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RM3722   Cubanite and calcite
CuFe₂S₃
  -  2. Sulfides and sulfosalts

This specimen shows a group of twinned cubanite crystals. They exhibit excellent luster, iridescence, twin faces and striations, and is complete. The rarity of this material makes it highly desirable for collectors. It comes from the classic Canadian locality for this species.

Size: 6.4 x 4.5 x 4.2 cm.
Main crystal: 10 mm.
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RM3721   Cubanite and calcite
CuFe₂S₃
  -  2. Sulfides and sulfosalts

This specimen shows a group of twinned cubanite crystals. They exhibit excellent luster, with visible faces and some natural fractures, but the rarity of this material makes it highly desirable for collectors. It belongs from the classic Canadian locality for the species.

Size: 6.4 x 4.5 x 4.2 cm.
Main crystal: 10 mm.
200 €
RM3727   Fluorapatite
Ca₅(PO₄)₃F
  -  8. Phosphates, arsenates and vanadates

An excellent specimen of fluorapatite, formed by the parallel growth of two crystals, with very defined hexagonal shapes, an intense green color, and exceptional luster. From this Canadian locality, a classic location for the species.

Size: 5.3 x 3.2 x 2.4 cm.
Found in ±1973.
Col. Joan Astor (Barcelona).
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RM3691   Serandite
NaMn²⁺₂Si₃O₈(OH)
  -  9. Silicates

This good-sized specimen displays various clusters of crystals of this rare silicate, with parallel growth and a characteristic salmon-pink color. It comes from the Nicolau collection (Barcelona) and was acquired in an old mineral shop in Girona. Serandite was named in 1931 by Antoine François Alfred Lacroix after J.M. Serand, lighthouse keeper of the Island of Roume, Los Islands, Guinea, who assisted in collecting the mineral and who, coincidentally, had a rosy pink complexion (sic).

Size: 7 x 4.9 x 3.6 cm.
Found in 1980's.
Col. Nicolau (Barcelona).
Classic locality
260 €
RM3651   Vesuvianite
Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
  -  9. Silicates

A very rich specimen formed by numerous prismatic vesuvianite crystals, lustrous, transparent, and with a soft greenish hue. A very aesthetic specimen and of good size. This famous open-pit asbestos-chrysotile mine, approximately 2 km in diameter and up to 350 m deep, began exploitation in 1879. Global demand for asbestos dropped dramatically in the 1980s when its carcinogenic properties became known, and its use as a construction material was banned worldwide. In 1996, in an attempt to exploit a high-quality zone at the bottom of the mine, another attempt was made to switch to underground methods, but government subsidies dried up in 2001, and the mine has remained inactive ever since.

Size: 6.6 x 4.5 x 3.6 cm.
Col. F. Coune (Belgique) #62.
Classic locality
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RM3385   Dresserite, Weloganite

Dresserite is a rare barium aluminum hydroxycarbonate and is only found in the type locality: the Francon Quarry in Montreal, Canada. The quarry, now disappeared, was literally in the middle of the city, but closed permanently in 1981. This large specimen that we offer presents several small white spheres, formed by radial crystals of dresserite, associated with small honeyed crystals of weloganite, in a matrix with calcite. We can also observe hydrodresserite crystals, a more hydrated species than dresserite. Hydrodresserite forms thicker crystals, resulting in rougher spheres than dresserite.

Size: 10 x 5.6 x 4.6 cm.
Type Locality
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RM2956   Ilmenite and pyrite

As is often the case with old labels, the localities are sometimes discrepant with the data we currently have available on the Internet. This historic specimen of ilmenite, from the Joan Astor collection was acquired in 1976 from Joan Montal (former mineral seller from Vilafranca del Penedés), provides us with a label indicating the locality of Saint-Urbain. At the time of documenting this piece, we have found the photo of an ilmenite from Havre-Saint-Pierre (an area further northeast of Saint-Urbain) with a very similar shape and accompanying species and, most notable, it is indicated that it was collected in situ during a visit in 1979 (view), when our specimen dates from 1976. Furthermore, both specimens are formed by aggregates of ilmenite crystals with a few pyrite crystals embeded.

Size: 8 x 4.2 x 3.6 cm.
Found in ±1976.
Col. Joan Astor (Barcelona).
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RM2861   Grossular, var. hessonite

This miniature is a gem, formed by several grossular crystals, with brilliance, very well defined, transparent and with an intense color. Since the mine closed it is difficult to see specimens of this type. From a former Catalan collection.

Size: 3.2 x 3 x 1.8 cm.
Found in ±1989.
Col. Trigo (Mataró, Catalunya)
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RM2562   Uvarovite and diopside

The uvarovite specimens from the Jeffrey are not at all common. This specimen from the Joan Astor collection (Barcelona, Catalunya) dates from the 70s, when some specimens were collected. Small but brilliant and transparent crystals of this garnet, extreme with chromium of the grosularia-uvarovite series.

Size: 5.7 x 3.7 x 3.1 cm.
Found in ±1975.
Col. J. Astor, Barcelona.
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RM2163   Spinel

A classic specimen of spinel, bright, defined and well arranged in the matrix. It is not easy to find them in matrix. This well-known extinct small Quebec mica mine is famous for excellent spinel and forsterite crystals.

Size: 4.6 x 3.7 x 2.6 cm.
Main crystal: 1.2 cm.
Col. Manchion (Barcelona). Ex. E. Kucera.
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RM2098   Fluorapatite
Ca₅(PO₄)₃F
  -  8. Phosphates, arsenates and vanadates

Curious group of fluorapatite crystals, of intense green color, interpertered and with parallel growths. One side is crystalized, the other not... A curiosity analyzed since we doubted that it was not a diopside.

Size: 4 x 2.2 x 1.2 cm.
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RM1541   Meionite, Scapolite group and diopside

Group of scapolite (meionite) crystals, one of them of good size, that show the prism and dipyramidal faces. With pearlescent luster and a very characteristic ivory color for the specimens of this Canadian locality. They are accompanied by inclusions of diopside. The specimen has been analyzed and the results will be sent to the buyer. Slightly fluorescent under shortwave UV light. A classic specimen difficult to see in the market.

Size: 7.0 x 6.1 x 5.3 cm.
Main crystal: 5.7 x 5.0 cm.
Fluorescent under short wave UV
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RM1406   Sérandite
NaMn²⁺₂Si₃O₈(OH)
  -  9. Silicates

A very aethetic miniature specimen of sérandite, showing a good salmon color. Defined and with a nice size... From the classic MSH.

Size: 2.3 x 1.3 x 0.9 cm.
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RM1416   Sérandite with analcime and manganoneptunite
NaMn²⁺₂Si₃O₈(OH)
  -  9. Silicates

A classic specimen of Mt. St-Hilaire combines a group of good sized analcime crystals with trapezohedral faces, well defined and interpenetrating each other. With some sérandite crystals, well defined and showing an excellent bright orange color. It is accompanied by aegirine, green fibrous actinolite and crystals of manganoneptunite with a dark brown color, and probably accompanied by thorian britholite-(Ce) (not perfectly identified). An indispensable classic of mineralogy. We will send analysis to the buyer.

Size: 5.0 x 4.3 x 3.0 cm.
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