Mineral Specimens - page 16
Francesc's Display Case

TH60L8

Thick tabular and very sharp Wulfenite crystals, with good luster and color showing marked zoning in the terminal faces. On a Calcite matrix with small aggregates of Vanadinite (var. Endlichite). An elegant miniature.

TD63L8

A pleasant group of Adamite crystals with good size and well defined faces and edges. Some of them doubly terminated. Luminous specimen, excellent color and luster. On the Limonite matrix typical of Mapimí specimens.

NG7L8

Very aerial Hematite crystals disposed on a Calcite matrix (acid-treated). One can clearly see the laminar intersected Hematite growth that gives a rosette aspect to the group, partially covered by a second phase of small Hematite crystals. A curiosity from a not well-known locality.

NF57L8

Very aerial Hematite crystals disposed on a Calcite matrix (acid-treated), which perfectly shows a rosette growth, partially covered by a second phase of intergrowth small laminar Hematite crystals. A curiosity from a not well-known locality.

NX16L8

From the mining works close to the Aizpea Mines we offer this specimen formed by groups of complex Sphalerite crystals with curved faces and edges. More than vivid red to orange color. With some small tabular Barite crystals. Really unusual.

NG58L8

Group of crystals of Chalcopyrite of tetrahedral habit, one of them clearly dominant, largely replaced by crystalline Malachite, contrasting with the matrix of Dolomite rhombohedra.

NK57L8

Nice oriented group of Pyromorphite crystals, showing an intense green color, with yellowish tones, forming small but well formed hexagonal prisms with well defined terminal faces. These Pyromorphites, which are now very difficult to obtain, were collected in the early 20th century.

NB58L8

Excellent miniature formed by a group of prismatic crystals, some of them doubly terminated, with good color and multiple slight color zoning. These Pyromorphites, which are now very difficult to obtain, were collected in the early 20th century.

NR9L8

A miniature formed by a group of prismatic to acicular fan-shaped crystals, with an excellent color. A classic specimen from one of the most famous Spanish mineral localities. These Pyromorphites, which are now very difficult to obtain, were collected in the early 20th century.

NQ9L8

A group of well defined Pyromorphite crystals, with an apple green color showing prism forms and very bright and defined terminal faces. Both sides of the sample are totally covered by crystals. These Pyromorphites, which are now very difficult to obtain, were collected in the early 20th century.

NA59L8

Group of Pyromorphite crystals with a beige color that is uncommon for the locality. Although they do not have the usual green color they show sharp color zoning. Some of them are doubly terminated, with good brilliance. An exquisite miniature. These Pyromorphites, which are now very difficult to obtain, were collected in the early 20th century.

NE10L8

A classic Spanish specimen. A miniature formed by a group of prismatic to acicular fan-shaped crystals, with an excellent color. Some of the thicker crystals show color zoning in the terminal faces. A classic specimen from one of the most famous Spanish mineral localities. These Pyromorphites, which are now very difficult to obtain, were collected in the early 20th century.

NB57L8

Nice specimen of cubic Fluorite crystals, very transparent and brilliant, with geometric color zoning. The cube faces shows a later growth phase with curious echelons on the edges.

NQ61L8

Group of good size beveled cubic crystals, very transparent and bright. With polysynthetic growths that form tiled structures on the cube faces. Excellent violet color with marked geometric zoning. On the cube faces a generation of small but transparent scalenohedral Calcite crystals has grown. With Barite and on matrix. Fluorite from this locality is also not at all common, which makes this one even more interesting.

ND61L8

Group of beveled cubic crystals, one of them dominant, very transparent and bright. With polysynthetic growths that form tiled structures on the cube faces. Good violet color with marked geometric zoning. On the cube faces a generation of small but transparent scalenohedral Calcite crystals has grown. On matrix with white laminar “book” Barite crystals. Fluorite from this locality is also not at all common, which makes this one even more interesting.

NY13L8

Group of good sized beveled cubic crystals, very transparent and bright. With polysynthetic growths that form tiled structures on the cube faces. Excellent violet color with marked geometric zoning. Accompanied by white laminar “book” Barite crystals covered by Calcite. On matrix. Fluorite from this locality is also not at all common, which makes this one even more interesting.

NF58L8

Stalactitic iridescent growth of Goethite almost entirely covered by bipyramidal Descloizite crystals with well defined faces and edges, good luster and dark brown color.

NK58L8

Bipyramidal Descloizite crystals, many of them doubly terminated, with excellent luster and very sharp faces and edges, which have grown on Goethite with a later formed scalenohedral Calcite crystal.

NE57L8

A capricious columnar Goethite growth totally covered by good-sized bipyramidal Descloizite crystals that are not usual in this mine.

NZ9L8

Very aerial columnar and arborescent Descloizite crystal growth. With good luster and well defined bipyramidal faces and edges, some of them doubly terminated. On iridesscent Goethite with tones that vary between gold to reddish, contrasting with the matrix. An esthetic specimen.

