Mineral specimens search results

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Neptunite crystals with very well defined terminations, very bright and on a rock matrix coated by white Natrolite. We’ll send to the buyer the original label and also a copy of the computer card with the full text in the collection catalog.
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California USA
Specimen size: 4.8 × 3.3 × 1.8 cm = 1.89” × 1.30” × 0.71”

NB26AI3: Neptunite on Natrolite

Group of isolated and very bright Neptunite crystals with very well defined faces and edges. One of them, clearly dominant, is doubly terminated and is on a perfectly vertical position on its Natrolite matrix. An American classic of great quality.
The sample is from the Ignacio Hernández collection (num. 56) whose original label we’ll send to the buyer.
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California USA
Specimen size: 6.1 × 2.8 × 2.9 cm = 2.40” × 1.10” × 1.14”

Main crystal size: 3.2 × 0.9 cm = 1.26” × 0.35”

AY87N2: Neptunite with Benitoite and Natrolite

Very bright and sharp Neptunite crystals, some of them doubly terminated, of very well defined faces and edges. On matrix with white Natrolite, with a small crystal of Benitoite.
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California USA
Specimen size: 6.4 × 3.6 × 2.1 cm = 2.52” × 1.42” × 0.83”

TB79H1: Neptunite with Benitoite and Natrolite

A magnificent combination of the two uncommon species. Both the prismatic crystals of Neptunite and the flat crystals of Benitoite have very sharp well-defined faces and edges, with excellent terminal faces completely free of damage. Color and luster of both minerals are also excellent.
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California USA
Specimen size: 4.2 × 3.1 × 1 cm = 1.65” × 1.22” × 0.39”

Main crystal size: 1.8 × 0.6 cm = 0.71” × 0.24”

EG50J0: Neptunite with Benitoite on Natrolite

Magnificent specimen with the main crystal prismatic and doubly terminated. The crystals on the sample have excellent luster enhanced by the white matrix of Natrolite. Spread on the matrix there are some small, perfectly sharp, crystals of Benitoite.
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California USA
Specimen size: 7 × 5.5 × 2.5 cm = 2.76” × 2.17” × 0.98”

TC280NAF: Nickeline

Granular aggregates of lustrous, salmon-pink Nickeline, on matrix, with other unidentified metal sulfides. The specimen comes from the Ignacio Gaspar Sintes collection (number NIQ-4), whose label we will send to the buyer.
La Gallega Mine, Los Sauces, Ojén, Comarca Costa del Sol Occidental, Málaga, Andalusia Spain
Specimen size: 4.5 × 3.5 × 2.7 cm = 1.77” × 1.38” × 1.06”

TZ66AK3: Nickeline

Aggregate of well defined crystals, some of them extraordinarily sharp, something quite rare for the species. Lustrous and with a little matrix on the back. A rarity from a classic locality.
Pöhla, Schwarzenberg District, Erzgebirgskreis, Saxony/Sachsen Germany
Specimen size: 2.3 × 1.8 × 1.9 cm = 0.91” × 0.71” × 0.75”

MH96AM7: Nickeline with Calcite and Acanthite

Aggregates of small Nickeline crystals on a Calcite matrix, lustrous, with a grey color with reddish tones. With the Nickeline there is also a very sharp and bright Acanthite crystal.
Balcoll Mine, Falset, Comarca Priorat, Tarragona, Catalonia / Catalunya Spain
Specimen size: 4.2 × 4.2 × 2.5 cm = 1.65” × 1.65” × 0.98”

EPR91AQ1: Nickelskutterudite

Druse of cubic Nickelskutterudite crystals slightly truncated by the octahedron, lustrous, and with fine polycrystalline growths. An excellent German classic from the type locality for the species. This specimen, from the Moutet collection (Marseille), has been analyzed and we will send a copy of the analysis to the buyer.
Schneeberg District, Erzgebirgskreis, Saxony/Sachsen Germany
Specimen size: 4.8 × 3.1 × 1.8 cm = 1.89” × 1.22” × 0.71”

