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RM1376   Hübnerite with quartz

Very aesthetic divergent group of hübnerite crystals showing a marked prismatic habit, with good brightness, intense color, with very very visible reddish transparencies. They are disposed on a hyaline quartz matrix. A selected specimen.

Size: 9.5 x 6.5 x 2.7 cm.
Main crystal: 19 x 3 mm.
Found in 2016.
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RM1265   Japan law quartz twin
SiO₂
  -  4. Óxidos e hidróxidos

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them showing the Japan-law twin, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 9.5 x 5.6 x 4.9 cm.
Main crystal: 12 x 10 mm.
Found in 2015.
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RM1264   Japan law quartz twin
SiO₂
  -  4. Óxidos e hidróxidos

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them, one with a good size, showing the Japan-law twin, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 9.3 x 4.2 x 3.6 cm.
Main crystal: 23 x 19 mm.
Found in 2015.
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RM1266   Japan law quartz twin
SiO₂
  -  4. Óxidos e hidróxidos

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them showing the Japan-law twin, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 7.3 x 4.8 x 4.5 cm.
Main crystal: 14 x 12 mm.
Found in 2015.
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RM1206   Seligmannite with sphalerite, galena, tetrahedrite, quartz and Orpiment

Rich specimen formed by complex sphalerite and galena crystals partially covered by small but brilliant seligmannite associated with tetrahedrite, orpiment and quartz crystals. With pyrite and chalcopyrite. You can see under magnification very aesthetic orpiment-seligmannite aggregates. A very nice combination.

Size: 8.7 x 7.3 x 3.0 cm.
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RM1261   Japan law quartz twin
SiO₂
  -  4. Óxidos e hidróxidos

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Two of them showing the Japan-law twin, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 5.0 x 4.5 x 3.2 cm.
Main crystal: 18 x 15 mm
Found in 2015.
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RM1263   Japan law quartz twin
SiO₂
  -  4. Óxidos e hidróxidos

Druse of brilliant hyaline quartz crystals, with transparence and well-developed prism. Some of them showing the Japan-law twin. Well defined, flattened, transparent to translucent. From a classic Peruvian locality which was inaccurated located in Pasto Bueno district, Pallasca province.

Size: 6.8 x 3.8 x 3.3 cm.
Main crystal: 13 x 9 mm. (macla/twin)
Found in 2015.
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RM1234   Rhodochrosite

Druse formed by rhombohedral crystals of very well defined faces and edges and excellent, very intense pink color. Some of the crystals are partially covered by small quartz crystals.

Size: 5.8 x 4.4 x 2.8 cm.
Main crystal: 7 x 6 mm.
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RM1141   Fluorite with quartz

A very aesthetic fluorite crystal, greenish to bluish tone with zoning, transparent and brilliant. It shows cube faces modified by the trapezohedron. With small pyrite crystals. Very aerial disposed on a brilliant and defined hyaline quartz crystal.

Size: 8.7 x 4.8 x 3.2 cm.
Main crystal: 10 x 10 mm.
Found in 03/2015.
Fluorescent under long wave UV
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RM1143   Fluorite with quartz

A rich group of fluorite crystals, greenish to bluish tone, transparent and brilliant. They show the cube faces modified by the trapezohedron. With small pyrite crystals. Very aesthetically disposed on a brilliant and defined hyaline quartz crystal.

Size: 5.8 x 3.0 x 3.0 cm.
Main crystal: 12 x 12 mm.
Found in 03/2015.
Fluorescent under long wave UV
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RM1162   Epidote

A very aesthetic group of deep green crystals of epidote. Fan-shaped thick prismatic crystals with well defined terminal faces. Just a very few of the terminations are incomplete. Good brilliance and very aerial.

Size: 5.2 x 2.9 x 2.6 cm.
Found in 05/2015.
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RM1145   Epidote with quartz

A very aesthetic group of deep green crystals of epidote. Fan-shaped thick prismatic crystals with well defined terminal faces. Just a very few of the terminations are incomplete. Good brilliance and very aerial. Accompanied by a defined quartz crystal.

Size: 4.5 x 3.8 x 2.3 cm.
Found in 05/2015.
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RM1148   Epidote

A very aesthetic group of deep green crystals of epidote. Fan-shaped thick prismatic crystals with well defined terminal faces. Just a very few of the terminations are incomplete. Good brilliance and very aerial.

Size: 5.1 x 4.0 x 2.7 cm.
Found in 05/2015.
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RM871   Orpiment with realgar

Brilliant specimen formed by globular aggregates of orpiment crystals, with good orange-yellow color. They are accompanied by brilliant acicular crystals of realgar with deep red color, transparent and defined. It is accompanied by barite crystals, pyrite and pyrrhotite. A different and quality specimen for this classic Peruvian mine.

Size: 8.8 x 5.8 x 5.2 cm.
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RM1120   Malachite with quartz and chrysocolla

A very nice specimen with an intense green globular aggregate of malachite partially covered with quartz, perfectly disposed on a matrix of brilliant quartz crystals and chrysocolla. Excellent brilliance and good aesthetics.

