Pyrite matrix (Cube) from Spain Navajun in the province of La Rioja.

Pyrite matrix (Cube) from Spain Navajun in the province of La Rioja.

Fantastic package with 50 minerals from Morocco for super low price.

Fantastic package with 50 minerals from Morocco for super low price.

Pyrite matrix (Cube) from Spain Navajun in the province of La Rioja.

Pyrite Crystals from Navajún La Rioja, Spain are famous for their natural perfect cubic shape, mirror like faces and incredible luster.
SKU
8146

"A Natural Wonder of the World" 
Pyrite Crystals from Navajún La Rioja, Spain are famous for their natural perfect cubic shape, mirror like faces and incredible luster. These perfect Pyrite specimens were formed approximately 140 millions years ago and are only found in Navajún.

Why Cubes? We are often asked if our Pyrite Specimens are cut and Polished. The answer is NO. While hard to believe for the first time Pyrite crystals can be a perfect shiny cube.  Pyrite (FeS2) is an iron sulfide that crystallizes in the cubic system. For example there are other minerals that crystallize in the cubic system such as: Salt (NaCl). While Pyrite is a very common mineral throughout the world, it is hard to find perfect Cubes in the size, perfection and luster that Characterizes Pyrite from Navajun. Pyrite from Navajun is a must have for any mineral Collector and a Perfect gift for those hard to impress.

Pyrite or iron pyrites is a mineral with the formula FeS2 (chemical name: iron disulfide). It is an important mineral iron ore and sulfur. It is often well-formed (euhedrische) of crystals in the form of a cube with characteristic striations and with a gold sheen. It is also called mad tinsel or gold (gold of the English fool's) because it sometimes for gold as was. However, the name cat gold is sometimes used incorrectly, this refers to yellow mica or resin. Because pyrite occurs largely can create the illusion of great wealth. However, pyrite is not worth very much (although it can be sold). It is found, together with other sulfur-containing minerals, but also with oxides, in quartz veins in sedimentary rocks in the carbon beds and as a replacement mineral in fossils. Pyrite is a disulfide with sulfur pairs (S2) 2, and Fe2 + ions in an octahedral surrounding t2g6 went into a low spin state. As a result of the fact that both ions have a closed configuration, it is a diamagnetic semiconductor. When the weathering of pyrite occur iron (hydr) oxides, which also releases sulfuric acid. This acid may then enter into reaction with other minerals, and thereby lead to the formation of, for example, gypsum, and aluniet jarosite. An important source of pyrite is the island of Elba. The name pyrite is very old, derived from the ancient Indo-European word pyr (fire, cf. Eg pyrotechnics fireworks art, or the English pyre (pyre) because one could create sparks by pyrite against flint or iron to catch on. Today The day we hear something different under flint (a form of SiO2). Other names that one of pyrite against can get his ferrosulfide, sulfur, iron and less common words ijzerblende and iron pyrites. Pyrite was used to be sold adulterated gold since the gold-like shine . However, the gloss changes when the glossiness flat tilts, with gold the gold shimmer is the same. Also, pyrite angular, with sharp edges and hard, while gold is round and soft.

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