Pyrite

Here's an unusual specimen with sharp, beautiful, silver ARSENOPYRITE crystals from Panasqueira mine.....

Here is a fine specimen of pyrite, formed into a very sharp (and 100% natural) cubic crystal. The ed.....

Who can resist the amazing pyrite cubes from Navajun, with their interlocking cubic crystals that fl.....

This group of 3 penetrating twin cubic crystals is a fine example of Spanish pyrite from the world's.....

Here is a gorgeous cluster of 2 very sharp and undamaged interlocking cubic crystals of pyrite. Thes.....

This specimen is a tight penetrating twin cluster of 2 interlocking pyrite cubes, the larger being 1.....

Here's a beautiful specimen of brassy golden PYRITE (also known as fool's gold ) with shiny crystal .....

You will be amazed by the near perfection of this sharp pyrite cube -  The crystal is as nearly.....

Here is a specimen of pyrite, crystallized as a very sharp (and 100% natural) cubic crystal. The edg.....

Here is a specimen of pyrite, crystallized as a very sharp (and 100% natural) cubic crystal. The edg.....

Isn't it amazing that this pyrite specimen is 100% natural, not man-made?  This group of 3 cube.....

The cubic crystals on this Peruvian pyrite specimen are exceptionally smooth and sharp, with flashin.....

Pyrite from this mine is extremely rare, and seldom seen. Merelani Hills is renowned for the world's.....

This sharp single pyrite crystal is 2.4" from tip-to-tip, and 1.6" along the longest edge. The faces.....

Although Merelani is best known for tanzanite, it also produces fine crystals of several other varie.....

This is a sharp single pyrite crystal that is 2.6" from tip-to-tip, and 1.6" along the longest edge......

This intriguing specimen features a large pyrite cube perched on a chunk of marl matrix. The cubic p.....

This is a brilliant, highly reflective specimen of pyrite, featuring large, sharp, undamaged pyritoh.....

This is a single pyrite crystal that is 2.7" from tip-to-tip, and 1.6" along the edges. The faces ar.....

This single pyrite crystal is 2.7" from tip-to-tip, and 1.6" along the edges. The faces are smooth a.....