In this specimen we can enjoy several groups of wire silver, with showy wire to skeletal growths and metallic luster. Accompanied by black acanthite crystal aggregates. From a classic locality for the Catalan and Spanish mineralogy. A good chance to represent this locality in your collection. Nowadays it is very difficult find specimens, only from old collections...

Size: 4.5 x 3.5 x 2.0 cm.
Found in 1998.

Col. J.M. Manchion (Barcelona)
Classic locality

An aesthetic specimen consisting of bladed, cream colored baryte crystals in parallel growth forming semi-rosettes book shaped, with a tiny bit of associated purple fluorite. With two minor From the collection of the long time, Josep Maria Manchion. 

Size: 8.6 x 6.6 x 4.5 cm.
Found in 1984

Col. J.M. Manchion (Barcelona) - No.100 (J. Viñals, 1984)

A rich group of baryte crystals, with staggered stalactite growths, intense white, with defined faces and edges and forming a very displayable and aesthetic "crest". A Spanish classic, different from the usual.

Size: 12 x 5.5 x 4.5 cm.

Col. J.M. Manchion (Barcelona) - No. 460 (Sants, 1989)

It is a very old specimen formed by prismatic to tabular crystals of celestine, with a radial disposition and filling a cavity in calcite. The matrix is a fossil coral. Fluorescent under LW-UV light. Good size. A classic of the Catalan mineralogy of old times...

Size: 12.0 x 10.0 x 6.5 cm.
Main crystal: 30 x 2 mm.
Found in 1983.

Col. J.M. Manchion (Barcelona) - No. 55
Fluorescent under long wave UV

This kind of specimens are which make the love for minerals is being reinforced. In this piece, three very interesting magnesium species, two hydroxilcarbonates and one hydroxide coexist. On the one hand we observe some aesthetic and brilliant aggregates of foliaceous crystals of dypingite, forming rosettes, of intense white color, although they are colorless. They are accompanied by sheaves of flattened crystals of hydromagnesite, between translucent to transparent, colorless (they are similar to aragonite). All of them are disposed on a rock matrix covered with a layer with botrioidal forms, from blue to gray, of brucite. A Catalan piece that is hard to find today, with unusual species and quality.

Size: 8.5 x 7.0 x 6.0 cm.
Found in 1970's.

Ex. L. Daunis (Barcelona).
Analyzed specimen with report

These are the most fine quality romanèchite specimens ever found in Spain. These botryoidal aggregates show the velvet surface formed by several small romanechite/pyrolusite crystals (see SEM photo). These specimens has not been treated, only fresh water. Romanèchite shows in fresh fracture the classic grey color. You can observe small but brilliant crystals of pyrolusite on the stalactitic surface. Analysis will be send to the buyer.

Size: 6.0 x 6.0 x 2.6 cm.
Found in 2017.

Analyzed specimen with report

These are the most fine quality romanèchite specimens ever found in Spain. These botryoidal aggregates show the velvet surface formed by several small todorokite/romanechite/pyrolusite crystals (see SEM photo). These specimens has not been treated, only fresh water. Romanèchite shows in fresh fracture the classic grey color. You can observe small but brilliant crystals of pyrolusite on the stalactitic surface. Analysis will be send to the buyer. Good size.

Size: 11.0 x 7.8 x 5.5 cm.
Found in 2017.

Analyzed specimen with report

This old specimen, of which supplier didn't had no more info about its original owner, was accompanied by a label where we can read: "Goethite pseud. Magnesite". Consulting the works "Minerales de España" by Salvador Calderón (1910) and the modern version of Miguel Calvo (2009), they mention the presence of pseudomorphic substitutions of goethite (limonite) after siderite in this Aragonese locality: Ojos Negros mines. They preserve the rhombohedral form or, less commonly, as "(...) lenticular pseudocrystals or in the form of short prisms with a hexagonal section and rounded faces that can exceed one centimeter in length (...)" (Calvo, 2009).
Therefore we can deduce that what we are showing is one of these curious pseudomorphs of goethite after siderite or magnesite. A good sized specimen, full of crystallographic history, chemistry and a classic Spanish locality.

