Cobble Creek: Pyrite Cubes on Matrix from Spain
This Pyrite cube on matrix is from the world famous locale Ampliación Mine Victoria,
Navajún, La Rioja, Spain. Most of the times when these pieces are extracted, the actual pyrite cubes will break free from the host during this process, and therefore this piece has been stabilized. During the stabilization process, the cubes will be mounted back onto the host to be enjoyed in your collection for a lifetime. Nice display piece for any collection.
Length: 49mm / 1.9" inches
Width: 30 mm / 1.2" inches
Height: 27 mm/ 1.1" inches
Weight: 42 grams / 1.48 ounces
Country of Origin: Ampliación Mine Victoria,
Navajún, La Rioja, Spain
More information on the world famous locale:
The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron(II) disulfide). Pyrite is considered the most common of the sulfide minerals.
Pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool's gold. The color has also led to the nicknames brass, brazzle, and Brazil, primarily used to refer to pyrite found in coal.
The name pyrite is derived from the Greek πυρίτης (pyritēs), "of fire" or "in fire", in turn from πύρ (pyr), "fire". In ancient Roman times, this name was applied to several types of stone that would create sparks when struck against steel; Pliny the Elder described one of them as being brassy, almost certainly a reference to what we now call pyrite.
By Georgius Agricola's time, c. 1550, the term had become a generic term for all of the sulfide minerals.
Pyrite under normal and polarized light
Pyrite is usually found associated with other sulfides or oxides in quartz veins, sedimentary rock, and metamorphic rock, as well as in coal beds and as a replacement mineral in fossils, but has also been identified in the sclerites of scaly-foot gastropods. Despite being nicknamed fool's gold, pyrite is sometimes found in association with small quantities of gold. Gold and arsenic occur as a coupled substitution in the pyrite structure. In the Carlin–type gold deposits, arsenian pyrite contains up to 0.37% gold by weight.
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