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Pyrite Cubes

  • Pyrite in Matrix
    Item #: PYR-125
  • ca. 1 cm cube in a 2 x 3 cm matrix, 35 g
  • - +
Cubic specimens of FeS2, formed over 100 million years ago by sulfur reacting with iron.

Description

Iron Pyrite is commonly called "fool's gold" because it has a warm yellow color and glitters and sparkles like gold. Formed over 100 million years ago by sulfur reacting with iron, these cubic specimens of FeS2 are still being found in the sedimentary limestone and sandstone of the Navajan region of Spain.

Common tests to distinguish iron pyrite from gold:
• Gold does not form a cubic crystal
• Gold is very soft and will bend or break when stabbed with a straight pin; the much harder pyrite will not.
• Gold is not attracted to a magnet; pyrite is.
• Gold is much heavier than pyrite.
• Gold will flatten when hit with a hammer, while pyrite will shatter.

Pyrite in Matrix
One or more cubes in sandstone, ca. 1 cm cube in a 2 x 3 cm matrix, 35 g.
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Reviews

3 reviews
Pyrite in a matrix
Review star icon Review star icon Review star icon Review star icon Review star icon Feb 3, 2015
I am not sure whether this product is natural. But it presents very well. Mine arrived damaged but was replaced immediately Kudos to customer service.
JD
Owner Response: Though it seems too perfect to actually come from nature, but we assure you, it is all natural!

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perfect cubes
Review star icon Review star icon Review star icon Review star icon Review star icon Feb 3, 2015
These are near perfect pyrite cubes. Some imperfections show the type of ore it is from.
JD

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Nice sample!
Review star icon Review star icon Review star icon Review star icon Review star icon Oct 25, 2012
Inexpensive little sample to demonstrate crystal structure.
Nancy Krajcar

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