MT49AE4: Niobophyllite with Aegirine and Orthoclase

A novelty at Munich 2016. Well individualized Niobophyllite crystals with parallel growths, an intense color, and with Aegirine and Orthoclase. The sample is from a recent find in a relatively new open area far from the well-known Mount Malosa.
This sample has been photographed and published as a novelty in Munich 2016 in the magazine Le Règne Minéral number 132, page 49, the magazine ‘Mineral Up’ on page 59 of the 2016/02 edition and the magazine ‘Paragénesis’, number 01/2017, page 68
Machinga, Machinga District Malawi (2016)
Specimen size: 4 × 3.7 × 2.6 cm = 1.57” × 1.46” × 1.02”

Main crystal size: 3.5 × 1 cm = 1.38” × 0.39”

SM50NGB: Nontronite (variety calcian) with Hollandite

Flattened, radial and scoriaceous growths of yellow calcian Nontronite that have completely replaced earlier Laumontite crystals. Calcian Nontronite is filling vacuoles of a volcanic rock. We will provide a copy of the analysis to the buyer.
Can Súria Quarry (Guixeres Quarry), Maçanet de la Selva, Comarca La Selva, Gerona / Girona, Catalonia / Catalunya Spain (05-06/2008)
Specimen size: 9.4 × 6.1 × 3.8 cm = 3.70” × 2.40” × 1.50”

SM50NMA: Nontronite (variety calcian) with Hollandite

Flattened, radial and scoriaceous growths of yellow calcian Nontronite that have completely replaced earlier Laumontite crystals. Calcian Nontronite is filling vacuoles of a volcanic rock. We will provide a copy of the analysis to the buyer.
Can Súria Quarry (Guixeres Quarry), Maçanet de la Selva, Comarca La Selva, Gerona / Girona, Catalonia / Catalunya Spain (05-06/2008)
Specimen size: 8.9 × 8.7 × 3.5 cm = 3.50” × 3.43” × 1.38”

NJ8M3: Nontronite (variety calcian) with Hollandite

A new species for Spanish mineralogy. Flattened, radial and scoriaceous growths of yellow calcian Nontronite that have completely replaced earlier Laumontite crystals. Calcian Nontronite is filling vacuoles of a volcanic rock. We will provide a copy of the analysis to the buyer.
Can Súria Quarry (Guixeres Quarry), Maçanet de la Selva, Comarca La Selva, Gerona / Girona, Catalonia / Catalunya Spain (05-06/2008)
Specimen size: 9.3 × 7.5 × 4.6 cm = 3.66” × 2.95” × 1.81”

NC8L9: Nontronite (variety calcian) with Hollandite

A new species for Spanish mineralogy. Flattened and scoriaceous growths of yellow calcian Nontronite, that have completely replaced earlier Laumontite crystals, while preserving their shape. With some black scoriaceous Hollandite thin stains. Calcian Nontronite is filling vacuoles of a volcanic rock. We will provide a copy of the analysis to the buyer.
Can Súria Quarry (Guixeres Quarry), Maçanet de la Selva, Comarca La Selva, Gerona / Girona, Catalonia / Catalunya Spain (05-06/2008)
Specimen size: 5.4 × 4.3 × 2.7 cm = 2.13” × 1.69” × 1.06”

NP57M3: Nontronite (variety calcian) with Hollandite

A new species for Spanish mineralogy. Flattened, radial and scoriaceous growths of yellow calcian Nontronite that have completely replaced earlier Laumontite crystals. Calcian Nontronite is filling vacuoles of a volcanic rock. We will provide a copy of the analysis to the buyer.
Can Súria Quarry (Guixeres Quarry), Maçanet de la Selva, Comarca La Selva, Gerona / Girona, Catalonia / Catalunya Spain (05-06/2008)
Specimen size: 10 × 8.2 × 4.8 cm = 3.94” × 3.23” × 1.89”

