4.9 × 3.3 × 3.9 cm = 1.93” × 1.30” × 1.54”

RK27T5: Cassiterite with Muscovite

Cyclic twinned crystals with sharp and very well defined faces and edges. They are translucent and extraordinarily bright and are on a matrix partially coated by Muscovite. A fine sample of one of the glorious epochs in Panasqueira.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal
Specimen size: 5.8 × 5 × 4.3 cm = 2.28” × 1.97” × 1.69”

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

AF38Y6: Cassiterite with Muscovite

Group of very bright crystals with notable transparency. They form complex cyclic twins and are slightly coated by Muscovite micro-crystals. The Cassiterite crystals have a very notable size for the locality.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal (1987-2013)
Specimen size: 3.7 × 2.7 × 2 cm = 1.46” × 1.06” × 0.79”

SM580ND: Cassiterite with Muscovite

Group of twinned crystals, very lustrous, black, on a matrix covered with lamellar Muscovite crystals. A heck of a piece!. Former collection of Miguel David Martínez
Number 69
Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province China
Specimen size: 8.7 × 8.33.5 cm cm = 3.43” × 3.28”

Main crystal size: 2 × 1.3 cm cm = 0.79” × 0.51”

MA48X8: Cassiterite with Muscovite

Single twinned Cassiterite crystal with very well defined faces and edges. It is very bright, has vivid brown transparency and its matrix is an aggregate of leafy Muscovite.
Pingwu Mine, Huya township, Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province China (2012)
Specimen size: 10 × 6.7 × 4.2 cm = 3.94” × 2.64” × 1.65”

DP98AF2: Cassiterite with Muscovite and Quartz (variety smoky)

Twinned Cassiterite crystals that are transparent and extraordinarily bright, with very well defined faces and edges. They are on a rocky matrix coated by Muscovite crystals and transparent smoky Quartz crystals.
The sample is from the Desmond Sacco collection, whose label we’ll send to the buyer.
Merekski District, Bureya Massif, Khabarovsk Krai Russia
Specimen size: 4.8 × 2.9 × 3.5 cm = 1.89” × 1.14” × 1.38”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”

AB47Y6: Cassiterite with Muscovite and Schorl-Dravite

Very aerial and almost floater group of very bright crystals that have notable transparency and form complex cyclic twins. They are on a rocky matrix, with Muscovite and small acicular tourmaline (Schorl-Dravite) crystals.
This specimen has been reviewed and published in the magazine ‘Lapis’ on page 43, volume 39, number 7-8, July-August 2014
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal (1987-2013)
Specimen size: 10.2 × 6.8 × 4.5 cm = 4.02” × 2.68” × 1.77”

TLA14AO0: Cassiterite with Quartz

Very aerial group of cyclic Cassiterite twins, with sharp crystal forms, translucent, with very bright luster and a deep color. On matrix, with small Quartz crystals. We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
Viloco Mine, Loayza Province, La Paz Department Bolivia
Specimen size: 2.2 × 1.8 × 1.4 cm = 0.87” × 0.71” × 0.55”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

CC13AM1: Cassiterite with Quartz

Angular twin of two prismatic Cassiterite crystals, lustrous, with a range of shades between cream and dark brown, on a Quartz matrix.
The specimen, a classic from an old historic Spanish mine, comes from the Carles Curto collection, whose label and catalogue entry we will send to the buyer.
La Luceta Mine, Vecinos, Municipio Vecinos, Comarca Campo de Calatrava, Salamanca, Castile and León Spain (±1971)
Specimen size: 2.2 × 1.7 × 1.6 cm = 0.87” × 0.67” × 0.63”

SV2180TJD: Cassiterite with Quartz

Complex Cassiterite crystal showing polycrystalline growths on the faces of the crystal with dark brown tones, embedded in a matrix of Quartz. It comes from an already extinct deposit exploited for beryllium, molybdenum and tin, and worked since Roman times. A real oldie.
La Villeder, Le Roc-Saint-André, Vannes, Morbihan, Brittany/Bretagne France (±1900)
Specimen size: 5.2 × 4 × 2.5 cm = 2.05” × 1.57” × 0.98”

Main crystal size: 1.9 × 1.5 cm = 0.75” × 0.59”

TBR96AO5: Cassiterite with Quartz

Twinned Cassiterite crystals, with very sharp crystal forms, lustrous, on matrix, with Quartz crystals. A classic English example of the "old school", very difficult to find today.
Camborne - Redruth - Saint Day District, Cornwall England / United Kingdom
Specimen size: 9.4 × 7.8 × 4.4 cm = 3.70” × 3.07” × 1.73”

TFR26AN4: Cassiterite with Quartz

Group of twinned Cassiterite crystals with sharp crystal forms, lustrous and on matrix, something not common in specimens from this classic locality. This piece is from the Alain Martaud collection.
La Villeder, Le Roc-Saint-André, Vannes, Morbihan, Brittany/Bretagne France (±1900)
Specimen size: 5.2 × 2.8 × 4.4 cm = 2.05” × 1.10” × 1.73”

Main crystal size: 2 × 1.4 cm = 0.79” × 0.55”

SV3230ETF: Cassiterite with Quartz

This is truly a rarity. Coming from Engineer Fernando Soares Carneiro, it is an isolated Cassiterite crystal, a floater of very good size, which comes from a locality about which I, personally, knew almost nothing, besides that it was part of the group of tin mines in the Tras-os-Montes area. In short, this is a super-rarity and its quality, for such a little known locality, is reasonable.
Ribeira Mine, Coelhoso, Bragança, Bragança District, Norte Region Portugal
Specimen size: 5.3 × 3.9 × 2.7 cm = 2.09” × 1.54” × 1.06”

SV2240TFR: Cassiterite with Quartz

Complex Cassiterite crystal with marked “tin peak” twinning, showing polycrystalline growths on the crystal faces, with dark brown tones, embedded in a matrix of Quartz. It comes from an already extinct deposit exploited for beryllium, molybdenum and tin, and worked since Roman times. A real oldie.
La Villeder, Le Roc-Saint-André, Vannes, Morbihan, Brittany/Bretagne France (±1900)
Specimen size: 6.2 × 3.6 × 2.7 cm = 2.44” × 1.42” × 1.06”

Main crystal size: 4.6 × 3.8 cm = 1.81” × 1.50”

EFR97AP3: Cassiterite with Quartz

Twinned Cassiterite crystal, very aerial on matrix, with very sharp crystal forms, between transparent and translucent, with very bright luster and with color zoning, denser in the center of the crystal.
Amo deposit, Ximeng, Pu'er Prefecture, Yunnan Province China
Specimen size: 3.6 × 2.4 × 2.2 cm = 1.42” × 0.94” × 0.87”

ER53AM5: Cassiterite with Quartz

Twinned Cassiterite crystals, on matrix, with Quartz crystals. The crystals have very well defined faces and edges, they are transparent to translucent and dark brown in color. The luster and size of the crystal are extraordinary. One of the best pieces found in this locality.
Amo deposit, Ximeng, Pu'er Prefecture, Yunnan Province China (2002)
Specimen size: 11.8 × 9.7 × 7.5 cm = 4.65” × 3.82” × 2.95”

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

AM47N2: Cassiterite with Quartz

Group of crystals with a very well defined twinning. They are bright and extraordinarily transparent, aerial and well isolated on the matrix, just like small jewels.
Amo deposit, Ximeng, Pu'er Prefecture, Yunnan Province China
Specimen size: 5.3 × 4.4 × 4 cm = 2.09” × 1.73” × 1.57”

12722 results found.

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