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 3-4, softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Correianevesite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Correianevesite typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: yellow-brown, 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
- Mn²⁺Fe³⁺₂(PO₄)₂(OH)₂·2H₂O
- Mohs hardness
- 3-4
- Density
- 3.37 g/cm³
- Colors
- Streak
- White
- Luster
- Vitreous
- Transparency
- Translucent
- Crystal system
- Orthorhombic
- Crystal habit
- Bladed Crystals, Radial Aggregates
- Cleavage
- None
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Granite Pegmatites
- Typical price
- $50-300 per specimen
Where rockhounds find correianevesite
Classic worldwide localities
- Palermo No. 1 Mine, USA
- Énio pegmatite, Brazil
Field-hunting tip
Look in granite pegmatites country, the host setting where correianevesite typically forms. If you start seeing triphylite, lithiophilite, hureaulite in float, you are in the right ground. Field specimens usually show a bladed crystals, radial aggregates habit, so train your eye for that shape before scanning the outcrop.





