The Core of Tucson Show Virtual 2021

TC100NV

Druse of complex equant crystals of Sphalerite, translucent, with good luster and a very deep toasted honey color, on matrix, with Calcite. From a find from the beginning of the second decade of this century in an abandoned mine whose Calcites and Barytes were already known, and which has now offered these specimens of Sphalerite of better quality than previous ones.

María Jesús Mine (Lobeto Mine), Sol Viejo, Cabanzón, Herrerías, Comarca Saja-Nansa, Cantabria Spain (2012-2013)

Specimen size: 8.1 x 6.4 x 4.4 cm

Main crystal size: 1.1 x 1 cm

TC95NP

Group of Pyromorphite crystals, on matrix, with a prismatic habit, many of them doubly terminated, with good luster and a yellowish brown color. The specimen comes from an unexpected find in 1995 in an old lead mining area already exploited in Roman times and known for previous Pyromorphite finds, although with a different appearance from this specimen.

Resuperferolítica claim, Cerro de la Canaleja, Santa Eufemia, Comarca Los Pedroches, Córdoba, Andalusia Spain (04/1995)

Specimen size: 3.1 x 2.8 x 2.4 cm

Main crystal size: 0.8 x 0.2 cm

TC95NA

Very aerial group of Pyromorphite crystals with a prismatic habit, many of them doubly terminated, with good luster and a yellowish brown color. The specimen comes from an unexpected find in 1995 in an old lead mining area already worked in Roman times and known for previous Pyromorphite finds, although with a different appearance from this specimen.

Resuperferolítica claim, Cerro de la Canaleja, Santa Eufemia, Comarca Los Pedroches, Córdoba, Andalusia Spain (04/1995)

Specimen size: 3.9 x 2.2 x 1.8 cm

Main crystal size: 1 x 0.3 cm

TC220NZ

Group of very sharp Bornite pseudomorphs after Chalcocite crystals, as thick twins with a hexagonal outline, with very well defined faces and edges, brilliant and with intense metallic iridescence. The Bornite appears on a matrix with Calcite crystal coatings. These specimens have 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: 7.1 x 5.3 x 2.6 cm

Main crystal size: 0.6 x 0.3 cm

TC280NC

Growth of very sharp crystals of Chalcocite that form thick twins with a hexagonal outline, with very well defined and shiny faces and edges, on matrix, covered by Calcite crystals and Pyrite microcrystals. These specimens have been analyzed and we will send a copy of the analysis to the buyer.

Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia Spain (01/2019)

Specimen size: 7.1 x 6.4 x 3.6 cm

Main crystal size: 1 x 1 cm

TC180ET

A novelty at Sainte Marie-aux-Mines 2016. Platy Ilmenite crystals with irregular contours and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with daylight or neon light. Partially coated by Microcline crystals.
The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. We’ll send to the buyer a copy of the analyses done on the different species present in the samples.

Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)

Specimen size: 5.1 x 4 x 1.8 cm

Main crystal size: 1.6 x 1.4 cm

TC280EJ

A novelty at Sainte Marie-aux-Mines 2016. Platy Ilmenite crystals with irregular contours and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with daylight or neon light. Partially coated by Microcline crystals.
The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. We’ll send to the buyer a copy of the analyses done on the different species present in the samples.

Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)

Specimen size: 6.4 x 3.3 x 1.8 cm

Main crystal size: 1.1 x 0.6 cm

TC260EX

A novelty at Sainte Marie-aux-Mines 2016. Platy Ilmenite crystals with irregular contours and completely pseudomorphed by Rutile, coated by very sharp Titanite crystals that are bright, with very well defined faces and edges, and with a very apparent pleochroism that shows a yellow color under led light but is greenish with daylight or neon light. Partially coated by Microcline crystals.
The process of replacement of Ilmenite by Rutile seems very similar to that of other localities with similar geological conditions (by example the Zambian Rutile) and it is due to hydrothermal processes at the site. We’ll send to the buyer a copy of the analyses done on the different species present in the samples.

Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco (2016)

Specimen size: 5.2 x 4.7 x 3 cm

Main crystal size: 1 x 0.4 cm