Rosell Minerales

Group of amethyst quartz crystals, very elongated, with transparence and brilliance. The amethyst color is very uniform and delicate. It has some carbonaceous inclusions. Different from the usual specimens for the locality.

Size: 8.8 x 2.7 x 2.5 cm.

A very well defined botryoidal aggregate. It has a matte luster and is on a rocky matrix. These specimens were found in 2010, in the Km 2 of the road between Chihuahua and Cuauhtémoc,and it is interesting for its quality and size. This material was analyzed by Marcus Origlieri at the University of Arizona (J. Fabre) and reanalyzed "just for fun". Nowadays impossible to find these samples.

Size: 10 x 7 x 6 cm.
Found in 2010.

Adq. J. Fabre. Col. M. Marí (Castelló).
Analyzed specimen with report

On a matrix totally covered by sharp quartz crystals, some of them with small inverse scepters, one of them more developed shows a perfect scepter shape. An elongated hyaline quartz prism with a scepter on the top with a pale amethystine tone. Really nice miniature.

Size: 5,2 x 4,0 x 3,8 cm.
Main crystal: 2,8 x 1,0 cm
Found in 2009

Very rich specimen formed by numerous prismatic crystals of wulfenite, with orange color. They are brilliant and disposed on the matrix. A specimen more than aesthetic historical, fine quality and from a classic Mexican locality.

Size: 6.0 x 3.0 x 2.9 cm.
Main crystal: 4 x 3 mm.

Group of wulfenite crystals from the well-known mina Ahumada (Chihuahua) showing intense color and luster and very marked tetragonal shape with rounded edeges. A very aesthetic specimen.

Size: 4.5 x 3.9 x 3.0 cm.
Main crystal: 8 x 7 mm.

These specimens of wulfenite with the chocolate brown to orange tone are very appreciated by collectors and very difficult to see today, unless they come from former collections with tradition. This specimen shows a large group of tabular crystals, very brilliant and translucent, few small nick that does not affect the aesthetics of the specimen. A classic piece.

Size: 6 x 5.8 x 5.2 cm.
Main crystal: 7 x 6 mm.
Found in ±2002.

Classic locality

A nice specimen of delicate purple to violet creedite is from the early 1980's find in Santa Eulalia. Complete, brilliant, the specimen features gemmy crystals to almost 1 cm. Purple creedite specimens are unusual in the market.

Size: 7 x 6.5 x 3.3 cm.
Main crystal: 1 cm.
Found in ±1980.

Very esthetic specimen formed by numerous aggregates of crystals of calcite manganoan, very bright, transparent to translucent, forming globular groups very well set on the matrix. They present a slightly pinkish tone due to the presence of Mn. Extremely fluorescent under LW-UV, with a spectacular pink to red color. They are accompanied by small octahedral cubic crystals of colorless and transparent fluorite. In a matrix of bright crystals of pyrite, sphalerite and galena. An exceptional piece.

Size: 8.7 x 7.5 x 3.5 cm.
Main crystal: 10 x 8 mm.

Col. J.M. Manchion (Barcelona) - No.420 (Kucera, 1988)
Fluorescent under long wave UV

Globular aggregates of mimetite crystals, with an intense luster and yellowish honey color. It is a floater and it back side there are some spherical vugs those are difficult to interpretate. Take a look. An aesthetic miniature from this famous Mexican mine.

Size: 3,9 x 2,5 x 2,0 cm.

Globular aggregates of mimetite crystals, with an intense luster and yellowish honey color. It is a floater and it back side there are some spherical vugs those are difficult to interpretate. Take a look. An aesthetic miniature from this famous Mexican mine.

Size: 4,3 x 3,3 x 2,3 cm.

Very rich specimen formed by numerous prismatic crystals of wulfenite, with orange color zoning. They are brilliant and disposed very aerially on the matrix. It is accompanied by calcite, which in the back part of the specimen partially covers the crystals of wulfenite, with small aggregates of yellowish arsenatian vanadinite crystals, curiously close to pyromorphite. We will send the analysis to the buyer. A specimen more than aesthetic historical, fine quality and from a classic Mexican locality.

Size: 7.0 x 4.5 x 2.5 cm.
Main crystal: 12 x 6 mm.

Ex.Col. Marcus Grossman (D)

Botryoidal aggregates of smithsonite, with a good green color, showing possible rhombohedral forms. If we look carefully we can see several crystals of this zinc carbonate forming this forms. We emphisize on the quality of this specimen.

Size: 7,8 x 5,4 x 4,5 cm.

Very rich specimen of rhodo, formed by several gemmy, rose-red elongated rhombohedrons covering the matrix on this fine, fine quality sample from the famous 1970s and 1980s finds at Santa Eulalia. Observed under magnification we can see that elongated faces are semidull and terminal rhombohedrons are brilliant and transparent. Color is really good. Not easy to find in the market specimens with this quality.

Size: 6.8 x 5.6 x 3.8 cm.
Main crystal: 5 x 1 mm

This elongated calcite crystal comes from the deposits of optical calcite of José María Patoni. These mining works are famous worldwide for the purity, transparence and crystallographic complexity of its calcite crystals. These specimens were formed by mineral rich hydrothermal fluids flowing through rhyolitic pyroclastic materials, where they found faults and fissures, a perfect place to grow.
This specimen shows faces of the prism, both scalenohedrons and rhombohedrons (positive and negative), echeloned faces and a marked apical pinacoid. Excellent transparence and brilliance. With a minor matrix. A worlwide classic for calcite and crystallography.

