| SE-01: Calcite
Santa Eulalia, Chihuahua
Specimen size: W: 11.0, D: 8.0, H: 6.0 cm
Description: On a matrix of strongly oxidized rock appear crusts of black Mn-oxides. Calcite crystals sitting on the matrix rock show partly a
deep red color due to tiny inclusions of Fe-oxides.
Price: 40 EUR |
| CH-01 : Mimetite on matrix
Santa Eulalia, Chihuahua
Specimen size: 9x6x3.5 cm
Description: lustrous
yellow-brown botryoidal mimetite balls on limonitic wall-rock.
Price: 50 EUR |
| CH-02 : Mimetite on matrix
Santa Eulalia, Chihuahua
Specimen size: 6.5x4x2.5 cm
Description: lustrous long-prismatic mimetite crystals to 3 mm growing on a white calcite matrix. The red-brown hexagonal shaped crystals are often hollow in the center along the C-axis.
Price: 45 EUR |
|
CH-04 : Mimetite
Santa Eulalia, Chihuahua
Specimen size: 4x3x2 cm
Description: cluster of massive, lustrous greenish botryoidal mimetite balls.
Price: 25 EUR |
|
CH-06 : Mimetite
Santa Eulalia, Chihuahua
Specimen size: 5x2.5x1 cm
Description: a piece of limonitic gossan is completely overgrown by a crust of lustrous tiny yellow mimetite crystals.
Price: 20 EUR |
|
CH-07 : Mimetite on matrix
Santa Eulalia, Chihuahua
Specimen size: 5.5x4x3 cm
Description: bright yellow acicular mimetite crystals to 4 mm in a cavity of a calcite-gossan breccia.
Price: 38 EUR |
| CH-08 : Mimetite on matrix
Santa Eulalia, Chihuahua
Specimen size: 5x3.5x2 cm
Description: spheres to 5 mm composed of tiny mimetite crystals of orange color are perched on calcite rhombohedrons to 4 mm, wall-rock is limonitic gossan. Orange colored mimetite is not very common.
Price: 50 EUR |
| NC-26: Anhydrite
Naica, Chihuahua
Specimen size: W: 10.0, D: 7.0, H: 9.0 cm
Description: Crystal group of light-blue anhydrite. The largest crystal is 10.5 cm long measuring at its base 4.5x3.0 cm.
Price: 90 EUR |
| NC-25: Fluorite Twin crystal
Naica, Chihuahua
Specimen size: W: 3.5, D: 3.5, H: 2.5 cm
Description: Crystals of colorless clear fluorite are associated with pyrite, galena, sphalerite and
botryoidal calcite. Only the largest fluorite crystal shows twinning (about 1 cm across), next to it an about 4x4 mm bournonite crystal. The fluorite cubes are modified by the faces (210) and (110).
Price: 20 EUR |
| NC-02: Anhydrite
Naica, Chihuahua
Specimen size: 15x6 cm
Description: light-blue anhydrite crystallized as blade with intergrown long-prismatic anhydrite crystals, on the specimen’s backside are sitting tiny calcite crystals.
Price: 65 EUR |
| |
| NC-05: Bournonite twin crystals
Naica, Chihuahua
Specimen size: 5x3x2 cm
Description: numerous steel-gray bournonite twin crystals (cog-wheel twins, Rädelerz) to a width of 7 mm (on both sides of the specimen) are associated with rounded galenite crystals and calcite crystals to 0.5 cm.
Price: 50 EUR |
|
| NC-06: Fluorite
Naica, Chihuahua
Specimen size: 2.3x3 cm
Description: Very nice thumbnail specimen with absolutely transparent pale-green fluorite crystal cluster (largest crystal in center 1.2x1.2 cm) with minor
galena-pyrite matrix. The fluorite exhibits cubic (100) and dodecahedral (110) faces.
Price: 45 EUR |
| NC-07: Fluorite
Naica, Chihuahua
Specimen size: W.3.5 D.2.8 H.3.0 cm
Description: white transparent fluorite crystal (2.4x1.8 cm)
perched on a matrix with galena and calcite. The fluorite crystal exhibits an extremely unusual distorted crystal habit representing a penetration twin of two individuals, both with a cube-octahedron-dodecahedron combination.
Price: 175 EUR |
| NC-08: Fluorite
Naica, Chihuahua
Specimen size: 5.3x3.0 cm
Description: Extraordinary fluorite penetration twin (4.5x2.5 cm) with a very unusual distorted tabular habit. The specimen consists of two intergrown fluorite individuals (rotated with 180º along the twin axis [111]), both with a cube-octahedron-dodecahedron combination. The two larger crystal faces located at each side of the tabular twin are
octahedral planes shared by both individuals. Some of the faces have a frosted appearance. The crystal is transparent but partly cloudy and zoned, it contains two small gas/fluid inclusions. Attached to the crystal are pieces of fluorite covered with tiny green calcite crystals and quartz crystals. Own collection. |
| NC-16: Anhydrite
Naica, Chihuahua
Specimen size: W: 5.5, D: 2.8, H: 11.0 cm
Description: A single thick-tabular anhydrite crystal with a nice light-blue color.
Price: 90 EUR |
| NC-19: Fluorite
Naica, Chihuahua
Specimen size: W: 5, D: 5, H: 4 cm
Description: A crystal group of water clear light green fluorite, largest individual crystals are about 2 cm across. Crystal habit is dominated by the cubic and octahedral faces, however there appear also small faces of the in
fluorite rarely observed hexoctahedral form (421). First occasion I have seen this at Naica.
Price: 180 EUR |
| NC-22: Green Quartz with calcite
Naica, Chihuahua
Specimen size: W: 6.5, D: 6.0, H: 4.0 cm
Description: On a matrix of
massive sphalerite-calcite are sitting lustrous green quartz crystals (1 to 2 cm in length) together with rhombohedral calcite crystals. A crust of quartz microcrystals covers the calcite. Inclusions of microscopically small chlorite balls form phantom-like zones and are the reason for the intense green color of the quartz. One of the best specimens from this new find.
Price: 250 EUR |
| NC-23: Green Quartz with calcite
Naica, Chihuahua
Specimen size: W: 3.7, D: 2.0, H: 3.5 cm
Description: A superb thumbnail specimen with green quartz crystals (to 3 cm in length) in association with a completely developed rhombohedral calcite crystal, a second generation of white calcite crystals is sitting on the quartz. A crust of
quartz microcrystals covers the calcite. Inclusions of microscopically small chlorite balls are the reason for the green color of the quartz.
Price: 150 EUR |
| NC-24: Green Quartz with fluorite and calcite
Naica, Chihuahua
Specimen size: W: 4.0, D: 3.5, H: 3.0 cm
Description: A wonderful combination with a milky-green quartz crystal (3 cm long) associated with water-clear fluorite cubes (largest 14 mm along the edge) and two generation of calcite crystals. A crust of quartz microcrystals covers the calcite. Inclusions of microscopically small chlorite balls are the reason for the green color of the quartz. Finally tiny crystals of pyrite are dispersed over the specimen.
Price: 250 EUR |
| NC-27: Fluorite & galena
Naica, Chihuahua
Specimen size: W: 8.5, D: 4.0, H: 6.0 cm
Description: On a matrix of granular fluorite/calcite/pyrite/chalcopyrite/galena/sphalerite is perched a crystal
cluster of green fluorite and galena crystals. Fluorite exhibits cubic and dodecahedral faces and crystal inclusions of chalcopyrite can be observed.
Price: 200 EUR |
