Tanzanite vs Turquoise
Comparing Tanzanite and Turquoise — two birthstone gems often compared by jewelry buyers. On the Mohs scale, Tanzanite rates 6.5 and Turquoise rates 5.0. In terms of price, Tanzanite falls in the moderately priced range and Turquoise in the budget-friendly range.
| Property | Tanzanite | Turquoise |
|---|---|---|
| Category | Semi-Precious Gems | Semi-Precious Gems |
| Primary Color | various | blue |
| Mohs Hardness | 6.5–7.0 | 5.0–6.0 |
| Specific Gravity | 3.35 | 2.3 |
| Refractive Index | 1.685 | 1.61 |
| Crystal System | Orthorhombic | Triclinic |
| Luster | — | Waxy,Dull (Earthy) |
| Chemical Formula | — | — |
| Price Tier | Moderate ($50-500/ct) | Budget (< $50/ct) |
| Daily Wear | No | No |
Key Differences
- ◆ {'gem_a': '6.5', 'gem_b': '5.0', 'property': 'Hardness (Mohs)'}
- ◆ {'gem_a': 'Orthorhombic', 'gem_b': 'Triclinic', 'property': 'Crystal System'}
- ◆ {'gem_a': '3.35', 'gem_b': '2.3', 'property': 'Specific Gravity'}
- ◆ {'gem_a': '1.685', 'gem_b': '1.61', 'property': 'Refractive Index'}
- ◆ {'gem_a': 'N/A', 'gem_b': 'Waxy,Dull (Earthy)', 'property': 'Luster'}
- ◆ {'gem_a': 'moderate', 'gem_b': 'budget', 'property': 'Price Range'}
- ◆ {'gem_a': 'No', 'gem_b': 'No', 'property': 'Daily Wear'}
When to choose Tanzanite
Choose Tanzanite when you want superior hardness and scratch resistance, higher brilliance and light performance, premium quality and rarity, and its significance as the modern December birthstone. It's ideal for occasional wear pieces and pendants.
When to choose Turquoise
Choose Turquoise when you want a more budget-friendly price point. It's ideal for collector specimens and carefully worn jewelry.
Frequently Asked Questions
Which is harder, Tanzanite or Turquoise?
Tanzanite is harder at 6.5-7.0 on the Mohs scale, compared to Turquoise at 5.0-6.0. This makes Tanzanite more resistant to scratching. Tanzanite requires more careful handling and is not ideal for daily wear, while turquoise requires more careful handling and is not ideal for daily wear.
Is Tanzanite more expensive than Turquoise?
Yes, Tanzanite is generally more expensive. Tanzanite is classified as moderately priced ($50-500/ct) with prices around moderately priced ($50-500/ct), while Turquoise is budget-friendly (under $50/ct) at budget-friendly (under $50/ct).
Should I choose Tanzanite or Turquoise for an engagement ring?
Neither Tanzanite nor Turquoise is ideal for an engagement ring worn daily. Tanzanite (6.5-7.0 Mohs) is the more durable of the two, while Turquoise (5.0-6.0 Mohs) is softer. If you choose either, consider a protective setting like a bezel.
How can I tell Tanzanite and Turquoise apart?
There are several visual cues: Tanzanite typically appears various while Turquoise is blue; Tanzanite (RI 1.685-1.707) shows more brilliance than Turquoise (RI 1.61-1.65); they have different crystal systems — Tanzanite is Orthorhombic and Turquoise is Triclinic. A gemologist can confirm identification using refractive index testing.
Can I use Tanzanite instead of Turquoise as a birthstone?
Yes, both Tanzanite and Turquoise are recognized birthstones for December. Tanzanite is the modern December birthstone and Turquoise is the alternative December birthstone, so either is an appropriate choice for that month.