Identification guide · Quartz Family
How to Identify Dalmatian Jasper
Dalmatian Jasper is usually cream, white, and black with a waxy luster and is opaque. It has a Mohs hardness of 7. It scratches glass and a steel knife and cannot be scratched by a steel file. Its streak is white. It is most often confused with Jasper, Mookaite, and Agate; the tests below separate them.
Dalmatian Jasper identification checklist
| Color | Cream, White, Black, Tan | Look at a clean, dry surface in daylight. Color zoning, banding or spots are as diagnostic as the hue. |
|---|---|---|
| Luster | Waxy | Compare a fresh surface with glass and metal; this luster is softer than either. |
| Transparency | Opaque | Hold a thin edge up to a bright light and note whether light passes through. |
| Mohs hardness | 7 | It scratches glass and a steel knife and cannot be scratched by a steel file. |
| Streak | White | Drag a corner across unglazed porcelain (the back of a bathroom tile) and check the powder color. |
| Cleavage | None | |
| Fracture | Conchoidal | Broken surfaces show smooth, curved, shell-like scoops. |
| Specific gravity | 2.6 | Ordinary rock-like heft (specific gravity about 2.6), similar to quartz. |
| Crystal system | Hexagonal |
Dalmatian Jasper look-alikes and how to tell them apart
Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Dalmatian Jasper vs Jasper →
Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Dalmatian Jasper vs Mookaite →
Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Dalmatian Jasper vs Agate →
Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead.
Is my Dalmatian Jasper real?
- Hardness: real Dalmatian Jasper sits at Mohs 7. Glass imitations are about 5.5, so genuine Dalmatian Jasper scratches glass while a glass fake cannot.
- Bubbles: round gas bubbles under a 10x loupe mean glass or resin, never a natural stone.
- Color: dyed material concentrates color in cracks and pores; look for pigment collecting at the edges of fractures.
- Temperature: natural crystals feel cool and take longer to warm in your hand than plastic or resin.
Field tips
- Look for the distinctive color, pattern, and translucency associated with Dalmatian Jasper.
- Photograph a fresh or polished surface in natural light and avoid glare.
- Use hardness, luster, fracture, and locality together; many chalcedony trade varieties overlap visually.
Dalmatian Jasper identification FAQ
How can you tell if a rock is Dalmatian Jasper?
Check the color (cream, white, black, and tan), the waxy luster, a Mohs hardness of 7 and a white streak. Photographing it with the StoneSnap app gives a match in seconds.
What is the hardness of Dalmatian Jasper?
Dalmatian Jasper has a Mohs hardness of 7. It scratches glass and a steel knife and cannot be scratched by a steel file.
What is the difference between Dalmatian Jasper and Jasper?
Dalmatian Jasper (Mohs 7, waxy luster) and Jasper (Mohs 7, vitreous luster) look alike, but hardness, streak and heft usually separate them. See the full Dalmatian Jasper vs Jasper comparison for a side-by-side table.
How do I know if my Dalmatian Jasper is real?
Real Dalmatian Jasper matches the hardness listed above, shows no round gas bubbles under magnification, and does not concentrate dye in cracks. Glass and resin fakes fail at least one of those checks.
Is Dalmatian Jasper worth anything?
Entry-level Dalmatian Jasper specimens sell for around $3, typical collector pieces about $15, and premium examples $80 or more depending on size, quality and locality.
What color is Dalmatian Jasper?
Dalmatian Jasper is most often cream, white, black, and tan. Color varies with impurities and locality, so confirm with hardness and luster rather than color alone.
