Deveroite-(Ce) is a rare rare-earth oxalate mineral found in hydrothermal environments. Collectors typically encounter it as small, fragile platy crystals associated with other REE-bearing minerals in alpine-type veins.

Hardness
2-2.5
Mohs
Luster
Vitreous
Streak
White
Transparency
Transparent

Is this deveroite-(ce)?

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 deveroite-(ce) with a known reference. Deveroite-(Ce) sits at Mohs 2-2.5, softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Streak: white.
  • 3
    Read the luster
    Hold the specimen under a strong light. Luster: vitreous.
  • 4
    Match the color range
    Compare against the expected color range: colorless.
  • 5
    Look at form & habit
    Crystal system: monoclinic. Typical habit: platy crystals, granular aggregates.

Often confused with

Deveroite-(Ce) vs. its common look-alikes, and how to tell them apart in the field.

Often found alongside deveroite-(ce)

Minerals reported to co-occur with deveroite-(ce). Spotting these in float or country rock is a strong cue you are in the right ground.

All properties

Chemical formula
Ce₂(C₂O₄)₃·10H₂O
Mohs hardness
2-2.5
Density
2.352 g/cm³
Colors
Streak
White
Luster
Vitreous
Transparency
Transparent
Crystal system
Monoclinic
Crystal habit
Platy crystals, granular aggregates
Cleavage
Perfect on {010}
Rarity
Rare
Uses
Collector
Host rock
Precipitated from meteoric waters enriched with oxalic acid likely derived from incomplete oxidation of decaying plant remains (in this case crusty lichens)

Where rockhounds find deveroite-(ce)

Classic worldwide localities

  • Mount Cervandone, Devero Valley, Western-Central Alps, Italy

Field-hunting tip

Where it forms: Precipitated from meteoric waters enriched with oxalic acid likely derived from incomplete oxidation of decaying plant remains (in this case crusty lichens). If you start seeing cervandonite-, agardite-, asbecasite in float, you are in the right ground. Typical habit: platy crystals, granular aggregates. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify deveroite-(ce)?+
Mohs hardness is 2-2.5. Luster: vitreous. The streak is white. Common colors include colorless.
Where is deveroite-(ce) found?+
Notable localities include Mount Cervandone, Devero Valley, Western-Central Alps, Italy.
What rocks look like deveroite-(ce)?+
Deveroite-(Ce) is most often confused with Whewellite, Weddellite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with deveroite-(ce)?+
Deveroite-(Ce) commonly co-occurs with Cervandonite-, Agardite-, Asbecasite, Cafarsite, K-feldspar, Muscovite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does deveroite-(ce) form in?+
Where it forms: Precipitated from meteoric waters enriched with oxalic acid likely derived from incomplete oxidation of decaying plant remains (in this case crusty lichens). Working float back to the host body is the standard way to chase a fresh occurrence.
What is deveroite-(ce) used for?+
Deveroite-(Ce) is used in collector.

Find deveroite-(ce) on the map

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