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RM1574   Azurite and Malachite

Morenci Mine, Shannon Mts., Morenci, Greenlee Co., Arizona, United States

Very aesthetic aggregates of lenticular azurite crystals forming these showy rosettes. Intense blue color. They are disposed very aerially on a matrix of malachite. No damage, perfect. A colorful classic of American mineralogy.


Size: 5.5 x 4.0 x 3.2 cm.
Main crystal: 8 x 7 mm.

 

RM444   Smithsonite with rosasite

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

It is a brilliant smithsonite specimen from a mine not well represented and very uncommon in the collections, including the American collections. These zinc carbonate crystals show a polysynthetic growths of rhombohedrons, color between white to colorless, with a strong pearlescent luster and forming botryoidal aggregates. They are accompanied by blue-green rosasite, in spherical aggregates.
This specimen
is interesting for different reasons. The accompanying old label belongs to the Antigua Casa (former house) Soler Pujol of Barcelona, ​​known for its collections relating to the natural history sciences. We add to its history that this specimen was in the collection of Mr. Lluís Daunis, also from Barcelona. An old specimen from a interesting American locality.


Size: 7,3 x 5,5 x 3,5 cm.
Main crystal: 1 x 1 mm.
Found in ca 1960.

Ex-col. Daunis.


 

RM708   Cerussite "Jackstraw"

Flux Mine (Goshen Mine), Flux Gulch, Alum Gulch, Patagonia Mts., Harshaw, Santa Cruz Co., Arizona, United States

A huge size and top quality "Jackstraw" cerussite specimen. The "jackstraw" habit consists of numerous randomly oriented elongated crystals. The best known locality for this "jackstraw" type are those specimens from the Flux mine, in Arizona.
It is formed by a rich group of elongated cerussite crystals with an intense white color, divergent growth and good brilliance. In a limonite matrix. Both sides are mineralized. A classic specimen from this American locality. It was adquired by Gerard Vogel (Netherlands) in 1961, in California.


Size: 9,5 x 6,1 x 4,2 cm.
Main crystal: 27 x 3 mm.
Found in 1960's.

Ex-coll. Dr. Gerard Vogel (NL).
Fluorescent under long wave UV
 

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.

Price: 55 €Buy
 

RM1439   Weeksite and Carnotite

Anderson Mine, Date Creek Basin, Yavapai Co., Arizona, United States

Several radial aggregates of tabular flattened weeksite crystals, of intense yellow color and transparency. Some of these aggregates are covered by chalcedony. With dendritic pyrolusite. They are accompanied by orange aggregates of carnotite crystals. It is a uranium-vanadium mineralization in fine-grained sedimentary and volcanic rocks. Analyzed specimen.


Size: 6.8 x 6.0 x 4.0 cm.

Presents radioactive activity.
 

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 €Buy
 

RM1467   Kernite

U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, United States

This huge size kernite specimen is formed by some glassy and translucent cleavage crystals. It is a rare borate, named after the namesake California county where it was discovered. It is extremely rare in sharp crystals. These crystals are not formed in the borate deposit itself, but rather in the tanks that are used to dissolve the borax. Every few years the tanks are shut down for maintenance. Kernite and primary tincalconite crystals are found growing on the large stirring blades and the walls of the tank. From the former Renaud Vochten collection (label will be send to the buyer).


Size: 9.8 x 7.5 x 4.2 cm.
Found in 1986.

Ex-col. Renaud Vochten.


 

RM1410   Desautelsite con artinite

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

A specimen for systematic collectors... A large group of needle-like colorless crystals (prismatic) of artinite, forming aesthetic rosettes. But in this sample we highlight some aggregates of desautelsite crystals, a rare manganese and magnesium carbonate found in very few locations. They are orange crystals forming groups together with the artinite.


Size: 4.4 x 2.4 x 1.4 cm.

 

RM1409   Desautelsite con artinite

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

A specimen for systematic collectors... A large group of needle-like colorless crystals (prismatic) of artinite, forming aesthetic rosettes. But in this sample we highlight some aggregates of desautelsite crystals, a rare manganese and magnesium carbonate found in very few locations. They are orange crystals forming groups together with the artinite.


