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. Streak: white.
- 3Read the lusterHold the specimen under a strong light. Luster: vitreous.
- 4Match the color rangeCompare against the expected color range: green, blue, violet.
- 5Look at form & habitCrystal system: monoclinic. 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
- NaLi₂(Mg₂Al₂Li)Si₈O₂₂F₂
- Mohs hardness
- 7
- Density
- 3.0-3.1 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Translucent
- Crystal system
- Monoclinic
- Crystal habit
- Prismatic crystals
- Cleavage
- Indistinct
- Rarity
- Rare
- Uses
- Collector
- Host rock
- granite pegmatites
Where rockhounds find fluoro-pedrizite
Classic worldwide localities
- Italy
- Afghanistan
- Brazil
Field-hunting tip
Where it forms: granite pegmatites. If you start seeing quartz, albite, lepidolite in float, you are in the right ground. Typical habit: prismatic crystals. Train your eye for that shape before scanning the outcrop.
Common questions
How do you identify fluoro-pedrizite?+
Where is fluoro-pedrizite found?+
What rocks look like fluoro-pedrizite?+
What minerals are found with fluoro-pedrizite?+
What kind of rock does fluoro-pedrizite form in?+
What is fluoro-pedrizite used for?+
Find fluoro-pedrizite on the map
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