Rosell Minerales

On a sandstone matrix some yellow crusts of coconinoite formed by small tabular to micaceous crystals. This sample has been analyzed by SEM-EDS and we will send the results to the buyer.

Size: 8.2 x 7.4 x 4.2 cm.

Presents radioactive activity.

Good sized prismatic crystal of corundum, ruby variety. Formed by an elongated prism, staggered and truncated by the shapes of the pinacoid. With small muscovite.

Size: 3 x 1.7 x 1.6 cm.

Fluorescent under long wave UV

Corundum crystal of the ruby variety formed by an elongated prism and truncated by the forms of the pinacoid. Good color and size. From this classical Indian locality मैसूर, कर्नाटक, भारत.

Size: 3.7 x 1.2 x 1 cm.

Fluorescent under long wave UV

The specimens of this species have been known since ancient times as pseudomorphic kyanite after andalusite. Both species are polymorphic, so substitution is not a rare case. The label says "Santiago de Compostela", but from what we have investigated, it is the area of the Conceilhos de Touro and O Pino, to the E. of Santiago, where for decades this material was worked as kyanite. A piece with history ...

Size: 3.5 x 2 x 1.9 cm.
Found in ca. 1980.

Col. J. Astor (Barcelona).

Good-sized azurite crystal from this classic Moroccan mine. It shows very defined and bright faces and edges, with an intense blue color. It presents a small nick in the upper part but almost invisible. Good specimen indeed.

Size: 4 x 1.6 x 0.8 cm.

Classic locality

A very aesthetic miniature, but with an exceptional color variation. Between red, blue, green and yellow. A delicatessen from Brazil, referenced in Joan Astor's published work in issuu, that we recommend you visit and browse.

Size: 0.9 x 0.7 x 0.5 cm.
Found in ca. 1976.

Col. J. Astor (Barcelona). Adq. Lapidis.

Prismatic elbaite crystal, of an intense color, with the defined pinacoidal face truncating the prism. The label indicates that it comes from South Africa, but we are not aware that specimens like this have been found in this part of the world. A miniature gemmy piece.

Size: 1.2 x 0.6 x 0.6 cm.
Found in ca. 1973.

Col. J. Astor (Barcelona).

A very interesting specimen of topaz, in which we can see striated faces on the prism, truncated by pinacoids, very unusual. Transparence, brilliance and with the handwritten label from the Astor collection indicating "negative" faces. This piece was adquired to the well-know Catalan dealer Jordi Figueras, one of the suppliers of the Folch collection.

Size: 4.5 x 3.4 x 2.5 cm.
Found in ca. 1978.

Col. J. Astor (Barcelona). Adq. J. Figueras.

Group of beryl var. heliodor crystals, very brilliant, with an excellent transparence and a very uniform yellow color, real color. Many facets visible. A gem from this very famous and historic location.

 

Size: 2 x 1.5 x 1.5 cm.
Found in ca. 1990.

Col. J. Astor (Barcelona).
Classic locality

A rubellite gemmy specimen, of intense color, with defined faces, transparent to translucent. A variety of red tourmaline, rich in Li and with minor Fe and Mg. It belongs from this classic Mozambican locality, an outcrop of granitic pegmatite where many exotic minerals have been identified in fluid microscopic inclusions.

Size: 2.2 x 1.2 x 1.2 cm.
Found in ca. 1976.

Col. J. Astor (Barcelona). Adq. Montal (Vilafranca del Penedès).

Rich group of azurite crystals, with well-defined crystallographic forms, some of them doubly terminated. Intense and characteristic blue color and very brilliant. They are disposed on a matrix accompanied by well defined cerussite crystals, between translucent to transparent, with duftite. From this classic African mines.

Size: 6.5 x 6 x 4 cm.
Main crystal: 1.6 cm.

Classic locality

Specimen of beryl aquamarine variety, with good thickness and size. Very transparent, delicate bluish color, with developed prism faces and with terminal faces of the dipyramid truncated by the pinacoid. A gemmy piece.

Size: 3.5 x 3 x 2.7 cm.

Nigerian topaz specimens are not easy to see. This specimen shows a sharp crystal, transparent, with a delicate bluish tone. With well-defined prismatic faces and dipyramidal and prism terminal faces, curious for their development, which look like a twin. A true gem of this mining area in which there are many dispersed deposits.

Size: 3 x 1.8 x 1.2 cm.
Found in ca. 1980.

