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EF37AL9: Prehnite with Epidote and Albite
Prehnite crystals with sharp edges and well defined faces. With very marked curvatures and polycrystalline growths, translucent, shiny, and with an intense green color. On matrix, with Calcite and small, very sharp crystals of Epidote, transparent, very lustrous and with deep color. Excellent French classic from one of the typical localities for the species.
La Combe de la Selle, Saint-Christophe-en-Oisans, Le Bourg d'Oisans Comune, Isère, Auvergne-Rhône-Alpes  France (±1990)
Specimen size: 4.3 × 3.4 × 2.9 cm = 1.69” × 1.34” × 1.14”
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MA7AL5: Prehnite with Epidote and Calcite
Prehnite crystals with very well defined faces and edges and with curvatures, with polycrystalline growths, translucent, bright, and with an intense green color. On matrix, with Calcite and highly profiled Epidote crystals, transparent, very bright and with an unusually deep color. Excellent French classic from one of the classic localities for the species.
La Combe de la Selle, Saint-Christophe-en-Oisans, Le Bourg d'Oisans Comune, Isère, Auvergne-Rhône-Alpes  France
Specimen size: 6.8 × 5.8 × 3.1 cm = 2.68” × 2.28” × 1.22”

Main crystal size: 1.7 × 1.7 cm = 0.67” × 0.67”
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MQ26AK7: Prehnite with Epidote and Feldspar
New in Munich 2019: Spheroidal growths of uniformly pale green Prehnite on ophite matrix coated with small Epidote crystals and flattened crystals of a white feldspar, possibly Albite.
This sample has been referenced and pictured, as a novelty in Munich 2019, in the magazine ‘Mineralien Welt’ and appears on page 63 of number 1/2020 as well as in the magazine ‘Mineral Up’ on page 52 of the 2020/01 edition.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region  Morocco (08/2019)
Specimen size: 8.2 × 6.6 × 4.7 cm = 3.23” × 2.60” × 1.85”
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MM16AK7: Prehnite with Epidote and Feldspar
New in Munich 2019: Prehnite as spheroidal growths, one of them clearly dominant, a uniform pale green, and on an ophite matrix covered with small Epidote crystals.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region  Morocco (08/2019)
Specimen size: 6.8 × 6.7 × 4.8 cm = 2.68” × 2.64” × 1.89”

Main crystal size: 4.3 × 4.1 cm = 1.69” × 1.61”
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MQ89AL3: Prehnite with Epidote and Ferro-actinolite
Spheroidal growths of good sized Prehnite crystals with their main faces perfectly distinguishable, of a uniform dark green color, on an ophitic matrix covered with small crystals of dark colored Ferro-actinolite and lighter colored Epidote.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region  Morocco (08/2019)
Specimen size: 11.8 × 9 × 5.2 cm = 4.65” × 3.54” × 2.05”
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MP66AK7: Prehnite with Epidote and Quartz
New in Munich 2019: Prehnite as spherical aggregate of uniform pale green color, on ophite matrix coated with small Epidote crystals and transparent lustrous flattened crystals of Quartz.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region  Morocco (08/2019)
Specimen size: 7.5 × 6.8 × 5.6 cm = 2.95” × 2.68” × 2.20”

Main crystal size: 4.6 × 4.3 cm = 1.81” × 1.69”
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E16BK9: Prehnite with Epidote and Quartz
Globular growth of well defined faces, showing a deep green color. With small Quartz crystals on matrix.
Jebel Melh, Bou Arfa, Figuig Province, Oriental Region  Morocco (2000)
Specimen size: 6.8 × 5.2 × 3.8 cm = 2.68” × 2.05” × 1.50”
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KQ47M0: Prehnite with Epidote, Quartz and Clinochlore
Groups of Prehnite curved crystals forming globular aggregates. On a matrix with Quartz, Epidote and Clinochlore.
The specimen is from the James Catmur collection and we’ll send the label with it. Very esthetic piece.
Jebel Melh, Bou Arfa, Figuig Province, Oriental Region  Morocco (1994)
Specimen size: 9 × 8.4 × 4.8 cm = 3.54” × 3.31” × 1.89”
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17MRP61: Prehnite with Graphite
Spheroidal growth of Prehnite crystals with perfect terminations, translucent, with a very bright luster and an intense yellow color, with small black traces of Graphite. Comes from a mine that is world-renowned for its tsavorites and tanzanites, but which has also yielded several other mineral species, including this aesthetic Prehnite, in addition to 3 type locality (TL) species.
Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region  Tanzania
Specimen size: 3.3 × 2.7 × 2.1 cm = 1.30” × 1.06” × 0.83”
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NRA46AN9: Prehnite with Orthoclase
Very aerial group of Prehnite crystals, of good size for the locality, with crystal forms that are unusually sharp for the species, between translucent and transparent, with good luster and a greenish yellow color, on an Orthoclase matrix, associated with crystals of the Clinozoisite-Epidote (Series)
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain
Specimen size: 5.4 × 4.7 × 3.2 cm = 2.13” × 1.85” × 1.26”

