beauty of natures



                                  Specimen Highlights

Spanish Cubic Pyrite  

Chemical formula: FeS2 (Iron sulfide)

Color: Yellow, golden

Hardness: Fairly hard (6-6.5)

Crystal system: Isometric

Occurrence: Uncommon (found only in one place)

Health risks: None

Wow factors:

- Spanish pyrites form in nearly perfect cubes with smooth, flat, mirror-like faces.

- Pyrite is quite dense due to the iron content.

- Cubes can grow to be quite large.

- Cubes can be popped out of the matrix very cleanly and loose cubes are very    affordable (note that crystals still within the matrix are FAR more valuable)

- Crystals sometimes twin resulting in surreal-looking clusters

Care tips:

- Pyrite contains iron and can rust or develop a dull surface if exposed to liquid. Do not wash with water or any other cleaning or polishing fluid!

- The oils on your hands can also damage pyrite by causing the surface to oxidize. Wear gloves to safely handle crystals or grab specimens by the matrix only.

- Use a bulb blower to blow dust off of specimens and used a dry cleaning cloth to polish crystals.

- Locality of this piece:  Ampliación a Victoria Mine, Spain. Spain is the only place on earth where pyrite forms in these iconic cubes!

- Price range: Loose crystals that are without a matrix are very affordable at a range of $5-15. Larger loose crystals will cost more ($50-100). Crystals still within their natural matrix can be quite expensive. Depending on size of the crystals and how many are on the matrix, you can expect to pay $50-200+!  Please be aware that many specimens that feature cubes in matrix have been “repaired” meaning that the crystals were glued in place often to make them worth more than they are. Examine pieces carefully before purchasing.

Written By: cc-da-wolf