Painite

Mineral Group: Borate Group

Key Properties

Property Value
Mohs Hardness 8.0 (8)
Typical Size 0.1-3 carats (commercial: 0.25-1 carat; extremely rare in any size)
Typical Price Range $50,000-100,000+ per carat (commercial: $60,000-80,000; formerly world's rarest)
Rarity Level Singular Occurrence
Availability Level Museum Grade Rarity
Availability Driver Limited Deposits
Investment Appropriateness Speculative Collector Gems

Detailed Descriptions

Rarity Description: Once among the rarest minerals known, with very few gem-quality crystals; exceptionally scarce.

Availability Description: Almost exclusively sold to museums and elite collectors when specimens surface; not present in consumer markets.

Investment Description: Formerly world's rarest gemstone; extremely limited market; museum-quality specimens command extraordinary prices; highly illiquid but potential for appreciation.

Colors

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Investment Ranking Calculation

The composite score of 83.12 is calculated using a weighted formula:

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

Formula: (100 × 0.25) + (100 × 0.25) + (50 × 0.25) + (65 × 0.125) + (100 × 0.125) = 83.12

VERY BULLISH
83.12

Score Components

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