Turquoise

Mineral Group: Phosphate Group

Key Properties

Property Value
Mohs Hardness 6.0 (5-6)
Typical Size 1-50+ carats (commercial: any size for cabochons)
Typical Price Range $5-200 per carat (commercial: $20-80; Persian sky blue)
Rarity Level Limited Occurrence
Availability Level Readily Available
Availability Driver Readily Available
Investment Appropriateness Fashion/Trend Gems

Pricing

Typical Price
N/A
per carat
Listing Price
N/A
per carat
Sold Price
N/A
per carat
Discount Level
N/A
vs typical

Price Calculator

Estimate Type Total Value Price per Carat
Typical Cost - -
Likely Listed Cost - -
Likely Sold Cost - -

Detailed Descriptions

Rarity Description: Blue-green copper aluminum phosphate; Persian and American material valued.

Availability Description: Available through gem dealers; natural untreated material commands premium.

Investment Description: Popular Southwest gem; limited investment potential; fashion-driven market; treatment concerns.

BEARISH
35.62

Score Components

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

Buy This Gem

Buy on Gem Rock Auctions Buy on Best In Gems

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

Current Listings

Please sign in to view current listings.

Other gems in the Phosphate Group:

My Holdings of this gem

You do not have any holdings of this gem type.