Size: 5,6 x 1,8 x 1,7 cm
Found in 2004

Precio reducido-Reduced price 40€
Fluorescent under long wave UV

This elongated calcite crystal comes from the deposits of optical calcite of José María Patoni. These mining works are famous worldwide for the purity, transparence and crystallographic complexity of its calcite crystals. These specimens were formed by mineral rich hydrothermal fluids flowing through rhyolitic pyroclastic materials, where they found faults and fissures, a perfect place to grow.
This specimen shows faces of the prism, both scalenohedrons and rhombohedrons (positive and negative), echeloned faces and a small apical pinacoid. Excellent transparence and brilliance. A worlwide classic for calcite and crystallography.

Size: 5,2 x 2,0 x 1,4 cm
Found in 2004

Fluorescent under long wave UV

This elongated calcite crystal comes from the deposits of optical calcite of José María Patoni. These mining works are famous worldwide for the purity, transparence and crystallographic complexity of its calcite crystals. These specimens were formed by mineral rich hydrothermal fluids flowing through rhyolitic pyroclastic materials, where they found faults and fissures, a perfect place to grow.
This specimen shows faces of the prism, both scalenohedrons and rhombohedrons (positive and negative), echeloned faces and a small apical pinacoid. Excellent transparence and brilliance. A worlwide classic for calcite and crystallography.

Size: 5,1 x 1,5 x 1,4 cm.
Found in 2004

Fluorescent under long wave UV

This elongated calcite crystal comes from the deposits of optical calcite of José María Patoni. These mining works are famous worldwide for the purity, transparence and crystallographic complexity of its calcite crystals. These specimens were formed by mineral rich hydrothermal fluids flowing through rhyolitic pyroclastic materials, where they found faults and fissures, a perfect place to grow.
This specimen shows faces of the prism, both scalenohedrons and rhombohedrons (positive and negative), echeloned faces and a small apical pinacoid. Excellent transparence and brilliance. A worlwide classic for calcite and crystallography.

Size: 4,5 x 1,8 x 1,6 cm.
Found in 2004

Precio reducido-Reduced price 30€
Fluorescent and phosphorescent under long wave UV

This elongated calcite crystal comes from the deposits of optical calcite of José María Patoni. These mining works are famous worldwide for the purity, transparence and crystallographic complexity of its calcite crystals. These specimens were formed by mineral rich hydrothermal fluids flowing through rhyolitic pyroclastic materials, where they found faults and fissures, a perfect place to grow.
This specimen shows faces of the prism, both scalenohedrons and rhombohedrons (positive and negative), echeloned faces and a small apical pinacoid. Excellent transparence and brilliance. A worlwide classic for calcite and crystallography.

Size: 4,6 x 1,8 x 1,3 cm.
Found in 2004

Precio reducido-Reduced price 35€
Fluorescent and phosphorescent under long wave UV

An excellent sample of a calcite showing a marked butterfly twin. Two twinned crystals in the same sample. Good transparence and very aerial disposed. This calcite comes from the deposits of optical calcite of José María Patoni. These mining works are famous worldwide for the purity, transparence and crystallographic complexity of its calcite crystals. Nice miniature.

Size: 4,0 x 3,3 x 1,6 cm.
Main crystal: 23 x 14 mm.
Found in 2004

Fluorescent under long wave UV

A huge size cuprian adamite specimen, formed by two druses of very brilliant small crystals with an intense brilliance and characteristic color, with stalactitic growths. On the back size of the specimen there are some isolated and more developed crystals of this arsenate. Really good for diplay.

Size: 14,2 x 7,5 x 5,5 cm.
Found in ca. 2007.

In this specimen we can observe two generations of aurichalcite. A first generation as small rosettes formed by lanceolate greenish crystals and second with thiner crystals, needle-like, some of which are included in rhombohedral calcite crystals, with a light blue color. Stand in a very aesthetic way on the matrix of goethite. A very balanced sample.

Size: 7.5 x 5.5 x 3.8 cm.

A rich druse of cuprian adamite crystals which is completely covering the cavity in limonite. With stalactitic growths showing an intense blue-green color. They are peppered by small white globular aggregates of smithsonite, along with areas of rosasite green. Accompanied by globular aggregates of conichalcite and very defined cuprian adamite crystals. An interesting specimen with good size.

Size: 8,0 x 5,5 x 5,0 cm.

Rich group of very elongated mimetite crystals, some of them doubly terminated, brilliant, translucent and with a soft yellow tone. Mimetite specimens with this shape are unusual in Ojuela mine, usually globular. They are accompanied by aggregates of tiny yellow to orange crystals of tsumcorite-arsenbrackebuschite. They are disposed in a cavity of the goethite matrix. The specimen has been analyzed and the results will be sent to the buyer. It has been published in the mineral magazine "Paragénesis" (1-2017).

Size: 7.0 x 5.5 x 5.0 cm.
Main crystal: 20 x 2 mm.

Analyzed specimen with report

Group of very sharp adamite crystals showing an intense brilliance and color between yellow to colorless. Different orders prisms are present, isome of the end faces can remind the octahedron. Thus, in the specimen we can see very elongated crystals, some other flattened and almost equidimensional. Transparence and luster are really good. Crystals are disposed very aerial on a goethite matrix. This sample belongs to a German collection.

Size: 7,5 x 6,8 x 4,1 cm.
Main crystal: 13 x 10 mm.

Old col. Nr. 2704.
Fluorescent under LW-UV and SW-UV lights

Exceptional specimen formed by several groups of prismatic crystals of adamite, which are disposed forming rosettes on a matrix of goethite. Crystals have a very uniform yellow color, with transparence, and very defined faces and edges. Pure aesthetic.

Size: 7.5 x 6.4 x 2.5 cm.
Main crystal: 6 mm.