Switzerite is a rare manganese phosphate mineral known for its delicate, platy habit and pearly luster. It is typically found as a secondary mineral in phosphate-rich zones of granitic pegmatites, often as an alteration product of triphylite.
Is this switzerite?
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 switzerite with a known reference. Switzerite sits at Mohs 2 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Switzerite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Switzerite typically shows a pearly luster.
- 4Match the color rangeCompare against the expected color range: yellow, brown, orange-brown.
- 5Look at form & habitCrystal system: monoclinic. Typical habit: platy crystals, micaceous aggregates.
Often confused with
Switzerite vs. its common look-alikes — and how to tell them apart in the field.
How to tell apart: Streak differs — Switzerite leaves white, Vivianite leaves white to light blue; luster reads pearly on Switzerite and vitreous on Vivianite.
How to tell apart: Phosphophyllite is the harder of the two (Mohs 3-3.5 vs. 2); luster reads pearly on Switzerite and vitreous on Phosphophyllite.
Often found alongside switzerite
Minerals reported to co-occur with switzerite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Mn₃(PO₄)₂(H₂O)₇
- Mohs hardness
- 2
- Density
- 2.44 g/cm³
- Colors
- Streak
- White
- Luster
- Pearly
- Transparency
- Transparent
- Crystal system
- Monoclinic
- Crystal habit
- Platy Crystals, Micaceous Aggregates
- Cleavage
- Perfect Basal
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Granite Pegmatites
- Typical price
- $50-300 per specimen
Where rockhounds find switzerite
Classic worldwide localities
- Foote Mine, North Carolina, USA
- Palermo Mine, New Hampshire, USA
Field-hunting tip
Look in granite pegmatites country — that is the host setting where switzerite typically forms. If you start seeing triphylite, hureaulite, dickinsonite in float, you are in the right ground. Field specimens usually show a platy crystals, micaceous aggregates habit, so train your eye for that shape before scanning the outcrop.
Common questions
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Find switzerite on the map
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