Prasiolite
Mineral Group: Quartz Group
Key Properties
| Property | Value |
|---|---|
| Mohs Hardness | 7.0 (7) |
| Typical Size | 1-30 carats (commercial: 3-15 carats; medium to large sizes available) |
| Typical Price Range | $10-50 per carat (commercial: $15-35; most is treated material) |
| Rarity Level | Limited Occurrence |
| Availability Level | Readily Available |
| Availability Driver | Readily Available |
| Investment Appropriateness | Non-Investment Gems |
Detailed Descriptions
Rarity Description: Green quartz variety; natural prasiolite is uncommon, most commercial material is produced by heat treatment.
Availability Description: Available through jewelry retailers as a green quartz option; most material is heat-treated to achieve the green color.
Investment Description: Most material is heat-treated; limited natural occurrence but treatment abundant; no investment potential due to ready availability of treated stones.
Colors
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Investment Ranking Calculation
The composite score of 30.62 is calculated using a weighted formula:
- Geological Rarity (25%): 65 points
- Market Availability (25%): 35 points
- Investment Appropriateness (25%): 5 points
- Hardness (12.5%): 25 points
- Price Range (12.5%): 10 points
Formula: (65 × 0.25) + (35 × 0.25) + (5 × 0.25) + (25 × 0.125) + (10 × 0.125) = 30.62
BEARISH
30.62
Score Components
Geo rarity
65
Mkt availability
35
Invest Appr
5
hardness
25
price
10