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RM1319   Pyrite with quartz

Very brilliant specimen formed by numerous polysynthetic growths of octahedral pyrite crystals. The golden color is superior and brilliance, as we said before, is really excellent. With white milky quartz. A fine piece from a not well represented locality.
These mines are located approximately 50 km south of Alnif, near the border with Algeria. This area was already mined in medieval age for the extraction of copper. In the 60s of the last century, French companies expanded shafts and mineral extraction.

Size: 6.8 x 5.2 x 4.5 cm.
Main crystal: 10 x 9 mm.
Found in 2013.
45 €
RM1317   Marcasite on baryte

Bright specimen that consists of parallel aggregates of tabular baryte crystals on which we can observe various groups of marcasite crystals, many isolated, twinned, flattened and with good brightness. Very representative for the species and with an interesting mineral balance.

Size: 5.8 x 5.5 x 3.5 cm.
Main crystal: 15 x 10 mm. marc.
Found in 2013.
40 €
RM1322   Quartz var. smoky-amethyst with orthoclase, epidote and actinolite

Druse formed by a group of quartz var. amethyst-smoky crystals, showing defined faces and edges, from translucent to transparent. One has a small notch in its upper face. They are disposed on a matrix of feldspar, probably orthoclase, with prismatic crystals of green epidote and fibrous actinolite.

Size: 6.5 x 6.0 x 5.5 cm.
50 € 30 €
RM1325   Galena with pyrite, marcasite and quartz

Rich group of galena cube-octahedral crystals, some of them complex, defined faces and edges, and with a better quality than usual for the locality. They are disposed on a matrix covered by small and brilliant quartz crystals. Accompanied by several aggregates of golden twinned marcasite sharp crystals, brilliant, with aggregates pyrite. Very fine specimen.
These mines are located approximately 50 km south of Alnif, near the border with Algeria. This area was already mined in medieval age for the extraction of copper. In the 60s of the last century, French companies expanded shafts and mineral extraction.

Size: 13.5 x 8.5 x 6.0 cm.
Main crystal: 7 x 6 mm. galena
Found in 2013.
45 €
RM1350   Galena with sphalerite, pyrite, marcasite and quartz

Group of aesthetic cube-octahedral galena crystals, defined faces and edges, and with a better quality than usual for the locality. They are disposed on a matrix covered by brilliant quartz crystals. Accompanied by aggregates of honey color sphalerite complex crystals. With pyrite and flattened twinned marcasite.
These mines are located approximately 50 km south of Alnif, near the border with Algeria. This area was already mined in medieval age for the extraction of copper. In the 60s of the last century, French companies expanded shafts and mineral extraction.

Size: 7.4 x 5.0 x 4.5 cm.
Main crystal: 8 x 8 mm.
Found in 2013.
RM1357   Baryte and marcasite

Huge size parallel growth of tabular crystals of barite, very sharp and with very well defined faces and edges. They are translucent and very bright and have flattened crystals of marcasite showing the twin known as "cockscomb".
These mines are located approximately 50 km south of Alnif, near the border with Algeria. This area was already mined in medieval age for the extraction of copper. In the 60s of the last century, French companies expanded shafts and mineral extraction.

Size: 10.7 x 7.3 x 4.5 cm.
Main crystal: 34 x 27 mm.
Found in 2011.
75 € 60 €
RM3553   Baryte with pyrolusite and goethite

Specimens of this mine are unusual in the market. This sample, from an former collection, is one of those pieces that make us appreciate the minerals of the La Gaviota mine. On a matrix of goethite, partially covered with tiny crystals of pyrolusite, are disposed very aerial a rich group of tabular barite crystals. Between translucent to transparent. An opportunity to represent perfectly this mine in our collection.

Size: 12.5 x 8.6 x 5.2 cm.
Main crystal: 25 x 20 mm.
Found in 1990's.
60 €
RM1203   Arsenopyrite with quartz, manganoan calcite and boulangerite
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Size: 8.3 x 6.8 x 5.2 cm.
RM1031   Grossular (var. Hessonite) with quartz

Group of grossular, hessonite variety, one of them bigger. Good orange to brown color, translucent and curved faces and edges.

Size: 6.0 x 5.8 x 4.7 cm.
RM991   Sphalerite with siderite

From a classic Murcian loocality as corta San Valentín comes this specimen formed by a large group of bright sphalerite crystals with tetrahedral and complex shapes, good brightness and partially covered bu lenticular and rhombohedral orange siderite crystals. A very aesthetically striking contrast color.

Size: 7.8 x 6.5 x 3.5 cm.
Main crystal: 10 x 10 mm.
Found in 2013.
45 €
RM974   Baryte

Group of stalactitic aggregates of barite crystals. They are very aerial disposed and formed by bladed crystals with chisel-shaped terminations. With a really good brilliance, some transparence and white color. A notable recent find from this Mediterranean mining area that never stops to surprise us.

Size: 8.8 x 7.0 x 5.3 cm.
Main crystal: 25 x 12 mm. aggreg.
Found in 12/2014.
55 €
RM931   Vanadinite

Specimen with a very good size formed by several groups of vanadinite crystals, with an intense red to brownish red zoning color, translucent, very brilliant and showing a defined prism truncated by pinacoidal faces. On a rocky matrix. Different than usual.

Size: 13.0 x 12.4 x 3.0 cm.
Main crystal: 8 x 6 mm.
55 €
RM640   Calcite with fluorite and Baryte

Curious specimen of calcite from Moscona. Formed by some crystals, one of them predominant, with complex rhombohedrall faces with echeloned growth. Accompanied by tabular barite crystals and on a yellow fluorite matrix.

Size: 8,6 x 7,3 x 4,4 cm.
Main crystal: 28 x 25 mm.
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