Goldquarryite is a rare phosphate mineral originally described from the Gold Quarry mine in Nevada. It typically forms small, white tabular crystals or aggregates within phosphate-rich ore zones.
Is this goldquarryite?
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 goldquarryite with a known reference. Goldquarryite sits at Mohs 3 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Goldquarryite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Goldquarryite typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: white, colorless.
- 5Look at form & habitCrystal system: monoclinic. Typical habit: tabular crystals, aggregates.
Often confused with
Goldquarryite vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside goldquarryite
Minerals reported to co-occur with goldquarryite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- CdAl₂(PO₄)₂(OH)₂·8H₂O
- Mohs hardness
- 3
- Density
- 2.83 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Transparent
- Crystal system
- Monoclinic
- Crystal habit
- Tabular Crystals, Aggregates
- Cleavage
- None
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Phosphate-rich Sedimentary Rock Environments
- Typical price
- $50-300 per specimen
Where rockhounds find goldquarryite
Classic worldwide localities
- Gold Quarry mine, Nevada, USA
Field-hunting tip
Look in phosphate-rich sedimentary rock environments country — that is the host setting where goldquarryite typically forms. If you start seeing variscite, wavellite, crandallite in float, you are in the right ground. Field specimens usually show a tabular crystals, aggregates habit, so train your eye for that shape before scanning the outcrop.



