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RM2167   Carnotite

Oljeto Mesa, Monument Valley-Navajo Country, Goulding, San Juan Co., Utah, United States

For uranium mineral collectors, this carnotite of an intense yellow color, formed by numerous globular aggregates of crystals, covering the surface of the sandstone matrix. An American classic, labeled E. Kucera (Barcelona).

 

 


Size: 5.7 x 2.7 x 1.3 cm.

Col. Manchion (Barcelona).
Presents radioactive activity.


 

RM2105   Spinel

Green Monster Mountain, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, United States

Rich specimen formed by numerous spinel crystals showing octahedral form, black colour, very brilliant and well defined faces and edges. Sample is accompanied by the label of Douglas "Doug" Toland, with notes those indicates it could be gahnite or chromite, but the semi-quantitative analysis done with SEM-EDS microscopy shows that it is spinel, not identified in the mine before. It is accompanied by probably grossular and chlorite. A good specimen for the species and for this cold locality.


Size: 4.8 x 4.7 x 4.5 cm.
Main crystal: 4 mm.
Found in 1977.

Ex. Douglas Toland.
Analyzed specimen with report


Price: 80 €Reserved

 

RM2113   Pyromorphite

Bunker Hill Mine, Bunker Hill properties, Kellogg, Shoshone Co., Idaho, United States

Bunker Hill pyromorphite specimens are among the most appreciated by collectors worldwide. This specimen shows a druse of barrel-shaped crystals with an excellent color and brightness, some of them doubly terminated and with a good size. It is increasingly difficult to find samples of this quality at a reasonable price.


Size: 6 x 5.2 x 4.5 cm.
Main crystal: 5 mm.
Found in 1998.

Classic locality
 

RM2080   Kinoite and Hydroxyapophyllite-(K)

Christmas Mine, Dripping Spring Mts., Christmas, Gila Co., Arizona, United States

Very aesthetic specimen of kinoite from this famous American mine. It is a druse formed by small crystals of this rare silicate of calcium and copper, very characteristic of this mine, which are partially covered by brilliant and transparent crystals of Hydroxyapophyllite-(K). We also observe the kinoite as darker globular aggregates. Pure aesthetics and brightness. The best kinoites came out for a short time in the 70s from this Arizona mine, and specimens show up only rarely on the market.


Size: 7.3 x 5.5 x 4.8 cm.
Found in ±1975.

Col. A. Arguijo (L'Hospitalet de Llobregat).
Classic locality


 

RM2069   Johannsenite with Axinite-(Mn) and Quartz

Iron Cap Mine, Santa Teresa Mts., Aravaipa, Graham Co., Arizona, United States

Johannsenite is a rare calcium and manganese silicate of the pyroxene group. In this specimen it appears forming aggregates of sharp prisms, with dark green color, accompanied by tabular lanceolate crystals of axinite-(Mn) of greenish tones and quartz crystals. A good-sized specimen of an unusual species.


Size: 7.2 x 5.8 x 5.5 cm.
Main crystal: 7 mm.

 

RM2047   Rosasite with calcite

Silver Hill mine group, Waterman Mts., Silver Hill, Pima Co., Arizona, United States

A very esthetic and good size specimen formed by several globular aggregates of acicular crystals of rosasite, of bluish green color, some partially covered by bright and transparent calcite crystals. It is accompanied by smithsonite and in a goethite matrix.


Size: 8.5 x 7.5 x 4 cm.
Main crystal: 3 mm aggr.
Found in ±1989

Col. Manchion (Barcelona) #445 E. Kucera (1989).


 

RM2062   Agate (var: Agatized coral)

Ballast Point, Tampa Bay, Tampa, Hillsborough Co., Florida, United States

Agatized coral with marked bands. In a very visible coral matrix. Filled inside with botryoidal and banded chalcedony. The sparkly, translucent botryoids and banding have a pleasing variety of honey-brown and creamy colors. Very aesthetic and unusual in the marked. Fluoresces in a light-blue color under a long wave fluorescent light.


Size: 11 x 4.5 x 1 cm.

Col. A. Arguijo (L'Hospitalet de Llobregat)
Price: 60 €Reserved
 

RM2048   Andradite

Quartzite Mountain, Santa Teresa Mts, San Carlos Reserva India, Graham Co., Arizona, United States

Aesthetic cluster of greenish andradite crystals, very well defined, bright and slightly iridescent. From Stanley Butte, Arizona, classic locality for these specimens. No damage to any of the main crystals.


