The Core of Expo Mineral Show (3)

SV3440ETM

A peculiar discovery from 2021 in the Austria Duvas Mine, where these rhodochrosites appeared in rosette shapes associated with Quartz and minor Sphalerite. Their striking resemblance to the rhodochrosites from Cavnic, Romania, is curious to the extent that at mineral shows, Romanian dealers seeking pieces for their home market sometimes get confused and believe that they are from their own country.
In any case, they are truly pretty, and this one, in addition, quite big.

Austria Duvas Mine, Morococha District, Yauli Province, Junín Department Peru (07/2021)

Specimen size: 15.4 x 9.8 x 7.8 cm

SV3290EFG

A peculiar discovery from 2021 in the Austria Duvas Mine, where these rhodochrosites appeared in rosette shapes associated with Quartz and minor Sphalerite. Their striking resemblance to the rhodochrosites from Cavnic, Romania, is curious to the extent that at mineral shows, Romanian dealers seeking pieces for their home market sometimes get confused and believe that they are from their own country.
In any case, they are truly pretty.

Austria Duvas Mine, Morococha District, Yauli Province, Junín Department Peru (07/2021)

Specimen size: 11.8 x 7.7 x 5.4 cm

SV3140EJK

A peculiar discovery from 2021 in the Austria Duvas Mine, where these rhodochrosites appeared in rosette shapes associated with Quartz and minor Sphalerite. Their striking resemblance to the rhodochrosites from Cavnic, Romania, is curious to the extent that at mineral shows, Romanian dealers seeking pieces for their home market sometimes get confused and believe that they are from their own country.
In any case, they are truly pretty.

Austria Duvas Mine, Morococha District, Yauli Province, Junín Department Peru (07/2021)

Specimen size: 7.4 x 4.6 x 3.1 cm

SV3190NBJ

Good aesthetics and magnificent luster. Another one of Miguel David Martínez's excellent choices for his collection.
We will send the label (number 826) to the buyer of the piece.

Sakoany deposit, Katsepy Commune, Mitsinjo District, Boeny Region, Mahajanga (Majunga) Province Madagascar

Specimen size: 10.7 x 7.7 x 5.6 cm

Main crystal size: 2.4 x 2 cm

Former collection of Miguel David Martínez

SV3340EPZ

Floater Copper group of good size, twisted and partially replaced by Malachite, very characteristic of the Bou Nahas Mine.
It is one of those pareidolia-generating pieces whose shape strongly resembles that of a horse (or a dragon)

Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region Morocco (2023)

Specimen size: 10.3 x 8.2 x 5.1 cm

SV3180NTR

A group of large Fluorite crystals heavily coated by Quartz, somewhat larger than usual for this locality, giving them an unusual, yet beautiful appearance.

El Hammam, Ait Mimoune, Khémisset Province, Rabat-Salé-Kénitra Region Morocco

Specimen size: 9.7 x 8.5 x 5.4 cm

Main crystal size: 5.1 x 4.2 cm

SV3490TBF

It is not easy to find an Erythrite in good condition. Old or very old pieces are sometimes more competitive than modern ones, although their color can also be darker.
This old piece embodies many qualities such as perfection and the abundance of crystals, and those small sharp Quartz crystals are a big help.

Bou Azzer Mines, Bou Azzer mining district, Ouarzazate Province, Drâa-Tafilalet Region Morocco

Specimen size: 5.2 x 4.1 x 3.7 cm

Main crystal size: 1 x 0.5 cm

SV3440NFX

A great discovery, like the one that occurred in the Coud’a area, Mibladen, between April and May of 2019, yields exceptional pieces but also “satellite” pieces, pleasant ones, that due to the magnitude of the find, can be reasonably priced.
This is a piece on matrix, and it is in perfect condition. Its color is pleasant, and overall it is a good representative of the species for any collection, as evidenced by its previous stay in the Miguel David Martínez collection with the number 761. We will send the label to the buyer.

Coud'a, Mibladen mining district, Mibladen, Midelt, Midelt Province, Drâa-Tafilalet Region Morocco (04-05/2019)

Specimen size: 6 x 5.1 x 3.2 cm

Main crystal size: 1 x 0.8 cm

Former collection of Miguel David Martínez

SV390ETE

With a little initial confusion due to the lack of precision about the real locality, these “window” quartzes are gradually gaining recognition on the mineralogical circuit.
With their luster and beautiful architecture, they are helping to complete the already extensive inventory of minerals from the generic “Imilchil” area.

Tighiste (Tirrhist), Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region Morocco

Specimen size: 6 x 3 x 3 cm

Main crystal size: 4.3 x 3 cm

SV3380TFR

Norway has some fame for the calcites from this mine. Their color, luster, and the multiple growths on the crystal faces are very characteristic, just like this piece.

