Jasperized dinosaur bone is a fossilized material where the original bone structure has been replaced by chalcedony through a process of permineralization. Collectors look for visible 'cells' or 'honeycomb' patterns that distinguish the bone from common jasper or wood. It is highly prized in lapidary work for its unique internal patterns and varied coloration.
Is this jasperized dinosaur bone?
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 jasperized dinosaur bone with a known reference. Jasperized Dinosaur Bone sits at Mohs 6.5-7 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Jasperized Dinosaur Bone leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Jasperized Dinosaur Bone typically shows a waxy to vitreous luster.
- 4Match the color rangeCompare against the expected color range: red, brown, yellow, black, white, orange.
- 5Look at form & habitCrystal system: trigonal. Typical habit: cellular structure.
Often confused with
Jasperized Dinosaur Bone vs. its common look-alikes — and how to tell them apart in the field.
How to tell apart: Luster reads waxy to vitreous on Jasperized Dinosaur Bone and vitreous on Wood Opal.
How to tell apart: Luster reads waxy to vitreous on Jasperized Dinosaur Bone and waxy on Agate.
How to tell apart: Luster reads waxy to vitreous on Jasperized Dinosaur Bone and waxy on Chalcedony.
Often found alongside jasperized dinosaur bone
Minerals reported to co-occur with jasperized dinosaur bone. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- SiO₂
- Mohs hardness
- 6.5-7
- Density
- 2.6-2.7 g/cm³
- Streak
- White
- Luster
- Waxy to Vitreous
- Transparency
- Opaque
- Crystal system
- Trigonal
- Crystal habit
- Cellular Structure
- Cleavage
- None
- Rarity
- Common
- Uses
- Lapidary, Collector, Decorative
- Host rock
- Sedimentary Deposits
- Typical price
- $10-100 per specimen depending on size and cellular detail
Where rockhounds find jasperized dinosaur bone
4 mapped spotsClassic worldwide localities
- Utah, USA
- Colorado, USA
- Wyoming, USA
- Morocco
- Madagascar
Field-hunting tip
Look in sedimentary deposits country — that is the host setting where jasperized dinosaur bone typically forms. If you start seeing quartz, chalcedony, calcite in float, you are in the right ground. Field specimens usually show a cellular structure habit, so train your eye for that shape before scanning the outcrop. In the U.S., the densest reported localities are in Utah — start trip planning there.
Common questions
How do you identify jasperized dinosaur bone?+
Where is jasperized dinosaur bone found?+
Can I find jasperized dinosaur bone in the United States?+
How much is jasperized dinosaur bone worth?+
What rocks look like jasperized dinosaur bone?+
What minerals are found with jasperized dinosaur bone?+
What kind of rock does jasperized dinosaur bone form in?+
What is jasperized dinosaur bone used for?+
Find jasperized dinosaur bone on the map
RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.
