- Home About RM Minerals
- Virtual Photo Museum Blog RM
- Microscopy and instruments How to Buy Disclaimer
Copyright 2010-2025
rosellminerals.portalmineiro.net
Dalnegorsk fluorite specimens are very difficult to photograph. This is the case of this piece formed by groups of cubic crystals, transparent, colorless, defined, with the edges of the cube beveled by the dodecahedron and inclusions of very curious shapes. It is accompanied by quartz crystals dotted with green chlorite. A very curious piece ... 6uv4j
Excellent specimen of galena, with very good luster. It shows forms of the cube and the octahedron, twinned. It has very aesthetic skeletal and ochy growths. The mine produced specimens of this quality a few years ago and now it is increasingly difficult to find them.
Numerous groups of prismatic willemite crystals in the cavities of this matrix with galena, siderite, quartz and goethite. The crystals show hexagonal shapes truncated by pinacoidal faces, they appear isolated or forming aesthetic stars. Some of them are dotted with rhombohedral crystals, between honey-colored to greenish, of siderite. Fluorescent under short wave UV light. A good size specimen of this classic Occitan Pb-Zn mine.
These baryte crystals are very different from the usual ones that we can see coming from this Moroccan locality and even from other deposits famous for baryte. These are prisms of different orders, the predominant third order, truncated by the second order. We observe that a white geometric growth has formed and only affects certain faces of the rhombic prisms. This zoning is unusual for the species. The crystals are transparent and brilliant.
These baryte crystals are very different from the usual ones that we can see coming from this Moroccan locality and even from other deposits famous for baryte. These are prisms of different orders, the predominant third order, truncated by the second order. We observe that a white geometric growth has formed and only affects certain faces of the rhombic prisms. This zoning is unusual for the species. The crystals are transparent and brilliant.
Very aesthetic aggregates of epidote crystals forming beams, with brilliance, defined and with this classic green color. They are disposed on the matrix with quartz crystals, forming very interesting concentric growths.
Very aesthetic aggregates of epidote crystals forming beams, with brilliance, defined and with a classic green color. They are arranged in groups and in an isolated way on the matrix with quartz crystals, on which they stand out.
Very aesthetic aggregates of epidote crystals forming beams, with brilliance, defined and with this classic green color. They are disposed on the matrix with quartz crystals, forming very interesting concentric growths.
These baryte crystals are very different from the usual ones that we can see coming from this Moroccan locality and even from other deposits famous for baryte. These are prisms of different orders, the predominant third order, truncated by the second order. We observe that a white geometric growth has formed and only affects certain faces of the rhombic prisms. This zoning is unusual for the species. The crystals are transparent and brilliant.
These baryte crystals are very different from the usual ones that we can see coming from this Moroccan locality and even from other deposits famous for baryte. These are prisms of different orders, the predominant third order, truncated by the second order. We observe that a white geometric growth has formed and only affects certain faces of the rhombic prisms. This zoning is unusual for the species. The crystals are transparent and brilliant.
Very rich chabazite-Ca specimen, with defined and brilliant crystals, those cover one side of the matrix, while on the other we can see numerous heulandite crystals with groups of chabazite-Ca in the upper part. This specimen belongs from the Faroe Islands (Færøerne, which means "islands of lambs"), an autonomous territory of the Kingdom of Denmark, made up of a small archipelago in the North Atlantic, between the United Kingdom, Norway and Iceland. It is not easy to find zeolites from this area.
Group of cubic to prismatic fluorite crystals, translucent, with a color between violet to purple depending on the incident light. A good size specimen with a matrix on the back. From this classic Moroccan mine.
Divergent aggregates of good sized acicular to prismatic goethite crystals. They are accompanied by black globular aggregates that, once analyzed, have turned out to be a first generation of goethite. It is accompanied by small aggregates of green conichalcite crusts, also analyzed. The specimen shows a fissure that has been consolidated, without affecting its stability and aesthetics.
These specimens show us a chalcopyrite matrix partially transformed into irisdecent covellite-bornite and goethite. In the cavities there are numerous aggregates of prismatic malachite crystals, of an intense green, with transparency and brilliance. If we observe them with the magnifying glass we can see that they are faceted crystals. A novelty in the Bleida mines area.
These specimens show us a chalcopyrite matrix partially transformed into irisdecent covellite-bornite and goethite. In the cavities there are numerous aggregates of prismatic malachite crystals, of an intense green, with transparency and brilliance. If we observe them with the magnifying glass we can see that they are faceted crystals. A novelty in the Bleida mines area.
These specimens show us a chalcopyrite matrix partially transformed into covellite-bornite and goethite. In the cavities there are numerous aggregates of prismatic malachite crystals, of an intense green, with transparency and brilliance. If we observe them with the magnifying glass we can see that they are faceted crystals. A novelty in the Bleida mines area.
A novelty from the Bleida mines. Groups of malachite crystals, prismatic to needle like, forming velvety aggregates with intense brilliance and color. They are disposed in the cavities of a quartz and dolomite matrix, with cuprite.
From a classic German locality: Alberoda bei Aue. This locality is known by its silver sulphosalts, but not well represented in collections. This good sized specimen is very rich in brilliant stephanite crystals and some reddish pyrargyrite.
Group of prase quartz crystals, with good luster, very well defined and contrasting on a matrix covered by andradite crystals. A very aesthetic piece.
Doubly terminated crystal of prase quartz, with a very good size. It shows an intense green color and polycrystalline growths on the faces of the prism. Very aerial and esthetic specimen on a matrix rich in small andradite crystals and green hedenbergite needles. A very aesthetic piece.
Doubly terminated smoky quartz crystal, very well defined, brilliant and transparent. It is disposed on a matrix with adularia crystals.
These pyrite specimens from this Bulgarian mining area are very aesthetic, highlighting the complex forms and penetration twins they present. Good luster and color. They are accompanied by crystals of quartz, sphalerite and brilliant chalcopyrite on the matrix. It comes from a mining area known as the Septemvri mine, which includes the following deposits: Sharenka, Baram, Mogilata, Osikovo and Pechinsko.
These pyrite specimens from this Bulgarian mining area are very aesthetic, highlighting the complex forms. Good luster and color. They are accompanied by crystals of quartz, sphalerite and brilliant chalcopyrite on the matrix. It comes from a mining area known as the Septemvri mine, which includes the following deposits: Sharenka, Baram, Mogilata, Osikovo and Pechinsko.
These pyrite specimens from this Bulgarian mining area are very aesthetic, highlighting the complex forms and penetration twins they present. Good luster and color. They are accompanied by crystals of quartz, sphalerite and brilliant chalcopyrite on the matrix. It comes from a mining area known as the Septemvri mine, which includes the following deposits: Sharenka, Baram, Mogilata, Osikovo and Pechinsko.