Anapaite is a secondary phosphate mineral typically found in sedimentary iron deposits where it forms beautiful, radiating clusters of pale green tabular crystals. It is most famous for its occurrence in the Taman Peninsula of Russia, where it occurs in concretions within fossiliferous beds.
Is this anapaite?
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 anapaite with a known reference. Anapaite sits at Mohs 3.5 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Anapaite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Anapaite typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: pale green, yellowish-green, white, colorless.
- 5Look at form & habitCrystal system: triclinic. Typical habit: tabular crystals, rosettes, radiating clusters.
Often confused with
Anapaite vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside anapaite
Minerals reported to co-occur with anapaite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Ca₂Fe²⁺(PO₄)₂·4H₂O
- Mohs hardness
- 3.5
- Density
- 2.7-2.8 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Transparent
- Crystal system
- Triclinic
- Crystal habit
- Tabular Crystals, Rosettes, Radiating Clusters
- Cleavage
- Perfect On {010}
- Rarity
- Uncommon
- Uses
- Collector, Mineral Specimen
- Host rock
- Sedimentary Iron-ore Deposits, Usually Found in Concretions
- Typical price
- $20-200 for typical specimens depending on size and quality
Where rockhounds find anapaite
Classic worldwide localities
- Anapa, Taman Peninsula, Russia
- Bellver de Cerdanya, Spain
- Messina, Italy
- Livingston, Montana, USA
Field-hunting tip
Look in sedimentary iron-ore deposits, usually found in concretions country — that is the host setting where anapaite typically forms. If you start seeing vivianite, siderite, calcite in float, you are in the right ground. Field specimens usually show a tabular crystals, rosettes, radiating clusters habit, so train your eye for that shape before scanning the outcrop.