MG10L8

Esthetic miniature formed by Rutile crystals, one of them very aerial, that display a perfect example of the classic cyclic twin. Very bright, striated faces and deep red color transparency and reflections visible under an intense light. On a Limonite matrix. Although the first locality given in the market was D.R. of Congo, we can give the correct locality as Zambia, close to the D.R. of Congo border.

MB60L8

Group of Rutile crystals, one of them with a good size. On a Limonite matrix that resembles a conglomerate. Rutile crystals display a perfect example of the classic cyclic twin. Very bright, striated faces and deep red color transparency and reflections visible under an intense light. Although the first locality given in the market was D.R. of Congo, we can give the correct locality as Zambia, close to the D.R. of Congo border.

MC62L8

Group of Rutile crystals, one of them with a good size. On a Limonite matrix that resembles a conglomerate. Rutile crystals display a perfect example of the classic cyclic twin. Very bright, striated faces and deep red color transparency and reflections visible under an intense light. Although the first locality given in the market was D.R. of Congo, we can give the correct locality as Zambia, close to the D.R. of Congo border.

MA63L8

Group of Rutile crystals that show perfect cyclic twins on a matrix of Limonite and Quartz. Very bright, striated faces and deep red color transparency and reflections visible under an intense light. Although the first locality given in the market was D.R. of Congo, we can give the correct locality as Zambia, close to the D.R. of Congo border.

MA61L8

Group of Rutile crystals that show perfect cyclic twins on a matrix formed by Rutile, Limonite and a bit of Quartz. Very bright, striated faces and deep red color transparency and reflections visible under an intense light. Although the first locality given in the market was D.R. of Congo, we can give the correct locality as Zambia, close to the D.R. of Congo border.

NF56L6

Excellent idiomorphic Barite crystal, with excellent transparency and brilliance. Its upper and side faces have very well marked triangular growth figures that give the edges a sawtooth appearance. Also we can see corrosion and contact geometric structures on some faces. We call your attention on the interesting Chalcopyrite crystal inclusions, where the original yellow greenish color is preserved, while superficial crystals on Barite faces are covered by a thin oxidation layer. The specimen is from mining works of Aizpea, close to the La Troya Mine.

NQ7L6

Excellent idiomorphic Barite crystal, with excellent transparency and brilliance. Its upper and side faces have very well marked triangular growth figures that give the edges a sawtooth appearance. Also we can see corrosion and contact geometric structures on some faces. We call your attention on the interesting Chalcopyrite crystal inclusions, where the original yellow greenish color is preserved, while superficial crystals on Barite faces are covered by a thin oxidation layer. The specimen is from mining works of Aizpea, close to the La Troya Mine.

NV8L6

Very esthetic Quartz crystal, with very sharp faces and edges. Intense and uniform smoky color and good transparency. Prism faces present fine horizontal striations. On a small Albite matrix. A small gem. Actually it is quite difficult to obtain high quality specimens from Massabé Quarry.

NE9L6

Multiple crystal growth of Amethyst crystals showing short prisms. Very sharp faces and edges, with great luster. Really good and uniform color, more intense at the top of the pyramids, grayish color in prism faces. This specimen is from the AVE (Spanish High Speed Train) quarry works where actually it is quite impossible to obtain quality specimens.

NA10L6

Parallel growth of Amethyst crystals, with a second generation of small Quartz crystals, some of them doubly terminated, which grew perpendicular to the specimen main axis. Color is more intense in terminations. A very curious specimen for the locality. This specimen is from the AVE (Spanish High Speed Train) quarry works where actually it is quite impossible to obtain quality specimens.

N12FL6

Group of complex Sphalerite crystals with well defined faces and edges, some of them with curvatures. Excellent luster and deep honey color. On a Dolomite matrix, with olive green Siderite. This mine closed a long time ago, and it is now flooded and collapsed, so it is quite impossible to obtain specimens there.

NM7L6

A Spanish novelty. Radial growths of deep green acicular Malachite crystals. Good brilliance, elegance and very original. On a Quartz matrix with altered Chalcopyrite.

NT57L6

A Spanish novelty. Very nice group of fibrous Malachite crystals in a vug coated by small corroded Quartz crystals. On a Quartz matrix with altered Chalcopyrite.

EV16H2

Doubly terminated floater. The color is deeper at the terminations, whose luster is also more intense than in the other faces. The crystal grew on other small crystals of Quartz (Amethyst)

RA63J2

Tabular crystals of hexagonal but partially rounded shape. On a matrix of Albite crystals and with small crystals of Siderite.

TJ62J4

Parallel growth of short prismatic crystals of excellent luster and transparency.

MH26K5

Group of prismatic crystals, a lot of them doubly terminated, of excellent color and with Rockbridgeite crystallizations.

TD6J9

Small spheres and microcrystals of deep red variscite, which is a rarity, intergrown with concretionary formations of violet blue Strengite on matrix.