3.2" Twin GOLDEN PYRITE 2 Cubic Crystals to 2.1"-Spain

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2-CUBE CLUSTER OF LARGE
GOLDEN PYRITE
PENETRATING TWIN CRYSTALS

~ LOGRONO, SPAIN ~

SIZE:
3.2" x 2.7" x 2.2"
SHIPPING WEIGHT:
1.9 POUNDS

BRIGHT
CRYSTAL FACES!

LOVELY
BRASSY GOLDEN COLOR!

AMAZING CUBIC CRYSTALS!

AWESOME SPIRITUAL TOOL!

SHIPS WITHIN
24 HOURS!

Gorgeous brassy golden yellow color

Large lustrous pyrite cubes to 2.1"

for enlarged view

Large 3.2" size

Great specimen which displays well
f rom all angles

DESCRIPTION

Here's a beautiful specimen of PENETRATING TWIN GOLDEN PYRITE (also known as FOOL'S GOLD ) featuring shiny BRIGHT CRYSTAL FACES . This specimen comes from NAVAJUN, LOGRONO, SPAIN . The specimen is made up of NATURAL CUBES - formed by Mother Nature in a fascinating irregular cubic shape. The most common question people ask about these is, "You mean they came out of the ground just like that?" Yup! I found this fabulous specimen out in TUCSON in February in the room of my friend Nestor Lopez. He operates the mine in Logrono, and brings his year's finds to Tucson to sell. N ote: Like

Pyrite is the classic "Fool's Gold". There are other shiny brassy yellow minerals, but pyrite is by far the most common and the most often mistaken for gold. Whether it is the golden look or something else, pyrite is a favorite among rock collectors. It can have a beautiful luster and interesting crystals. It is so common in the earth's crust that it is found in almost every possible environment, hence it has a vast number of forms and varieties.
Bravoite is the name given to a nickel-rich iron sulfide. It is closely related to pyrite but contains up to 20% nickel. Some mineral books treat it as a variety of pyrite.

Pyrite is a polymorph of marcasite, which means that it has the same chemistry, FeS2, as marcasite; but a different structure and therefore different symmetry and crystal shapes. Pyrite is difficult to distinguish from marcasite when a lack of clear indicators exists.

Pyrite's structure is analogous to galena's structure with a formula of PbS. Galena though has a higher symmetry. The difference between the two structures is that the single sulfur of galena is replaced by a pair of sulfurs in pyrite. The sulfur pair are covalently bonded together in essentially an elemental bond. This pair disrupts the four fold symmetry that a single atom of sulfur would have preserved and thus gives pyrite a lower symmetry than galena.

Although pyrite is common and contains a high percentage of iron, it has never been used as a significant source of iron. Iron oxides such as hematite and magnetite, are the primary iron ores. Pyrite is not as ecomonical as these ores possibly due to their tendency to form larger concentrations of more easily mined material. Pyrite would be a potential source of iron if these ores should become scarce.

Pyrite has been mined for its sulfur content though. During WWII, sulfur was in demand as a strategic chemical and North American native sulfur mines were drying up. A sulfide deposit near Ducktown Tenn. was found to be able to mine pyrite and other sulfides such as pyrrhotite and pentlandite and produce the needed sulfur as well as iron and other metals. Th...
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