Main crystal size: 1 × 0.9 cm = 0.39” × 0.35”
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MRB87AP3: Prehnite with Orthoclase (variety adular) and Actinolite (variety byssolite)
Very aerial group of Prehnite crystals with very well defined faces and edges, with curvatures and very distinct polycrystalline growths. They are translucent, shiny, and a uniform green, on matrix, with small white crystals of Orthoclase (adularia variety) and felted aggregates of Actinolite (byssolite variety). Excellent French classic from a typical locality for the species.
La Combe de la Selle, Saint-Christophe-en-Oisans, Le Bourg d'Oisans Comune, Isère, Auvergne-Rhône-Alpes  France
Specimen size: 10.7 × 6.5 × 3.9 cm = 4.21” × 2.56” × 1.54”
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EQ76Z9: Prehnite with Orthoclase (variety adularia), Epidote and Amphibole
Polycrystalline Prehnite aggregate with very well defined curved faces and edges. They are bright, have an intense green color and are on a surface of Orthoclase (adularia) crystals with small acicular amphibole crystals coating a rocky matrix. On the Prehnite aggregate there is a small smooth and very white Orthoclase surface. An excellent French classic.
La Combe de la Selle, Saint-Christophe-en-Oisans, Le Bourg d'Oisans Comune, Isère, Auvergne-Rhône-Alpes  France
Specimen size: 6.8 × 5.4 × 3.6 cm = 2.68” × 2.13” × 1.42”

Main crystal size: 1.4 × 1.4 cm = 0.55” × 0.55”
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JFD138AO6: Prehnite with Quartz
Curious things come out of every great vug, like this Prehnite that has three Quartz crystals protruding from it and that at the same time are covered with Prehnite. But the best thing about the piece (for me) is that it was found by James Catmur, with whom I exchanged it in 1993.
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain (10/1992)
Specimen size: 6.2 × 3.7 × 2.4 cm = 2.44” × 1.46” × 0.94”
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TX6AL4: Prehnite with Quartz
Group of Prehnite crystals that partially cover a water-clear Quartz crystal. The Prehnite crystals, more individualized than usual for the species, with defined faces and edges, are translucent, shiny, and have a uniform pale green color.
We will send the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Goboboseb Mountains, Brandberg area, Erongo Region  Namibia
Specimen size: 3.6 × 1.5 × 1.1 cm = 1.42” × 0.59” × 0.43”
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XM2160EPM: Prehnite with Quartz
Globular aggregates formed by a multitude of Prehnite crystals, on matrix, with a skein-like habit, a uniform light green color, but with the edges more whitish, partially covered by Quartz. This is one of the characteristic habits of Imilchil prehnites, although in this case larger than usual.
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region  Morocco (2022)
Specimen size: 9.8 × 9.7 × 8.7 cm = 3.86” × 3.82” × 3.43”
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MB6AI5: Prehnite with Quartz
Double spheroidal Prehnite growth with very well defined polycrystalline surfaces. It is translucent, bright with a uniform pale green color and is implanted on a matrix coated by white Quartz. Of high quality, as is usual with samples from the Desmond Sacco collection.
Erongo Mountain, Usakos, Erongo Region  Namibia (±2008)
Specimen size: 5.8 × 5.2 × 3.5 cm = 2.28” × 2.05” × 1.38”

