Rhodochrosite

Mineral Group: Carbonate Group

Key Properties

Property Value
Mohs Hardness 3.75 (3.5-4)
Typical Size 0.5-10 carats (commercial: 1-5 carats; faceted stones typically small, cabochons larger)
Typical Price Range $50-500 per carat (commercial: $100-300; faceted stones rare, cabochons less)
Rarity Level Limited Occurrence
Availability Level Limited Supply
Availability Driver Limited Deposits
Investment Appropriateness Fashion/Trend Gems

Detailed Descriptions

Rarity Description: A carbonate that forms striking pink crystals in select localities; gem material is limited.

Availability Description: Market supply is often in collectible specimens and small cabochon material; fine faceted gems are scarce and command premium prices.

Investment Description: Faceted stones rare with collector appeal; primarily cabochon material; moderate interest for finest transparent pink; limited investment potential due to small market.

Colors

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Investment Ranking Calculation

The composite score of 45.0 is calculated using a weighted formula:

  • Geological Rarity (25%): 65 points
  • Market Availability (25%): 65 points
  • Investment Appropriateness (25%): 25 points
  • Hardness (12.5%): 5 points
  • Price Range (12.5%): 45 points

Formula: (65 × 0.25) + (65 × 0.25) + (25 × 0.25) + (5 × 0.125) + (45 × 0.125) = 45.0

NEUTRAL
45.0

Score Components

Geo rarity
65
Mkt availability
65
Invest Appr
25
hardness
5
price
45