Pink pearls, typically associated with the Queen Conch, are calcareous concretions rather than true minerals. They are highly sought after by collectors for their unique flame-like surface structure and distinct salmon-pink color.
Is this pink pearl?
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 pink pearl with a known reference. Pink Pearl sits at Mohs 2.5-4, 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: pearly.
- 4Match the color rangeCompare against the expected color range: pink, salmon, rose.
- 5Look at form & habitTypical habit: spheroidal.
Often confused with
Pink Pearl vs. its common look-alikes, and how to tell them apart in the field.
Often found alongside pink pearl
Minerals reported to co-occur with pink pearl. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Mohs hardness
- 2.5-4
- Density
- 2.6-2.8 g/cm³
- Streak
- White
- Luster
- Pearly
- Transparency
- Opaque
- Crystal habit
- Spheroidal
- Cleavage
- None
- Rarity
- Rare
- Uses
- Gemstone, Jewelry, Collector
- Host rock
- biogenic
Where rockhounds find pink pearl
1 mapped spotsClassic worldwide localities
- Caribbean Sea
- Gulf of Mexico
- Florida
Field-hunting tip
Where it forms: biogenic. If you start seeing aragonite, calcite in float, you are in the right ground. Typical habit: spheroidal. Train your eye for that shape before scanning the outcrop. In the U.S., the densest reported localities are in Iowa. Start trip planning there.