Group of elbaite crystals, in parallel growth, with striated prismatic faces, deep green color and good luster. From the former Manchion collection, with the characteristic label.

Size: 5.4 x 2.6 x 2.4 cm.
Found in 1989.

Col. Manchion (Barcelona) #483.

Very aesthetic aggregate of strontianite showing ciclic twinned crystals. Very brilliant, translucent and with a defined faces and edges. Accompanied by dolomite. This deposit, worked by opencut mines, in the past was also worked for talc. These specimens are a classic of the Austrian and European mineralogy.

Size: 5.7 x 3.8 x 3.6 cm.

Classic locality

Very aesthetic aggregate of strontianite showing ciclic twinned crystals. Translucent and with a defined faces and edges. Accompanied by dolomite. This deposit, worked by opencut mines, in the past was also worked for talc. These specimens are a classic of the Austrian and European mineralogy.

Size: 4.2 x 4 x 3.7 cm.

Classic locality

Very aesthetic aggregate of strontianite showing ciclic twinned crystals. Very brilliant, translucent and with a defined faces and edges. Accompanied by dolomite. This deposit, worked by opencut mines, in the past was also worked for talc. These specimens are a classic of the Austrian and European mineralogy.

Size: 4.5 × 4 × 3.8 cm

Classic locality

Kunzite crystal, with striated faces, with good color and transparence. A gemmy specimen.

Size: 4.5 x 2.8 x 2.7 cm.
Found in ca. 1997.

Excellent specimen of a quartz crystal with inclusions. In this specimen we can see green and reddish inclusions, most likely due to growths of chlorite and iron oxides in the growing crystal. A very interesting and aesthetic piece. From the Joan Astor collection.

Size: 5.8 x 5.5 x 4.5 cm.
Found in ca. 1975.

Col. Joan Astor.

Excellent specimen of a quartz crystal with geometric inclusions. In this specimen we can see green and reddish zonations, most likely due to growths of chlorite and iron oxides on the facets of the growing crystal. A very interesting and aesthetic piece. From the Joan Astor collection.

Size: 6.5 x 4 x 3 cm.
Found in ca. 1975.

Col. Joan Astor.

Group of fluorite crystals from this classic English mine, presents the shapes of the cube, interpenetrated and some twinned. Good transparence and very characteristic green color. This sample is photographed in some books that Joan Astor published in issuu [online pág. 34]. It was acquired in 1980 from Bailey Minerals (Ángel Jesús Talabán García, Segovia 1942-Madrid 2007). A very aesthetic piece.

Size: 6.8 x 3.5 x 3.5 cm.
Main crystal: 9 mm. edge/arista
Found in 1970-80's.

Col. Joan Astor.
Fluorescent under long wave UV

Group of prismatic fluorapatite crystals, with faces of the prism and the hexagonal dipyramids. The transparence and brilliance areexcellent and the yellow color is very intense. This specimen was photographed in some books that Joan Astor published in issuu [online page 86]. It is accompanied in the matrix with hyaline opal aggregates. It was acquired in 1980 from Bailey Minerals (Ángel Jesús Talabán García, Segovia 1942-Madrid 2007). A very aesthetic and good size piece.

Size: 8 x 5 x 4 cm.
Main crystal: 2 cm.
Found in 1970-80's.

Col. Joan Astor.

Showy specimen in the form of divergent stalactitic aggregates, with a patina of manganese oxides on the back side. Aerial and good sized. A very curious piece of this mine from Murcia.

Size: 8 x 7 x 6.5 cm.

Col. J.A. Robles (La Unión, Murcia)

Lorenzenite is a rare sodium titanium silicate found in pegmatites and nepheline syenites. A lustrous, sharp, chocolate-brown crystals in matrix on this excellent specimen from the Joan Astor Collection.

Size: 4.5 x 4 x 3 cm.
Main crystal: 1.8 cm.
Found in 1994.

Col. Joan Astor.

Various aggregates of mimetite crystals, rounded, globular, orange color. From this classic English locality known for this mimetite variety. With handwritten label of Kucera (Barcelona). The finest mimetite specimens were collected in the 19th century but, although increasingly hard to find, some fine material has been obtained since, particularly in the 1970's. However, the mine is notoriously unstable and there have been a number of accidents involving collectors. No one has been critically injured but the incidents have highlighted the dangers of the old workings in the Caldbeck Fells (mindat).

Size: 6.5 x 3.2 x 3 cm.
Main crystal: 3 mm.
Found in 1970's.

Col. Joan Astor.
Classic locality