Verdelite

Mineral Group: Tourmaline Group

Key Properties

Property Value
Mohs Hardness 7.25 (7-7.5)
Typical Size 0.5-30 carats (commercial: 1-20 carats; larger sizes more available than blue)
Typical Price Range $50-500 per carat (commercial: $100-300; fine green $300-500)
Rarity Level Limited Occurrence
Availability Level Readily Available
Availability Driver Readily Available
Investment Appropriateness Fashion/Trend Gems

Detailed Descriptions

Rarity Description: Green tourmaline; occurs with moderate frequency in pegmatites, more common than blue or red varieties.

Availability Description: Green tourmaline is common in commercial markets; available in various sizes through jewelry retailers and gem dealers.

Investment Description: Green tourmaline relatively common; limited investment appeal; primarily fashion-driven jewelry market; suitable for personal enjoyment rather than appreciation.

Colors

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Investment Ranking Calculation

The composite score of 40.0 is calculated using a weighted formula:

  • Geological Rarity (25%): 65 points
  • Market Availability (25%): 35 points
  • Investment Appropriateness (25%): 25 points
  • Hardness (12.5%): 25 points
  • Price Range (12.5%): 45 points

Formula: (65 × 0.25) + (35 × 0.25) + (25 × 0.25) + (25 × 0.125) + (45 × 0.125) = 40.0

BEARISH
40.0

Score Components

Geo rarity
65
Mkt availability
35
Invest Appr
25
hardness
25
price
45