Sazykinaite-(Y) is an exceptionally rare sodium-yttrium carbonate mineral found in alkaline pegmatites of the Lovozero Massif. It typically occurs as small, pale yellow tabular crystals often associated with complex rare-earth bearing minerals in intrusive igneous environments.
Is this sazykinaite-(y)?
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 sazykinaite-(y) with a known reference. Sazykinaite-(Y) sits at Mohs 4-5 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Sazykinaite-(Y) leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Sazykinaite-(Y) typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: yellow, yellowish-green, colorless.
- 5Look at form & habitCrystal system: orthorhombic. Typical habit: tabular crystals, wedge-shaped aggregates.
Often found alongside sazykinaite-(y)
Minerals reported to co-occur with sazykinaite-(y). Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Na₃Y(CO₃)₃·6H₂O
- Mohs hardness
- 4-5
- Density
- 2.8-2.9 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Transparent
- Crystal system
- Orthorhombic
- Crystal habit
- Tabular Crystals, Wedge-shaped Aggregates
- Cleavage
- Good
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Alkaline Pegmatites
- Typical price
- $50-300 per specimen
Where rockhounds find sazykinaite-(y)
Classic worldwide localities
- Kola Peninsula, Russia
- Lovozero Massif, Russia
Field-hunting tip
Look in alkaline pegmatites country — that is the host setting where sazykinaite-(y) typically forms. If you start seeing eudialyte, microcline, aegirine in float, you are in the right ground. Field specimens usually show a tabular crystals, wedge-shaped aggregates habit, so train your eye for that shape before scanning the outcrop.