Size: 11.5 x 6.0 x 4.8 cm.
Main crystal: 22 x 17 mm.

Classic locality

Group of sharp andradite-grossular crystals, with an exceptional brilliance and a brown color, near to black. They show clear faces of the dodecahedron and the trapezohedron. Disposed on the matrix, contrasting with the white albite and small octahedral crystals of magnetite. A sample of the former Daunis collection; from a Spanish locality not well represented in collections.

Size: 9.0 x 6.8 x 4.5 cm.
Main crystal: 6 x 5 mm.
Found in ca. 1960's

Ex-col Daunis (Barcelona)
Analyzed specimen with report

These aragonite pineapples are very rare. This specimen shows a large group of pseudohexagonal crystals, with a tone between gray, violet to brownish, translucent. Dedicated to the aragonite collectors. It comes from the Daunis collection and was collected by him personally in this classic locality.

Size: 6.4 x 6.2 x 6.4 cm.
Main crystal: 22 x 14 mm.

Ex-col Daunis (Barcelona)
Fluorescent under long wave UV

This Spanish aragonite specimen shows several twinned and interpenetrated crystals, one of them with a big size. They have a really good brilliance and tones those varies from whitish to violet, translucent. Twinned cyclically on {110} and showing a hexagonal prismatic habit. Dedicated to the aragonite collectors. It comes from the Daunis collection and was collected by him personally in this classic locality.

Size: 5.9 x 5.5 x 4.5 cm.
Main crystal: 5.9 x 3.0 cm.
Found in ca 1960-70's

Ex-col Daunis (Barcelona)
Fluorescent under long wave UV

This Spanish aragonite specimen shows several twinned and interpenetrated crystals, one of them with a big size. They have a really good brilliance and tones those varies from whitish to violet, translucent. Twinned cyclically on {110} and showing a hexagonal prismatic habit. Dedicated to the aragonite collectors. It comes from the Daunis collection and was collected by him personally in this classic locality.

Size: 4.8 x 4.2 x 3.8 cm.
Found in ca 1960-70's

Ex-col Daunis (Barcelona)
Fluorescent under long wave UV

Very rich andradite (var. melanite) specimen, with an intense color, showing interpentrated crystals and isolated ones with a good size. From a classic Spanish locality. 

Size: 7.0 x 6.0 x 5.8 cm.
Main crystal: 16 x 15 mm.

Group of calcite crystals showing well defined edges and faces with rhombohedron and prism forms. Between translucent to transparent and disposed in a matrix of greenish-toned siderite. This specimen comes from col. Daunis. It is labeled as Somorrostro, but we think it can be associated with the mining zone associated to the Bilbao anticline, Gallarta-La Arboleda-Somorrostro. A Spanish classic.

Size: 6.5 x 5.5 x 4.8 cm.
Main crystal: 24 x 22 mm.
Found in 1980's.

Excol. Lluís Daunis & Maria Ruscalleda (Barcelona). Ex. E. Kucera.

A group of tabular baryte crystals of this locality known for mercury minerals. This specimen, from the Daunis collection, shows us interpenetrating crystals, of good size and translucent. With a small damages, it is an old piece, very interesting for historical baryte and Spanish collectors.

Size: 7.8 x 7.0 x 4.4 cm.
Main crystal: 30 x 27 mm.

Excol. Lluís Daunis & Maria Ruscalleda.

A very rich group of cubic fluorite crystals, with an intense violet to purple color depending on incident light. On a matrix covered by quartz and baryte crystals. Good size and with L. Daunis (Barcelona) handwritten label collection.

Size: 8.4 x 8.0 x 7.5 cm.
Main crystal: 25 x 25 mm.

Excol. Lluís Daunis & Maria Ruscalleda.
Classic locality

Nice and very interesting aggregates of dundasite needles, a unusual lead and aluminium hydroxycarbonate, from this classic Valencian locality. Dundasite is filling cavities in the goethite matrix. Also accompanied by globular sauconite with an intense yellow color. All of them analyzed by SEM-EDS by Rosell Minerals.

Size: 5.3 × 3.2 × 3.0 cm
Found in 2015.