Size: 7.8 x 5 x 4.2 cm.
Main crystal: 14 mm.
Found in ±1988

Col. Manchion (Barcelona) #403 E. Kucera (1988).


 

RM1973   Coconinoite

Jomac Mine, White Canyon, San Juan Co., Utah, United States

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: 5.0 x 3.1 x 1.2 cm.

Presents radioactive activity.


 

RM1936   Inesite

Hale Creek Mine, Mad River Rock, Trinity Co., California, United States

This specimen of good size and quality comes from a classic North American locality for the species. Numerous pink crystals of inesite coat the interior of a vug in the matrix. Crystals of inesite are very sharp and brilliant. A good piece of this ancientlocality.


Size: 12 x 9.2 x 5 cm.
Main crystal: 5 x 2 mm

Classic locality
 

RM1937   Topaz

Topaz Mountain, Thomas Range, Juab, Utah, United States

Topaz crystal aesthetically disposed on a rhyolite matrix. It shows several faces very well defined, with an excellent transparency and a uniform tone. From a classic locality.

 


Size: 7.5 x 8 x 5.5 cm.
Main crystal: 18 mm.

 

RM1925   Wavellite

Mauldin Mountain Quarries, Mauldin Mt., Montgomery Co., Arkansas, United States

Wavellite specimens from Arkansas are becoming rare from this locality. In this remarkable sample we can see globular aggregates of crystals of this phosphate, with a second generation that covers them partially and of a lighter green color. Good color and aesthetics. A real classic.


Size: 7.8 x 7 x 3.4 cm.

Classic locality
Price: 50 €Reserved

 

RM1907   Rutile

Graves Mountain, Lincoln Co., Georgia, United States

Good sized group of rutile crystals from this classic North American locality for the species. They show very defined facets, excellent brilliance, with transparencies and reddish reflections. With forms of contact with the matrix and other accompanying crystals. An opportunity to get a historical piece.


Size: 7 x 6.2 x 4.8 cm.

 

RM1869   Baryte

Sterling Mine, Leeson Pocket, Stoneham, Weld Co., Colorado, United States

A very aesthetic cluster of prismatic, lustrous and gemmy, ice-blue baryte crystals with minor calcite from the named Leeson Pocket at the famous Stoneham locality of Colorado. The form is excellent and the largest crystals are doubly terminated. This fine piece is from the major 1989 finds and purchased to E. Kucera (Barcelona). Nearly pristine, only one crystal on the periphery is broken. An excellent specimen, uncommon in the market. A really interesting article in Rocks and Minerals available here.


Size: 6 x 3 x 2 cm.
Main crystal: 53 x 12 mm.
Found in ±1989.

Col. J.M. Manchion, Barcelona. #477, 1989 Kucera.
Classic locality


 

RM1843   Tyuyamunite

Butler No. 2 Mine, Crescent Creek, Garfield Co., Utah, United States

Very esthetic aggregates of tabular tyuyamunite crystals. Very bright, intense yellow greenish color and contrasting with the matrix. A very representative specimen for the species.


Size: 3.7 x 2.7 x 1.1 cm.

Presents radioactive activity.


 

RM1837   Awaruite

Josephine Creek placers, Josephine Creek, Josephine Co., Oregon, United States

This specimen is an awaruite nugget, rounded by the fluvial action. The awaruite, formerly known as "josephinite" by this North American locality, is a natural alloy of iron and nickel, with compositions within the Ni3Fe-Ni2Fe range (Ni3Fe is more common). Many people mistakenly believe that "josephinites" are of meteoritic origin, but in fact the awaruite is extremely rare in metallic meteorites. The placer deposits of this area were discovered and exploited in the middle of the XIXth century. The awaruite of this deposit is usually accompanied by serpentine, andradite and orcelite: Ni5-xAs2 (x = 0.23).


Size: 0.9 x 0.5 x 0.5 cm.

Classic locality


 

RM1835   Callaghanite

Sierra Magnesite Mine, Gabbs, Nye Co., Nevada, United States

Callaghanite is an very rare copper magnesium carbonate, known from only a few localities worldwide. This specimen has bright royal-blue microcrystals and hails from the Type Locality in Nevada. Good size and rich sample.


