Obsidian vs Onyx
장미 수정과 모르가나이트는 외관이 유사하여 자주 비교됩니다. 모르가나이트의 경도는 모스 7.5로 장미 수정(7.0)보다 높습니다. 가격 면에서 장미 수정은 경제적이고 모르가나이트는 중간 가격대입니다.
| Property | Obsidian | Onyx |
|---|---|---|
| Category | Semi-Precious Gems | Semi-Precious Gems |
| Primary Color | black | black |
| Mohs Hardness | 5.0–5.5 | 6.5–7.0 |
| Specific Gravity | 2.35 | 2.55 |
| Refractive Index | 1.45 | 1.53 |
| Crystal System | Amorphous | Trigonal |
| Luster | Vitreous | — |
| Chemical Formula | — | — |
| Price Tier | Budget (< $50/ct) | Moderate ($50-500/ct) |
| Daily Wear | 아니오 | 아니오 |
Key Differences
- ◆ {'gem_a': '5.0', 'gem_b': '6.5', 'property': 'Hardness (Mohs)'}
- ◆ {'gem_a': 'Amorphous', 'gem_b': 'Trigonal', 'property': 'Crystal System'}
- ◆ {'gem_a': '2.35', 'gem_b': '2.55', 'property': 'Specific Gravity'}
- ◆ {'gem_a': '1.45', 'gem_b': '1.53', 'property': 'Refractive Index'}
- ◆ {'gem_a': 'Vitreous', 'gem_b': 'N/A', 'property': 'Luster'}
- ◆ {'gem_a': 'budget', 'gem_b': 'moderate', 'property': 'Price Range'}
- ◆ {'gem_a': 'No', 'gem_b': 'No', 'property': 'Daily Wear'}
When to choose Obsidian
경제적인 가격대의 부드러운 분홍색을 원한다면 장미 수정을 선택하세요. 특별한 행사용 주얼리와 펜던트에 이상적입니다.
When to choose Onyx
더 높은 경도와 광채, 섬세한 분홍색을 원한다면 모르가나이트를 선택하세요. 약혼반지와 일상 주얼리에 이상적입니다.
Frequently Asked Questions
Which is harder, Obsidian or Onyx?
Onyx is harder at 6.5-7.0 on the Mohs scale, compared to Obsidian at 5.0-5.5. This makes Onyx more resistant to scratching. Onyx requires more careful handling and is not ideal for daily wear, while obsidian requires more careful handling and is not ideal for daily wear.
Is Obsidian more expensive than Onyx?
No, Obsidian is generally less expensive. Obsidian is classified as budget-friendly (under $50/ct) at budget-friendly (under $50/ct), while Onyx is moderately priced ($50-500/ct) at moderately priced ($50-500/ct).
Should I choose Obsidian or Onyx for an engagement ring?
Neither Obsidian nor Onyx is ideal for an engagement ring worn daily. Onyx (6.5-7.0 Mohs) is the more durable of the two, while Obsidian (5.0-5.5 Mohs) is softer. If you choose either, consider a protective setting like a bezel.
How can I tell Obsidian and Onyx apart?
There are several visual cues: both appear black, but often in different saturations; Onyx (RI 1.53-1.543) shows more brilliance than Obsidian (RI 1.45-1.55); they have different crystal systems — Obsidian is Amorphous and Onyx is Trigonal. A gemologist can confirm identification using refractive index testing.
Why do Obsidian and Onyx look similar?
Obsidian and Onyx look similar because both gems display black hues.