Correianevesite is a rare phosphate mineral occurring as a secondary phase in granite pegmatites. It is typically found as small, thin, brown bladed crystals or radiating sprays associated with other phosphate minerals in pockets.
Is this correianevesite?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch correianevesite with a known reference. Correianevesite sits at Mohs 3.5, softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Streak: white.
- 3Read the lusterHold the specimen under a strong light. Luster: vitreous.
- 4Match the color rangeCompare against the expected color range: reddish-brown.
- 5Look at form & habitCrystal system: orthorhombic. Typical habit: bladed crystals, radial aggregates.
Often confused with
Correianevesite vs. its common look-alikes, and how to tell them apart in the field.
Often found alongside correianevesite
Minerals reported to co-occur with correianevesite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- FeMn₂(PO₄)₂·3H₂O
- Mohs hardness
- 3.5
- Density
- 3.25 g/cm³
- Colors
- Streak
- White
- Luster
- Vitreous
- Transparency
- Transparent
- Crystal system
- Orthorhombic
- Crystal habit
- Bladed crystals, radial aggregates
- Cleavage
- Poor on {010}
- Rarity
- Rare
- Uses
- Collector
- Host rock
- In cavities in triphylite in a well-zoned, phosphate-rich granite pegmatite
Where rockhounds find correianevesite
Classic worldwide localities
- Palermo No. 1 Mine, USA
- Énio pegmatite, Brazil
Field-hunting tip
Where it forms: In cavities in triphylite in a well-zoned, phosphate-rich granite pegmatite. If you start seeing triphylite, lithiophilite, frondelite in float, you are in the right ground. Typical habit: bladed crystals, radial aggregates. Train your eye for that shape before scanning the outcrop.
Common questions
How do you identify correianevesite?+
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What rocks look like correianevesite?+
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Find correianevesite on the map
RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.