Dalen-Kjørholt Mine, Kjørholt, Brevik, Porsgrunn, Telemark, Østlandet Norway

Specimen size: 6 x 5.2 x 4 cm

Main crystal size: 4.7 x 1.4 cm

Former collection of Scott Maylen

SV3640TFR

Thulite is a variety of Zoisite of which only a few crystals were known. Chance discoveries made in January 2019 in a tunnel yielded well-crystallized specimens that can be considered world-class examples and also a reference standard for this variety.

Mjønes Tunnel, Åstfjorden, Snillfjord, Orkland, Fosen, Trøndelag Norway (01/2019)

Specimen size: 7 x 5.8 x 3.9 cm

Main crystal size: 1.3 x 0.3 cm

SV3240TJA

Thulite is a variety of Zoisite of which only a few crystals were known. Chance discoveries made in January 2019 in a tunnel yielded well-crystallized specimens that can be considered world-class examples and also a reference standard for this variety.

Mjønes Tunnel, Åstfjorden, Snillfjord, Orkland, Fosen, Trøndelag Norway (01/2019)

Specimen size: 5.9 x 3.9 x 3.9 cm

Main crystal size: 0.6 x 0.4 cm

SV3230TGP

Full of crystals, many of them doubly terminated and of good quality.
Powerful and highly aesthetic due to the contrast between the white Harmotome and the brown Calcite at the base.

Whitesmith Mine, Strontian, Lochaber, Argyll and Butte Scotland / United Kingdom

Specimen size: 6 x 5.5 x 3.1 cm

Main crystal size: 0.7 x 0.6 cm

SV3140TPZ

A brilliant piece. The Siderite specimens from this forgotten locality were once a subject of debate because their appearance resembled Goethite. However, this is actually due to the presence of Goethite, which forms a thin layer covering the outer part of the Siderite “stalactites”!
As is often the case, mineral collection and preservation prove to be valuable to the field of mineralogy.

Mina Peyreblanque, Alban, Albi, Tarn, Occitanie France

Specimen size: 7.4 x 4.6 x 3.8 cm

Main crystal size: 3.9 x 0.6 cm

SV3120TFR

From a desirable locality in France comes this Pyromorphite, very fine and very elegant with its associated transparent Quartz crystals. A little luxury.

Lafont (Lafont-en-Poule), Poule-les-Echarmeaux, Villefranche-sur-Saône, Rhône, Auvergne-Rhône-Alpes France

Specimen size: 2.7 x 2.3 x 1.7 cm

Main crystal size: 0.2 x 0.1 cm

SV380TBF

Mimetite is not the most famous mineral species in Lantignié, but it's there, and within its modesty, this Mimetite is one of the most representative that I remember ever seeing from there.

Lantignié, Villefranche-sur-Saône, Rhône, Auvergne-Rhône-Alpes France

Specimen size: 2.8 x 2.1 x 2.2 cm

Main crystal size: 0.3 x 0.2 cm

SV3260TBX

The Baryte in the center of the piece, the Fluorite crystals, although small, being transparent and with color zoning, which is intense in the center of the crystals: everything we love about Berbes.

Berbes mining area, Berbes, Ribadesella, Comarca Oriente, Principality of Asturias (Asturias) Spain

Specimen size: 10 x 6.7 x 4.2 cm

Main crystal size: 1.3 x 1.3 cm

SV3280NXP

The Moscona Mine also yields good calcites with all sorts of sometimes very curious crystallizations, like this group, standing up on its matrix and with Fluorite at its base.
From the collection of Miguel David Martínez, number 832, whose label we will send to the buyer.

Moscona Mine, El Llano, Solís, Corvera de Asturias, Comarca Avilés, Principality of Asturias (Asturias) Spain (2018)

Specimen size: 11 x 6.4 x 5.4 cm

Main crystal size: 0.8 x 0.6 cm

Former collection of Miguel David Martínez

SV3230NRX

From the prolific Moscona Mine, a sharp Fluorite with very transparent crystals, with Dolomite embellishing the front, and Baryte covering the back.
From the collection of Miguel David Martínez, number 2001, whose label we will send to the buyer.

Moscona Mine, El Llano, Solís, Corvera de Asturias, Comarca Avilés, Principality of Asturias (Asturias) Spain (2001)

Specimen size: 9.5 x 7.5 x 3.8 cm

Main crystal size: 0.9 x 0.8 cm

Former collection of Miguel David Martínez

SV3190NTF

From the San Roque Mine, a locality that is little known outside of Spain but which occasionally yields quite showy specimens. In this case, not so much for the Fluorite but for the 'fencepost'-style Quartz that provides a beautiful contrast.
From the collection of Miguel David Martínez, number 1630, whose label we will send to the buyer.

San Roque Mine, Alumbres, Cartagena, Comarca Campo de Cartagena, Region of Murcia (Murcia) Spain (11/2018)

Specimen size: 6.7 x 5.8 x 3 cm

Former collection of Miguel David Martínez