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One of a very few tourmalines I found in this old collection with this classic combination from the 1960s or 1970s: nice brilliant lustre, glassy surface, intense color zoning between pink to green. Parallel groth, terminal rhombohedrons and a crossing prismatic pink small crystal between them. This well-known pegmatite mine was discovered in 1991 and produced very colorful tourmalines. Nice gem.
Baryte specimens from this Maghrebian locality are very unusual. They appear labeled as Irhoud and there is a discussion about the locality. These are aggregates of tabular lanceolate baryte crystals those form beautiful rosettes, very aerial disposed, with inclusions those give them these reddish tones. On a matrix with quartz. A rarity.
Echemaïa (Arabic: الشماعية) is a city of Morocco, located in the region of Marrakech-Safi between the city of Safi and Marrakech. Formerly called "Al Kasba" it was renamed "Chemaïa" (literally: "La Chandelière") since the establishment of one of the largest candle factories in the region.
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...
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...
A superb, well-balanced spray of amethyst crystals from the famous Guerrero locality. An aesthetic cluster of colored amethyst crystals, representing fine color from this deposit, in crystals which are still gemmy and translucent. Not easy to find nowadays. Ex. J.M. Manchion collection.
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.
Well developed group of celestine crystals, showing defined faces and edges, interpenetrated, translucent and with a blue color zoning. It is an unusual locality in collections.
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.
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...
An aesthetic fluorite specimen showing a violet tone turned to pink, crystals very clear, transparent and arranged on tiny quartz crystals. But what makes this piece special is the triple interpenetrating spinel twin that shows the largest group of crystals. Others crystals show double interpenetration of two individuals. Very fluorescent under LW-UV. A more than remarkable piece.
Incredible specimen formed by a native copper matrix, covered by calcite white rhombohedrons, very well defined and translucent. They are accompanied by numerous crystals of up to 2 mm of cuprite: exceptional under the magnifying glass. Most show the forms of the dodecahedron, but also in octahedra. A remarkable example of this classic mine.
Very esthetic specimen formed by numerous aggregates of crystals of calcite manganoan, very bright, transparent to translucent, forming globular groups very well set on the matrix. They present a slightly pinkish tone due to the presence of Mn. Extremely fluorescent under LW-UV, with a spectacular pink to red color. They are accompanied by small octahedral cubic crystals of colorless and transparent fluorite. In a matrix of bright crystals of pyrite, sphalerite and galena. An exceptional piece.
A definitive specimen of Mibladen cerussite. Transparent to translucent crystals, with an exceptional brightness, unusual, with numerous and aesthetic perfect cyclic twins. Closely observed, it becomes a crystallographic pleasure. One of the best cerussite specimens of Mibladen I've seen... With label from former Manchion collection.
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.
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.
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.
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.
Vuggy specimen with many cavities lined with sharp tabular wulfenite crystals. They are transparent to translucent, orange to yellow color, with green duftite throughout and malachite globular aggregates. The wulfenite crystals are coated on a druse of white calcite rhombohedral crystals. The crystals are undamaged. Very different than usual.
An interesting and showy Tsumeb specimen, puffball of lustrous primary malachite acicular crystals, nicely disposed on matrix covered with very glassy, colorless, calcite rhombohedral crystals.
A glassy, translucent to transparent, very sharp, colorless adularia interpenetrated crystals from this classic Swiss locality. Green chlorite has nicely dusted and accented this excellent piece, which is complete all-around and is essentially pristine, except for contacting at the base. An old specimen.
Val Giuv is very rich in Alpine-type fissures, in particular, the Giuv syenite. Pockets are unevenly distributed and are concentrated along the southern boundary of the Giuv syenite rock body. Alpine-type fissures also occur in the aplite dikes but differ slightly in their paragenesis (beryllium minerals like milarite only occur in and around aplites).
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.
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.
A very aesthetic specimen that shows a vug in the sulphide matrix, partially covered by tabular lanceolated crystals of erythrite. They are disposed very aerial in elegant radial aggregates. Intense color and transparence. They are accompanied by small groups of pale pink almost colorless talmessite-wendwilsonitecrystals of and almost black crystals of arseniosiderite. All standing out on the dolomite. A sample of very good quality and that under increase makes us enjoy these arsenates. We will send all the analytical results to the buyer.
Aesthetic specimen of eucroite formed by several groups of crystals of this rare hydrated copper arsenate. Crystals show rhombic idiomorphic forms, with defined and bright faces, between translucent to transparent. Under loupe are really atractive. Intense emerald green color, very characteristic, and in the typical shale matrix. In addition from t0he type locality. A systematic fine piece.
This specimen is "showing" an excellent group of eucroite crystals, one of them of more than one centimeter, with a remarkable size for this rare hydrated copper arsenate. Crystals present lenticular to rhombic forms, with defined edges, brilliant faces, transparent to translucent. Intense emerald green color, very characteristic. To add more interest, from the type locality. An exceptional piece.