Fluoro-pedrizite is a very rare member of the tourmaline group characterized by its lithium-rich composition and fluorine dominance. It typically occurs as elongated prismatic crystals within highly fractionated granitic pegmatites. Collectors look for its distinctive coloration and often require chemical analysis to distinguish it from other complex lithium tourmalines.
Is this fluoro-pedrizite?
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 fluoro-pedrizite with a known reference. Fluoro-pedrizite sits at Mohs 7 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Fluoro-pedrizite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Fluoro-pedrizite typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: green, blue, violet.
- 5Look at form & habitCrystal system: trigonal. Typical habit: prismatic crystals.
Often confused with
Fluoro-pedrizite vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside fluoro-pedrizite
Minerals reported to co-occur with fluoro-pedrizite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- NaLi₂Al₆Si₆O₁₈(BO₃)₃(OH)₃F
- Mohs hardness
- 7
- Density
- 3.0-3.1 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Translucent
- Crystal system
- Trigonal
- Crystal habit
- Prismatic Crystals
- Cleavage
- Indistinct
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Granite Pegmatites
- Typical price
- $50-500 thumbnail
Where rockhounds find fluoro-pedrizite
Classic worldwide localities
- Italy
- Afghanistan
- Brazil
Field-hunting tip
Look in granite pegmatites country — that is the host setting where fluoro-pedrizite typically forms. If you start seeing quartz, albite, lepidolite in float, you are in the right ground. Field specimens usually show a prismatic crystals habit, so train your eye for that shape before scanning the outcrop.
Common questions
How do you identify fluoro-pedrizite?+
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What rocks look like fluoro-pedrizite?+
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Find fluoro-pedrizite on the map
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