Tucson Virtual 2021

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[TUCSON]:
A tradition.
A city devoted to the Show.
And the madness...
All this is Tucson!
Tucson  USA ( -> 1955)

TR89AM5: Group of translucent octahedral crystals with a pale green color with polycrystalline surfaces and partially covered by small groups of white Quartz crystals. Among the best possible quality for what is known from this mine.
Homestake-Jack Pot Mine, Black Mountains, Oatman District-San Francisco District, Mohave County, Arizona  USA

Specimen size: 7.3 × 5.7 × 4.9 cm = 2.87” × 2.24” × 1.93”

Main crystal size: 3.4 × 2.7 cm = 1.34” × 1.06”

TH92AM5: Group of flattened Quartz crystals with a distinct Japan-law twin. The crystals are transparent and lustrous and of a size and transparency greater than usual in specimens from this mine.
Washington Camp-Duquesne Mines, Patagonia Mountains, Washington Camp-Duquesne District, Santa Cruz County, Arizona  USA

Specimen size: 6.6 × 5.3 × 4.8 cm = 2.60” × 2.09” × 1.89”

Main crystal size: 4.5 × 3.3 cm = 1.77” × 1.30”

EX94AM5: Floater group with flattened crystals, with the dominant shapes of the cube and the dodecahedron, and very aesthetic elongated shapes.
Round Mountain Mine, Round Mountain, Round Mountain District, Nye County, Nevada  USA

Specimen size: 2.2 × 2.1 × 0.9 cm = 0.87” × 0.83” × 0.35”

Main crystal size: 1.8 × 0.6 cm = 0.71” × 0.24”

TF46AM5: Group of tabular crystals very rich in crystal forms, transparent, lustrous and with a vivid and uniform sky-blue color. The specimen is from a locality from which few quality specimens are known.
Shirley Basin, Medicine Bow, Shirley Basin District, Carbon County, Wyoming  USA

Specimen size: 5.4 × 4.4 × 3.4 cm = 2.13” × 1.73” × 1.34”

Main crystal size: 2.1 × 1.5 cm = 0.83” × 0.59”

TD29AM5: Lenticular Rhodochrosite crystals that cover a matrix of Quartz crystals, with a second generation of epitactic Rhodochrosite that preserves the missing Quartz crystal forms. Good quality for the Rhodochrosites from this locality.
Los Remedios Mine, Taxco de Alarcón, Municipio Taxco, Guerrero  Mexico

Specimen size: 9 × 6.7 × 5.1 cm = 3.54” × 2.64” × 2.01”

NC14AM5: Groups of small crystals of Tennantite-(Fe), with very bright luster, forming parallel growths in some areas and with the dominant faces of a tetrahedron accompanied by minor forms. On matrix, associated with lustrous twinned crystals of Chalcocite. This specimen, which came from the last find before the definitive closure of open pit exploitation at this mine, has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain (01/2020)

Specimen size: 4.4 × 3.6 × 0.7 cm = 1.73” × 1.42” × 0.28”

Main crystal size: 1 × 0.2 cm = 0.39” × 0.08”

NC47AM5: Groups of small crystals of Tennantite-(Fe), with very bright luster, forming parallel growths in some areas and with the dominant faces of a tetrahedron accompanied by minor forms. On matrix, associated with lustrous twinned crystals of Chalcocite. This specimen, which came from the last find before the definitive closure of open pit exploitation at this mine, has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain (01/2020)

Specimen size: 7.5 × 6.6 × 1 cm = 2.95” × 2.60” × 0.39”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”

NP16AM5: Group of snow-white Baryte crystals with transparent Fluorite crystals of pale lilac color, covered by small and very shiny white Quartz crystals. A classic of Spanish mineralogy but at the same time different due to the brilliant Quartz that covers everything. The specimen is from the Pedro Hernández collection.
Berbes mining area, Berbes, Ribadesella, Comarca Oriente, Asturias, Principality of Asturias  Spain

Specimen size: 9.1 × 6.7 × 5.5 cm = 3.58” × 2.64” × 2.17”

NQ53AM5: Druse of transparent yellow Fluorite crystals, largely covered by very sharp lamellar crystals of Baryte, lustrous, transparent and with a pale yellow color, with complex white Calcite crystals and small rhombohedral Dolomite crystals. Very different from other specimens from this popular locality.
Moscona Mine, El Llano, Solís, Corvera de Asturias, Comarca Avilés, Asturias, Principality of Asturias  Spain (2018)

Specimen size: 16.1 × 12.7 × 8.8 cm = 6.34” × 5.00” × 3.46”

NB7AM5: Polycrystalline growth of complex Sphalerite crystals with curvatures and with the smooth forms of the tetrahedron. The crystals, between transparent and translucent, have a very dense, deep and uniform caramel color.
Las Mánforas Mine, Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 3.8 × 3.4 × 2.7 cm = 1.50” × 1.34” × 1.06”

MF98AM5: Groups of crystals of Sphalerite with the dominant forms of the tetrahedron, transparent, with good luster and a very intense and vivid green color (variety cleiophane) on a matrix covered by white rhombohedral Dolomite crystals. The specimen is very different from what is usually seen at this locality both in color and in general appearance.
Las Mánforas Mine, Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 13.2 × 8.8 × 6.9 cm = 5.20” × 3.46” × 2.72”