Belovite-(La) is a rare phosphate mineral member of the apatite group characterized by its high strontium and lanthanum content. It is typically found in alkaline igneous environments, often appearing as small, sharp, transparent to translucent hexagonal prisms.
Is this belovite-(la)?
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 belovite-(la) with a known reference. Belovite-(La) sits at Mohs ~5, 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: yellow, greenish yellow.
- 5Look at form & habitCrystal system: trigonal. Typical habit: prismatic crystals, tabular.
Often confused with
Belovite-(La) vs. its common look-alikes, and how to tell them apart in the field.
Often found alongside belovite-(la)
Minerals reported to co-occur with belovite-(la). Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- NaLaSr₃(PO₄)₃F
- Mohs hardness
- ~5
- Density
- 4.19 g/cm³
- Colors
- Streak
- White
- Luster
- Vitreous
- Transparency
- Transparent
- Crystal system
- Trigonal
- Crystal habit
- Prismatic crystals, tabular
- Cleavage
- None
- Rarity
- Rare
- Uses
- Collector
- Host rock
- In natrolite veinlets in pegmatites in a differentiated alkalic massif
Where rockhounds find belovite-(la)
Classic worldwide localities
- Found in the Kirov apatite mine, Mt. Kukisvumchorr, and on Mt. Eveslogchorr, Khibiny massif, Kola Peninsula, Russia
Field-hunting tip
Where it forms: In natrolite veinlets in pegmatites in a differentiated alkalic massif. If you start seeing gaidonnayite, gerasimovskite, lamprophyllite in float, you are in the right ground. Typical habit: prismatic crystals, tabular. Train your eye for that shape before scanning the outcrop.








