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.

Hardness

3-4

Mohs

Luster

Vitreous

Streak

White

Transparency

Translucent

mineralrareVivianite Group family

Correianevesite

Hardness: 3-4
Luster: Vitreous
Streak: White
Transparency: Translucent

Is this correianevesite?

5-step field check

Run through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.

1
Test the hardness
Try to scratch correianevesite with a known reference. Correianevesite sits at Mohs 3-4 — softer than the next harder reference, harder than the previous one.
2
Check the streak
Drag the specimen across an unglazed porcelain plate. Correianevesite leaves a white streak.
3
Read the luster
Hold the specimen under a strong light. Correianevesite typically shows a vitreous luster.
4
Match the color range
Compare against the expected color range: yellow-brown, brown.
5
Look at form & habit
Crystal 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.

mineral

Vivianite

Mohs 1.5-2

How to tell apart: Correianevesite is noticeably harder (Mohs 3-4 vs. 1.5-2); streak differs — Correianevesite leaves white, Vivianite leaves white to light blue.

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: Yellow-brown Brown
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 — that is 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.

Common questions

How do you identify correianevesite?+

Mohs hardness is 3-4. It typically shows a vitreous luster. The streak is white. Common colors include yellow-brown, brown.

Where is correianevesite found?+

Notable localities include Palermo No. 1 Mine, USA; Énio pegmatite, Brazil.

How much is correianevesite worth?+

Typical asking prices fall in the range of $50-300 per specimen. Quality, size, and provenance can move individual specimens well outside that range.

What rocks look like correianevesite?+

Correianevesite is most often confused with Vivianite, Strengite. A quick hardness test and a streak check separate the look-alikes faster than color alone.

What minerals are found with correianevesite?+

Correianevesite commonly co-occurs with Triphylite, Lithiophilite, Hureaulite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does correianevesite form in?+

Correianevesite typically forms in granite pegmatites. Working float back to the host body is the standard way to chase a fresh occurrence.

What is correianevesite used for?+

Correianevesite is used in collector.

Find correianevesite on the map

RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.