Prophecy Stone
A variety of Limonite
What is Prophecy Stone?
The prophecy Stone is a trading name for an unusual material that's a limonite (originally stated to be hematite) pseudomorph after marcasite or pyrite. In this case, the mineral itself has been replaced by limonite, but the limonite pseudomorphs still preserve the original shape of the marcasite or pyrite crystals.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Prophecy Stone before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Where to Find Prophecy Stone
Prophecy Stone is a variety of Limonite. RockHoundR, the free-to-download rockhounding map from the Ruby Glint team, shows where collectors find limonite in the US, with land-access notes for BLM land and national forests. Collecting is banned in national parks.
See where to find limoniteAlways check the local rules and get the landowner's permission before you collect.
Key Characteristics
Composition of Prophecy Stone
Goethite, Lepidocrocite, Hematite
Quick Facts
Physical Properties
- Color
- Gray, black, brown, red
- Hardness (Mohs)
- 4 - 5.5
- Rock tumbling
- Not recommended
- Density
- 3.6 - 4.3 g/cm³
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Prophecy Stone FAQs
How do I identify Prophecy Stone?
Prophecy Stone can be identified by its hardness of 4 - 5.5 on the Mohs scale, Gray color. Look for these key characteristics when examining specimens.
What color is Prophecy Stone?
Prophecy Stone typically appears in Gray, black, brown, red. Color can vary depending on impurities and formation conditions.
How hard is Prophecy Stone?
Prophecy Stone has a hardness of 4 - 5.5 on the Mohs scale. This gives it moderate hardness.
What is the composition of prophecy stone of Prophecy Stone?
Goethite, Lepidocrocite, Hematite