Comparison · Minerals vs Semi-Precious Stones
Beryl vs Topaz
Beryl and Topaz are easy to confuse. Both sit near Mohs 7.5–8, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Below is a side-by-side comparison of their properties and the quick tests that separate them.
Key differences between Beryl and Topaz
- Both sit near Mohs 7.5–8, so a scratch test alone will not separate them. Lean on luster, streak and heft instead.
- Topaz feels noticeably heavier for its size (specific gravity 3.5 versus 2.63–2.92 for Beryl).
- Hold a thin edge to the light: Beryl is Transparent to translucent, Topaz is transparent.
- They overlap in blue, pink, yellow, and clear, but Beryl also comes in green and Topaz also comes in orange.
- Well-formed crystals give it away: Beryl is Hexagonal, Topaz is orthorhombic.
Beryl vs Topaz properties
| Property | Beryl | Topaz |
|---|---|---|
| Type | Minerals | Semi-Precious Stones |
| Mohs hardness | 7.5–8 | 8 |
| Luster | Vitreous | vitreous |
| Streak | White | White |
| Transparency | Transparent to translucent | transparent |
| Specific gravity | 2.63–2.92 | 3.5 |
| Crystal system | Hexagonal | orthorhombic |
| Common colors | Green (emerald), Blue (aquamarine), Pink (morganite), Yellow (heliodor), Colorless (goshenite) | Colorless, Blue, Yellow, Orange, Pink |
| Rarity | common | uncommon |
| Typical specimen value | $2–$150+ | $20–$3000+ |
Which is more valuable?
Topaz is usually the more valuable of the two: a typical collector specimen runs about $100 against $20 for Beryl, and premium Topaz can reach $3000 or more.
About Beryl
Beryl is a beryllium aluminum cyclosilicate, Be3Al2Si6O18, that crystallizes in the hexagonal system as six-sided prisms. Pure beryl is colorless, but trace elements produce a family of well-known gem varieties, including green emerald, blue-green aquamarine, and pink morganite. It typically forms in granite pegmatites, where slow cooling allows large, well-formed crystals to develop.
About Topaz
Topaz is an aluminum silicate mineral prized for its hardness and brilliant colors. Imperial topaz (orange-pink) from Brazil is most valuable.
Beryl vs Topaz FAQ
Is Beryl the same as Topaz?
No. Beryl is a mineral while Topaz is a semi-precious stone. Both sit near Mohs 7.5–8, so a scratch test alone will not separate them. Lean on luster, streak and heft instead.
How can you tell Beryl from Topaz?
Both sit near Mohs 7.5–8, so a scratch test alone will not separate them. Lean on luster, streak and heft instead. Topaz feels noticeably heavier for its size (specific gravity 3.5 versus 2.63–2.92 for Beryl). Hold a thin edge to the light: Beryl is Transparent to translucent, Topaz is transparent.
Which is harder, Beryl or Topaz?
They are about equally hard, both near Mohs 7.5–8.
Which is more valuable, Beryl or Topaz?
Topaz is usually the more valuable of the two: a typical collector specimen runs about $100 against $20 for Beryl, and premium Topaz can reach $3000 or more.
