| Property | Amethyst | Fluorite |
|---|---|---|
| Category | Semi-Precious Gems | Semi-Precious Gems |
| Primary Color | purple | various |
| Mohs Hardness | 7.0 | 4.0 |
| Specific Gravity | 2.65 | 3.0 |
| Refractive Index | 1.544 | 1.432 |
| Crystal System | Trigonal | Isometric |
| Luster | — | Vitreous |
| Chemical Formula | — | — |
| Price Tier | Moderate ($50-500/ct) | Budget (< $50/ct) |
| Daily Wear | 是 | 否 |
Key Differences
- ◆ {'gem_a': '7.0', 'gem_b': '4.0', 'property': 'Hardness (Mohs)'}
- ◆ {'gem_a': 'Trigonal', 'gem_b': 'Isometric', 'property': 'Crystal System'}
- ◆ {'gem_a': '2.65', 'gem_b': '3.0', 'property': 'Specific Gravity'}
- ◆ {'gem_a': '1.544', 'gem_b': '1.432', 'property': 'Refractive Index'}
- ◆ {'gem_a': 'N/A', 'gem_b': 'Vitreous', 'property': 'Luster'}
- ◆ {'gem_a': 'moderate', 'gem_b': 'budget', 'property': 'Price Range'}
- ◆ {'gem_a': 'Yes', 'gem_b': 'No', 'property': 'Daily Wear'}
When to choose Amethyst
选择Amethyst，当您追求更高硬度与耐久性。适合日常佩戴与订婚珠宝。
When to choose Fluorite
选择Fluorite，当您寻求更实惠的价格。适合日常佩戴与特殊场合。
Frequently Asked Questions
Which is harder, Amethyst or Fluorite?
Amethyst is harder at 7.0 on the Mohs scale, compared to Fluorite at 4.0. This makes Amethyst more resistant to scratching. Amethyst is suitable for daily wear, while fluorite requires more careful handling and is not ideal for daily wear.
Is Amethyst more expensive than Fluorite?
Yes, Amethyst is generally more expensive. Amethyst is classified as moderately priced ($50-500/ct) with prices around moderately priced ($50-500/ct), while Fluorite is budget-friendly (under $50/ct) at budget-friendly (under $50/ct).
Should I choose Amethyst or Fluorite for an engagement ring?
For an engagement ring, Amethyst is the stronger choice with a durability rating of 7/10. At 7.0 Mohs hardness, it can withstand daily wear well. Fluorite (4.0 Mohs) is softer and more prone to scratching with everyday use, making it better suited for occasional-wear jewelry.
How can I tell Amethyst and Fluorite apart?
There are several visual cues: Amethyst typically appears purple while Fluorite is various; Amethyst (RI 1.544-1.553) shows more brilliance than Fluorite (RI 1.432-1.436); they have different crystal systems — Amethyst is Trigonal and Fluorite is Isometric. A gemologist can confirm identification using refractive index testing.
Why do Amethyst and Fluorite look similar?
Amethyst and Fluorite look similar because both can show overlapping colors — Amethyst is purple and Fluorite is various.