Gemstones Like Andean Opal

Smithsonite

Gemstone

4.60 Poor

Harlequin Opal

Gemstone

9.20 Excellent

Black Opal

Gemstone

8.74 Great

Grandidierite

Gemstone

8.10 Great

Montana Sapphire

Gemstone

7.82 Good

Crystal Opal

Gemstone

7.73 Good

Boulder Opal

Gemstone

7.54 Good

Contra Luz Opal

Gemstone

7.54 Good

Ethiopian Opal

Gemstone

7.18 Good

Euclase

Gemstone

7.10 Good

White Opal

Gemstone

6.90 Fair

Turquoise

Gemstone

6.67 Fair

Fire Opal

Gemstone

6.26 Fair

Fluorapatite

Gemstone

5.89 Mediocre

Apatite

Gemstone

5.52 Mediocre

Hyalite Opal

Gemstone

5.43 Mediocre

Scorodite

Gemstone

4.85 Poor

Rose Quartz

Gemstone

4.78 Poor

Wood Opal

Gemstone

4.69 Poor

Chalcedony

Gemstone

4.42 Poor

Prehnite

Gemstone

4.19 Poor

Rosasite

Gemstone

4.14 Poor

Chrysocolla

Gemstone

3.96 Poor

Pigeon Blood Ruby

Gemstone

9.62 Brilliant