$53.11
Polycrystalline pyrite formation, around a core, radially grown.
Cavity and fissure formation, e.g. in coal deposits – approx. 250 million years old.
The more sulphur present, the greyer the color.
Pyrite suns with a beautiful golden sheen are usually washed with acids.
Location: Sparta - Illinois - USA
Weight: 185 g Dim.: 11 x 8.5 cm
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| Weight | .185 kg |
|---|---|
| Dimensions | 11 × 8.5 × 1 cm |