Size: 9.3 x 8.0 x 6.0 cm.
Main crystal: 38 x 20 mm aggr.
Found in 2014.
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RM1119   Clinoatacamite with gypsum, Chrysocolla, Malachite and quartz
Cu2Cl(OH)3

Good sized specimen that shows large groups of clinoatacamite crystals with pseudorhombohedral shape, with intense green color, brilliance and transparence. They are disposed as isolated individuals those stand on a matrix of small but brilliant quartz crystals, with blue tones of the chrysocolla, green for the malachite and with gypsum. A remarkable and definitive piece from this Peruvian mine.

Size: 9.8 x 7.2 x 3.6 cm.
Main crystal: 2 x 1.5 mm.
Found in 2014.
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RM1117   Clinoatacamite with atacamite, Malachite and quartz
Cu2Cl(OH)3

In this specimen we can find two of the most interesting species of this Peruvian mine: clinoatacamite and atacamite. The first one is presented as pseudorhombohedral good sixed crystals, with an intense green color and translucent. Well defined faces and edges and isolated, allowing to observe them perfectly. The atacamite is presented as a tabular prismatic crystal, also with faces and sharp edges and bright green color. Matrix is covered by brilliant quartz crystals which transparence allow us to see green tones of the malachite.

Size: 6.7 x 5.8 x 4.7 cm.
Main crystal: 3.5 x 3 mm.
Found in 2014.
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RM1126   Chrysocolla with quartz
Cu₂-xAlx(H₂-xSi₂O₅)(OH)₄ · nH₂O, x<1
  -  9. Silicatos

This good size specimen is covered by botryoidal aggregates of chrysocolla, showing an intense blue turquoise, with greenish reflections and excellent brightness. On the crisocola we can observe small crystals of hyaline quartz, some doubly terminated, those give to the specimen a particular aesthetics. In Perú they named these samples as Blue Andean Opal.

Size: 8.3 x 6.2 x 4.3 cm.
Found in 2015.
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RM1045   Siderite with chalcopyrite

Aesthetic specimen of chalcopyrite, very brilliant, with defined but complex crystals, on which a well developed rhombohedral siderite have grown, interpenetrating and showing rough faces. They show a uniform honey color. These specimens on matrix are rarely seen in the market and stand out for their beauty and mineralogical interest.

Size: 8.5 x 6.8 x 3.0 cm.
Main crystal: 18 x 16 mm.
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RM1040   Siderite with chalcopyrite

Aesthetic specimen of chalcopyrite, very brilliant, with defined but complex crystals, on which a well developed rhombohedral siderite have grown, interpenetrating and showing rough faces. They show a uniform honey color. These specimens on matrix are rarely seen in the market and stand out for their beauty and mineralogical interest.

Size: 8.4 x 6.8 x 4.0 cm.
Main crystal: 18 x 14 mm.
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RM1076   Orpiment with baryte and Realgar

Brilliant, transparent to translucent, tabular baryte crystals on edge are aesthetically and partially covered by colorful, rich orange color, orpiment botryoids from this classic Peruvian mine. With a few gemmy, blood-red realgar prisms.

Size: 8.0 x 5.4 x 3.3 cm.
Found in 2010.
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RM1029   Coquimbite with krausite, metavoltine and halotrichite
AlFe3(SO4)6(H2O)12·6H2O

Only a handful of localities those offer us this quality coquimbite crystals. In this specimen we can enjoy a hexagonal shape crystal of this rare iron and aluminium sulfate showing an intense violet color under fluorescent light or LED type. It is accompanied by numerous yellow metavoltine crystals, along with fibrous halotrichite. Note that under the magnifying glass we can navigate in a world of brilliant crystals, some of which of krausite species (yellowish to grey transparent). We left this identification pleasure to the collector. Regarding its environmental stability, this sample has been stored during more than five years without further alteration.

Size: 5.8 x 4.7 x 2.5 cm.
Main crystal: 13 x 12 mm.
Found in 03/2010.
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RM1021   Rhodochrosite

A huge size rhodochrosite crystal with an intense red-pink color and well defined scalenohedral forms. Good color and transparence. On a solid rocky matrix with quartz.

Size: 6.5 x 4.8 x 2.7 cm.
Main crystal: 13 x 10 mm.
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RM1025   Krausite, coquimbite, halotrichite and Magnesiocopiapite

This specimen shows a very well developed Coquimbite crystals, with an intense violet color. Matrix is formed by white fibrous halotrichite with some orange to yellow Mg-copiapite. Embeded in the halotrichite matrix some small doubly terminated krausite crystals. A complete specimen...

Size: 4.5 x 3.5 x 3.3 cm.
Main crystal: 25 x 25 mm.
Found in 03/2013.
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RM1000   Galena with quartz and pyrite

Very interesting galena crystal, remarkable for its crystallography. It presents the cube and octahedron faces with a very balanced proportion. Brilliant, well disposed on a matrix with quartz crystals with an elongated prism an some brilliant pyritohedrons. A Peruvian aesthetic especimen.

Size: 7.0 x 4.6 x 3.5 cm.
Main crystal: 18 x 16 mm.
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