Identification guide · Semi-Precious Stones
How to Identify Kunzite
Kunzite is usually pink, lilac, and violet with a vitreous luster and is transparent. 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 Spodumene, Spinel, and Beryl; the tests below separate them.
Kunzite identification checklist
| Color | Pink, Lilac, Violet | Look at a clean, dry surface in daylight. Color zoning, banding or spots are as diagnostic as the hue. |
|---|---|---|
| Luster | Vitreous | Fresh surfaces shine like glass; a dull surface usually means weathering, so chip or wet a corner. |
| Transparency | Transparent | 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 | Perfect | |
| Fracture | Uneven | |
| Specific gravity | 3.2 | Heavier than it looks (specific gravity about 3.2). |
| Crystal system | Monoclinic |
Kunzite 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. Kunzite vs Spodumene →
Spinel is harder (Mohs 8) than Kunzite (Mohs 7), so Spinel will scratch Kunzite and not the other way round. It scratches glass and a steel knife and cannot be scratched by a steel file. Kunzite vs Spinel →
Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Kunzite vs Beryl →
Both sit near Mohs 7, so a scratch test alone will not separate them. Lean on luster, streak and heft instead.
Is my Kunzite real?
- Hardness: real Kunzite sits at Mohs 7. Glass imitations are about 5.5, so genuine Kunzite 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
- Check whether the specimen's color and texture match typical Kunzite examples.
- Use hardness, streak, luster, grain size, and locality together; no single trait is enough for every specimen.
Kunzite identification FAQ
How can you tell if a rock is Kunzite?
Check the color (pink, lilac, and violet), the vitreous 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 Kunzite?
Kunzite 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 Kunzite and Spodumene?
Kunzite (Mohs 7, vitreous luster) and Spodumene (Mohs 6.75, vitreous luster) look alike, but hardness, streak and heft usually separate them. See the full Kunzite vs Spodumene comparison for a side-by-side table.
How do I know if my Kunzite is real?
Real Kunzite 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 Kunzite worth anything?
Entry-level Kunzite specimens sell for around $30, typical collector pieces about $150, and premium examples $1500 or more depending on size, quality and locality.
What color is Kunzite?
Kunzite is most often pink, lilac, and violet. Color varies with impurities and locality, so confirm with hardness and luster rather than color alone.
