Afghanite

Mineral Group: Cancrinite Group

Key Properties

Property Value
Mohs Hardness 5.5 (5.5)
Typical Size Unknown
Typical Price Range $500-3,000+ per carat (commercial: $1,000-2,000; rare collector stone)
Rarity Level Singular Occurrence
Availability Level Museum Grade Rarity
Availability Driver Limited Deposits
Investment Appropriateness Speculative Collector Gems

Detailed Descriptions

Rarity Description: Rare blue sodium, potassium, calcium tectosilicate; primarily known from Afghanistan with very limited gem material.

Availability Description: Rarely seen outside of mineral specimen collections; when available, traded among specialist collectors and museums.

Investment Description: Rare from Afghanistan; very limited gem material; small specialist collector market; minimal liquidity; primarily mineralogical interest.

Colors

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Investment Ranking Calculation

The composite score of 71.25 is calculated using a weighted formula:

  • Geological Rarity (25%): 100 points
  • Market Availability (25%): 100 points
  • Investment Appropriateness (25%): 50 points
  • Hardness (12.5%): 5 points
  • Price Range (12.5%): 65 points

Formula: (100 × 0.25) + (100 × 0.25) + (50 × 0.25) + (5 × 0.125) + (65 × 0.125) = 71.25

BULLISH
71.25

Score Components

Geo rarity
100
Mkt availability
100
Invest Appr
50
hardness
5
price
65