Blue Apatite
Mineral Group: Apatite Group
Key Properties
| Property | Value |
|---|---|
| Mohs Hardness | 5.0 (5) |
| Typical Size | 0.5-15 carats (commercial: 1-8 carats; larger eye-clean stones uncommon) |
| Typical Price Range | $10-100 per carat (commercial: $20-60; collector market) |
| Rarity Level | Limited Occurrence |
| Availability Level | Readily Available |
| Availability Driver | Readily Available |
| Investment Appropriateness | Unknown |
Detailed Descriptions
Rarity Description: Apatite crystals suitable for faceting are found sporadically and are collectible.
Availability Description: Common in collector and bead markets; facetable material is sold through gem shows and specialty dealers.
Investment Description: No description available.
Colors
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Investment Ranking Calculation
The composite score of 28.75 is calculated using a weighted formula:
- Geological Rarity (25%): 65 points
- Market Availability (25%): 35 points
- Investment Appropriateness (25%): 0 points
- Hardness (12.5%): 5 points
- Price Range (12.5%): 25 points
Formula: (65 × 0.25) + (35 × 0.25) + (0 × 0.25) + (5 × 0.125) + (25 × 0.125) = 28.75
VERY BEARISH
28.75
Score Components
Geo rarity
65
Mkt availability
35
Invest Appr
0
hardness
5
price
25