Size: 5.2 x 4.8 x 3.8 cm

Type Locality - Localidad Tipo
Classic locality
 

RM1817   Opal

Opal Butte, Morrow Co., Oregon, United States

The extremely glassy, transparent to translucent opal colors range from colorless to very rich orange. A really excellent, sculptural and rich bi-colored large matrix opal example from this locality. Bright neon-green fluorescence. Very old material. Matrix opal specimens of this large size are rare from this Oregon locality.


Size: 7.0 x 4.0 x 3.8 cm.
Found in ±1990.

Col. J.M. Manchion (Barcelona). No.523, Kucera 1991.
Fluorescent under long wave UV


 

RM1809   Amazonite, Microcline variety

Pikes Peak, Teller Co., Colorado, United States

Rich group of microcline crystals, amazonite variety, showing defined faces and edges and a very aerial disposition. The color is quite good and very attractive. From an old Catalan collection.


Found in ca. 1984

Col. J.M. Manchión (Barcelona). No.81, adq. C. Curto 05/1984.


 

RM1715   Agate (var: Agatized coral)

Ballast Point, Tampa Bay, Tampa, Hillsborough Co., Florida, United States

Agatized coral with marked bands. In a very visible coral matrix. Filled inside with botryoidal and banded chalcedony. The sparkly, translucent botryoids and banding have a pleasing variety of honey-brown and creamy colors. Very aesthetic and unusual in the marked. Fluoresces in a light-blue color under a long wave fluorescent light.


Size: 8.3 x 5.4 x 3.0 cm.
Main crystal: 45 x 33 x 27 mm. ágata

Col. J.M. Manchion (Barcelona) - No.510 (Kucera, 1990)
Fluorescent under long wave UV


Price: 75 €Buy
 

RM1712   Turquoise

Royston Mine, Royston, Nye Co., Nevada, United States

Curious specimen of turquoise, authentic turquoise, of a slightly greenish blue color, forming globular and elongated nucleus, in a matrix of goethite with other phosphates as possibly strengite. It is slightly polished which allows us to see perfectly the forms that the phosphate takes inside the matrix.


Size: 6.5 x 4.0 x 3.2 cm.

Col. J.M. Manchion (Barcelona)


 

RM1711   Variscita

Little Green Monster Variscite Mine, Clay Canyon, Fairfield, Oquirrh Mts, Utah, United States

A really aesthetic green variscite specimen from the occurrence at Clay Canyon. The polished specimen hosts a whitish crandallite. Variscite is known from dozens of localities around the world, but the specimens from Utah are amongst the better pieces from the United States. The species is named for the German district of Variscia, which was the medieval name for modern-day Vögtland.


Size: 9.8 x 5.5 x 4.6 cm. (2 unidades)

Ex. L. Daunis (Barcelona)
 

RM1609   Hydromagnesite

Artinite pit, Clear Creek area, Picacho Peak,, New Idria, San Benito Co., California, United States

Good sized hydromagnesite specimens from this mine and with this quality are uncommon. On the rocky matrix, several globular aggregates of transparent crystals, with a white aspect. Brilliant and very rich specimen. Specimen originally in the collection of Hubin (Belgium).


Size: 8.5 x 6.5 x 4.0 cm.
Main crystal: 3 mm glob.



 

RM1650   Ramsdellite

Mistake mine, Sam Powell Peak, Box Canyon, Yavapai Co., Arizona, United States

Very rich ramsdellite specimen, a rare manganese oxide, formed by several interpenetrated and some isolated groups of well defined crystals. Brilliance is really notable and on matrix. Ramsdellite from this small and defunct mine in a remote corner of Arizona was first found, in the early 1900s. However, the locality was apparently lost for some time and only rediscovered by the father/son team of Roy Jones and Dick Jones in the 1960s. These specimens are from a recent found in 2016.


Size: 6.5 x 5.5 x 3.0 cm.
Main crystal: 6 x 5 mm.
Found in 11/2016.



 

Rm1619   Ramsdellite

Mistake mine, Sam Powell Peak, Box Canyon, Yavapai Co., Arizona, United States

Very rich ramsdellite specimen, a rare manganese oxide, formed by several interpenetrated and some isolated groups of well defined crystals. Brilliance is really notable and on matrix. Ramsdellite from this small and defunct mine in a remote corner of Arizona was first found, in the early 1900s. However, the locality was apparently lost for some time and only rediscovered by the father/son team of Roy Jones and Dick Jones in the 1960s. These specimens are from a recent found in 2016.


Size: 8.0 x 3.6 x 2.8 cm.
Main crystal: 6 x 5 mm.
Found in 11/2016.

 
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