Main crystal size: 3.8 × 3.4 cm = 1.50” × 1.34”
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ED37X4: Prehnite with Quartz
Spheroidal aggregates of crystals with good terminations, a clear and uniform green color and good luster, and on matrix with small Quartz crystals. It is currently difficult to obtain good samples from this mine, as it is actually abandoned.
Jebel Melh, Bou Arfa, Figuig Province, Oriental Region  Morocco (05/1999)
Specimen size: 9.7 × 6.7 × 4.5 cm = 3.82” × 2.64” × 1.77”
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SM220EJ: Prehnite with Quartz
Spheroidal growths of translucent Prehnite crystals, pale green in color, on matrix with Quartz.
Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai  Russia
Specimen size: 10.2 × 5.4 × 3.6 cm cm = 4.02” × 2.13” × 1.42”
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JFD29AN6: Prehnite with Quartz and Epidote
It's been a long time since these unique prehnites were seen for the first time, from a remote locality in the deep South of Morocco. Due to the difficulties caused by being close to the border, the work was abandoned and, although pieces from this locality reappear sporadically due to individual adventures, it has never become a classic Moroccan locality despite the fact that it could easily qualify due to the richness of what is apparently there.
Jebel Melh, Bou Arfa, Figuig Province, Oriental Region  Morocco (1995)
Specimen size: 13.7 × 9.8 × 9.9 cm = 5.39” × 3.86” × 3.90”
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AQ8Q6: Prehnite with Quartz and Orthoclase
Group of bright crystals of Prehnite with yellowish green color, with a flattened Quartz crystal and small Orthoclase crystals.
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain (03/1999)
Specimen size: 7.2 × 5.4 × 2.2 cm = 2.83” × 2.13” × 0.87”
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N46BG4: Prehnite with Quartz, Orthoclase and Clinozoisite-Epidote
Crystals, defined and closely grouped, have an excellent luster and a pleasant clear color, between green and yellow. On the back side, around the Quartz, which is the nucleus of crystallization, some fragments of Orthoclase and little acicular crystals of a species in the series Epidote - Clinozoisite appear.
Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain (02/1999)
Specimen size: 10.5 × 7.5 × 4 cm = 4.13” × 2.95” × 1.57”
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20EBL27: Prehnite, Graphite
Divergent growths of Prehnite crystals in two preferred directions, with perfect terminations, translucent, very lustrous, with an intense and uniform yellow color, and with a line of black Graphite crystals with a silky luster aligned on the upper face of one of the groups of Prehnite crystals and small remnants of whitish Calcite. From a mine that is world-renowned for its tsavorites and tanzanites but which has also yielded several other mineral species, among them this aesthetic Prehnite, in addition to 3 type locality (TL) species.
Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region  Tanzania
Specimen size: 5.9 × 4.2 × 2.8 cm = 2.32” × 1.65” × 1.10”
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MC66AM7: Prosopite with Azurite
Floater botryoidal growth of Prosopite, a rare calcium and aluminum fluoride of turquoise-blue color, with vivid blue deformed Azurite crystals.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
Mazapil, Municipio Mazapil, Zacatecas  Mexico
Specimen size: 3.3 × 2.3 × 2.5 cm = 1.30” × 0.91” × 0.98”
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CTP13AP7: Proustite
Elongated Proustite crystals with acute pyramidal terminations, on matrix, transparent, with very bright luster and an intense and vivid color. The specimen comes from the Carles Curto collection's duplicates (number 2003.05), whose label and digital file we will send to the buyer.
Imiter Mine, Jebel Saghro, Imiter District, Tinghir Province, Drâa-Tafilalet Region  Morocco (±2003)
Specimen size: 2.3 × 2.2 × 1.3 cm = 0.91” × 0.87” × 0.51”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”
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TM26AD6: Proustite
Spheroidal aggregates of short prismatic Proustite crystals that are translucent and have very well defined faces and edges.
Imiter District, Tinghir Province, Drâa-Tafilalet Region  Morocco (01-02/2011)
Specimen size: 3.9 × 2.9 × 3.1 cm = 1.54” × 1.14” × 1.22”

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