MD37F5: Norbergite and Spinel on Calcite

Two different minerals in the same specimen: orange Norbergite stands on white Calcite and at the other end there is a red (in fact slightly purple) octahedral Spinel. Good color contrast in this neat specimen.
Oak-saung-taung, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region (Mandalay Division) Myanmar (Burma) (2003)
Specimen size: 9.3 × 8.4 × 4.3 cm = 3.66” × 3.31” × 1.69”

Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”

TM26D8: Octahedral Fluorite

While this locality has produced lots of material and quite often produces good ones, this octahedral Fluorite is really nice. This is due to the crystal size, their definition and the intensity of their color. A major sample for a reasonable price.
Mina Navidad, Abasolo, Rodeo, Municipio de Rodeo, Durango Mexico (2003)
Specimen size: 12.2 × 10.5 × 3 cm = 4.80” × 4.13” × 1.18”

NB10AC5: Octahedral Fluorite

Druse of very sharp octahedral crystals that are translucent, have a vivid and uniform green color and are on a matrix of granitic rock.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia / Catalunya Spain (1975-1976)
Specimen size: 7.6 × 4.2 × 3.8 cm = 2.99” × 1.65” × 1.50”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

NG60AC5: Octahedral Fluorite

Octahedral crystals with small cube faces on the vertices. They are translucent, have a uniform green color and are implanted on a granitic rock matrix with small white Quartz crystals.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia / Catalunya Spain (1975-1976)
Specimen size: 6.5 × 6 × 4.2 cm = 2.56” × 2.36” × 1.65”

MA14AC5: Octahedral Fluorite

Very sharp octahedral crystals on a granitic rock matrix. They are transparent and have a uniform green color.
The sample is from the Joan Abella collection and we’ll send the label to the buyer.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia / Catalunya Spain (1975-1976)
Specimen size: 8.4 × 6.3 × 5 cm = 3.31” × 2.48” × 1.97”

Main crystal size: 1.4 × 1 cm = 0.55” × 0.39”

MT47AK4: Octahedral Fluorite

Druse on matrix of sharp octahedral crystals of Fluorite, translucent and of a uniform green color that is more intense than usual at the locality. A Catalan classic of great quality.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia / Catalunya Spain
Specimen size: 8.3 × 5.4 × 5.4 cm = 3.27” × 2.13” × 2.13”

MF37AC3: Octahedral Fluorite

Aggregate of very sharp octahedral Fluorite crystals. They are between transparent and translucent and have an intense and very uniform green color.
Riemvasmaak, Orange river area, Kakamas, ZF Mgcawu District, Northern Cape Province South Africa (±2005)
Specimen size: 7.3 × 4.2 × 5.5 cm = 2.87” × 1.65” × 2.17”

Main crystal size: 4.8 × 4.8 cm = 1.89” × 1.89”

N8ZH5: Octahedral Fluorite

We call attention to the locality. Crystals are octahedral and the faces and edges are well defined and deep violet, so dark that it is nearly black.
Arteixo, Comarca A Coruña, La Coruña / A Coruña, Galicia / Galiza Spain (1999)
Specimen size: 6.9 × 3.3 × 2.3 cm = 2.72” × 1.30” × 0.91”

FF62G6: Octahedral Fluorite

The Fluorite octahedrons of this piece are distributed "in crescendo" and just finishing in two main interpenetrated crystals. The color is curious, with a mélange of purple and green and white zones giving them a "snowy" aspect.
Monarch Mine, Cherry, Cherry Creek District, Black Hills, Yavapai County, Arizona USA
Specimen size: 4.4 × 3.9 × 3.8 cm = 1.73” × 1.54” × 1.50”

Main crystal size: 1.6 × 1.5 cm = 0.63” × 0.59”

FF59H5: Octahedral Fluorite

This group on matrix of green octahedral crystals with very well defined faces and edges came from a not well known Australian locality.
Mungana, Chillagoe-Herberton District, Queensland Australia
Specimen size: 3.2 × 2.6 × 3 cm = 1.26” × 1.02” × 1.18”

12722 results found.

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