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, so 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, 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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