From a find in the area of La Celia mines. This crystal is very rich in faces, doubly terminated, gem quality, very brilliant and with an excellent transparence. It is accompanied by numerous other smaller crystals. This locality is located in La Celia volcano where we find remains of a volcanic neck (chimney) and streams from Pliocenic age (1.8-5 million years). These mines have a special geological interest, as they contains an exceptional locality for fluorapatite in the volcanic rock "jumillite". Jumillite is a volcanic rock of the lamproite group, a variety of phonolitic leucitite, consisting essentially of diopside and leucite and, to a lesser content, by olivine, alkali feldspar and phlogopite.

Size: 5.5 × 3.5 × 3 cm
Main crystal: 12 mm.
Found in 2015.

Fluorescent under long wave UV

Rich group of tabular crystals of baryte with transparency, very defined, with a book shape. It is accompanied by a L. Daunis handwritten label that refers to the Esperanza mine.
Tercera Esperanza Mine (Esperanza Mine), Cabezo de San Ginés, San Ginés de la Jara, Sierra Minera de Cartagena-La Unión, Cartagena, Murcia, Spain

Size: 7.3 x 5.0 x 4.2 cm.

This is one of the old jasper specimens collected by Mr. L. Daunis on the Montjuïc mountain in Barcelona. A place well known by Catalan mineralogists and geologists for the characteristic variety of mineral species that have been collected during centuries. It is a jasper piece with a slightly polished part that allows to enjoy the nobility of this semi-precious stone, the rest presents the original tone. A classic Barcelona sample and label that should not miss in a quality collection.

Size: 7.5 x 5.0 x 5.0 cm.
Found in 1960's.

Excol. Lluís Daunis & Maria Ruscalleda.

A huge size orthoclase crystal, showing defined prism and pinacoidal faces. It present a small repared edge made many years ago by the owner Sr. L. Daunis, a very perfect work. Crystal is embeded in this porphyry granite-adamellite, part of the potent dykes with large phenocrysts of potassium feldspar (orthoclase) of great perfection. A classic Spanish locality for the species.

Size: 10.5 x 9.2 x 7.5 cm.
Main crystal: 4.7 x 2.8 cm.

Excol. Lluís Daunis & Maria Ruscalleda.

A huge size and very brilliant druse of prismatic epidote crystals forming fan-shaped forms, with a deep green color. From this classic Catalan locality where nowadays it is forbiden collect specimens.

Size: 11.5 x 11 x 5.5 cm.
Main crystal: 17 x 5 mm.

Group of fluorite crystals with cubic habit, with good transparence that allows to see a marked color zoning. The main one, shows a cavity in which other fluorite crystals have grown. Very curious. It has a fluorite matrix with interpenetrated cubic pyrite crystals. From a classic Spanish locality.

Size: 5.0 x 4.2 x 2.9 cm.
Main crystal: 8 x 7 mm.
Found in 1990's.

Excol. Lluís Daunis & Maria Ruscalleda.

Aesthetic and good sized minyulite specimen that shows a rich group of prismatic acicular crystals. Minyulite is a rare aluminum and potassium fluorophosphate, which in this quarry has had a remarkable deposit. Few specimens were collected between the years 1999 and 2000. To increase quality, it is accompanied in the matrix by white crandallite crystals pseudom. after fluellite, transparent and defined crystals of fluellite and stalactitic globular aggregates of metavariscite with a greenish tone. These specimens are impossible to obtain today.

Size: 7.5 x 4.5 x 4.0 cm.
Main crystal: 10 mm aggr.
Found in 1999-2000.

This is one of the last fluellite specimens obtained from the fissure appeared in March 2000, where beautiful specimens of this rare phosphate were collected. This specimen was in the discoverer's collection for years. IVery well defined crystals, showing dipyramidal forms truncated by pinacoid, colorless to slightly violet, on a brilliant iridiscent matrix. A very distinctive specimen of the usual for this Navarrese mine, where it is impossible to get specimens. An opportunity to get a historical and very displayable specimen.

Size: 6.7 x 5.5 x 2.3 cm.
Main crystal: 2 x 1 mm.
Found in 03-2000.