Size: 4.3 x 1.6 x 1.8 cm.

 

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.



 

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
 

RM1402   Hübnerite with quartz

Adams Mine, Cement Creek, Eureka, San Juan Co., Colorado, United States

An excellent old classic from the American mineralogy. Really sharp crystals of hübnerite forming groups of parallel growths, some of them isolated. With the intense brown color and brilliance and an esthetic contrast with the snowy white matrix. Nowadays, it is very difficult to find specimens with this quality or any other quality...


Size: 8.8 x 4.5 x 3.8 mm.
Main crystal: 18 x 8 mm.

Ex. Schick collection


 

RM1809   Microcline, variety amazonite

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.


 

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


 

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


 

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.

 

RM1273   Pyromorphite

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

Barrel-shaped crystals of pyromorphite forming a druse from this American classic locality. It consists of a rich group of very brilliant crystals, color varies from olive green to yellowish and orange, rounded forms. They are disposed on a matrix of goethite. It is very uncommon find these specimens in the mineral market.


Size: 6.0 x 5.1 x 2.0 cm.
Main crystal: 4 x 3 mm.

 

RM1518   Baryte

Linwood Mine, Buffalo, Scott Co., Iowa, United States

Amazing 360º smoky, translucent, lustrous, doubly terminated crystal of baryte, with two curious smaller perpendicular crystals. Sample shows two different terminal faces, one is well defined with different orthorhombic prisms and pinacoids. The other one is really complex, with rounded faces. Very interesting inclusions, visible due to the excellent transparence of the crystal. No damage, no exfoliated faces. Very rare on the market.


Size: 9.0 x 4.2 x 3.9 cm.

Price: 150 € 110 €Buy
 

RM1519   Baryte

Linwood Mine, Buffalo, Scott Co., Iowa, United States

This specimen of baryte is one of the most aesthetic I've had to be sold... Added to its quality, the crystallographic "games" are more than interesting. It shows two barite crystals connected by a contact twin and sharing faces of different orders orthorhombic prisms. Very sharp faces and edges. With transparent to translucent zones and an exceptional brilliance. It preserve some of the original matrix. No damage. An exceptional specimen.


Size: 8.4 x 5.5 x 3.7 cm.

 

RM1378   Copper

Phoenix mine, Phoenix, Keweenaw Co., United States

An aesthetic arborescent copper specimen with several defined crystals, with good brilliance an colour. From a former collection.


Size: 7.8 x 5.0 x 1.8 cm.



 

RM1030   Copper

Keweenaw Peninsula, Michigan, United States

An interesting specimen of native copper showing laminar aggregates included within a solid slate matrix. A very different than usual for the species and locality.


Size: 9.5 x 5.4 x 3.5 cm.

 

RM892   Copper

Quincy Mine, Hancock, Houghton Co., Michigan, United States

Good sized and aerial specimen of native copper showing curved crystal faces, typical of these specimens, with good color and aesthetics. This specimen is from the findings made in the mid-90 in this American mine. It has not been treated with chemicals, so its color and brightness are natural.


Size: 9.0 x 6.0 x 2.5 cm.
Found in ±1995.

Peso / weight: 217 g. - 7.65 oz.
 

RM891   Copper

Quincy Mine, Hancock, Houghton Co., Michigan, United States

Good sized specimen of native copper showing complex crystal faces, typical of these specimens, with good color, brilliance and aesthetics. This specimen is from the findings made in the mid-90 in this American mine. It has not been treated with chemicals, so its color and brightness are natural.


Size: 6.0 x 4.8 x 2.8 cm.
Found in ±1995.

Peso / weight: 141 g. - 4.97 oz.
 

RM862   Calcite with dolomite and chalcopyrite

Sweetwater Mine, Ellington, Reynolds, Missouri, United States

A very nice specimen from a classic American locality. A group of interpenetrated calcite crystals showing curvatures on their faces and edges. They are transparent to translucent and have a delicate yellow color with zonation. With small rhombohedral crystals of dolomite, peppered by microcrystals of chalcopyrite.


Size: 9.0 x 8.5 x 7.5 cm.
Main crystal: 5.2 x 1.8 cm.

 
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