Sunstone

Mineral Group: Feldspar Group

Key Properties

Property Value
Mohs Hardness 6.25 (6-6.5)
Typical Size 1-20 carats (commercial: 2-10 carats; Oregon sunstone can be larger)
Typical Price Range $10-200 per carat (commercial: $20-80; Oregon red/bicolor $100-200+)
Rarity Level Limited Occurrence
Availability Level Readily Available
Availability Driver Readily Available
Investment Appropriateness Fashion/Trend Gems

Detailed Descriptions

Rarity Description: Plagioclase feldspar with metallic inclusions creating aventurescence; quality transparent material is moderately uncommon.

Availability Description: Available through specialty gem dealers; Oregon sunstone with copper schiller is particularly popular in alternative jewelry.

Investment Description: Oregon sunstone with copper schiller has niche collector market; fashion-driven with moderate interest; limited but stable demand for finest transparent red material.

Colors

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Investment Ranking Calculation

The composite score of 35.62 is calculated using a weighted formula:

  • Geological Rarity (25%): 65 points
  • Market Availability (25%): 35 points
  • Investment Appropriateness (25%): 25 points
  • Hardness (12.5%): 10 points
  • Price Range (12.5%): 25 points

Formula: (65 × 0.25) + (35 × 0.25) + (25 × 0.25) + (10 × 0.125) + (25 × 0.125) = 35.62

BEARISH
35.62

Score Components

Geo rarity
65
Mkt availability
35
Invest Appr
25
hardness
10
price
25