swap_horiz Chalcedony Alternatives

1

Blue Sapphire

A blue sapphire is a highly valued gemstone derived from corundum. Its intense blue color arises from trace elements wit...

Blue Jewelry Precious Corundum

9.5 Brilliant

2

Blue Spinel

Blue spinel is a naturally occurring magnesium aluminum mineral prized as a gemstone for its vitreous luster and durabil...

Natural Blue Jewelry Spinel

8.6 Great

3

Benitoite

Benitoite is a rare blue barium titanium cyclosilicate mineral that was first discovered in 1907 in San Benito County, C...

Blue Jewelry Rare Barium Titanium

8.5 Great

4

Indicolite Tourmaline

Indicolite is the blue to blue-green color variety of elbaite, a species in the tourmaline mineral group. Its color is a...

Blue Jewelry Tourmaline Pleochroic

8.1 Great

5

Lapis Lazuli

Lapis lazuli is an opaque blue metamorphic rock rather than a single mineral. It is an aggregate dominated by lazurite,...

Blue Jewelry Ancient Metamorphic

6.8 Fair

6

Shattuckite

Shattuckite is a rare copper silicate hydroxide mineral that commonly forms in oxidized zones of copper deposits. It is...

Blue Arizona Jewelry Opaque

6.3 Fair

7

Lazurite

Lazurite is a blue mineral in the sodalite group and one of the principal components of lapis lazuli, the blue ornamenta...

Blue Jewelry Ancient Sulfur

6.3 Fair

8

Larimar

Larimar is a blue to blue-green variety of pectolite, a calcium sodium silicate mineral. The color is associated with co...

Blue Jewelry Rare Caribbean

5.8 Mediocre

9

Azurite

Azurite is a basic copper carbonate mineral recognized by its deep blue to blue-black color and commonly opaque appearan...

Blue Jewelry Vivid Opaque

5.5 Mediocre

10

Blue Topaz

Blue topaz is the blue variety of topaz, a fluorine- and aluminum-bearing silicate mineral used as a gemstone. Most blue...

Blue Popular Jewelry Topaz

5.5 Mediocre

11

Kyanite

Kyanite is an aluminosilicate mineral with the chemical formula Al2SiO5. It is distinguished by strong directional varia...

Blue Jewelry Silicate Anisotropic

5.3 Mediocre

12

Celestite

Celestite is a mineral composed of strontium sulfate and is named for its pale sky-blue color, although it can also occu...

Blue Collector Jewelry Crystals

5.3 Mediocre

13

Rose Quartz

Rose quartz is a pink variety of quartz used chiefly as an ornamental stone and gemstone. Its color is generally attribu...

Pink Jewelry Quartz Translucent

5.2 Mediocre

14

Smithsonite

Smithsonite is a zinc carbonate mineral, ZnCO3, that forms mainly in the oxidized zones of zinc ore deposits. It was his...

Jewelry Pastel Translucent Blue Green

5.0 Mediocre

15

Afghanite

Afghanite is a rare blue to colorless feldspathoid mineral in the cancrinite-sodalite group. It was first identified in...

Blue Jewelry Rare Afghanistan

5.0 Mediocre

16

Dumortierite

Dumortierite is a fibrous aluminum borosilicate mineral that commonly forms columnar crystals or parallel aggregates. It...

Blue Jewelry Opaque Silicate

4.8 Poor

17

Gahnite

Gahnite is the zinc-rich spinel-group mineral with the ideal formula ZnAl2O4. It was described from the Falun mine in Sw...

Blue Collector Jewelry Rare

4.8 Poor

18

Prehnite

Prehnite is an orthorhombic calcium aluminosilicate mineral with the formula Ca2Al2Si3O10(OH)2. It was described in 1788...

Green Pale Jewelry Translucent

4.6 Poor

19

Plancheite

Plancheite is a rare hydrated copper silicate mineral with the ideal formula Cu8Si8O22(OH)4·H2O. It is typically pale to...

Blue Jewelry Rare Fibrous

4.5 Poor

20

Sodalite

Sodalite is a blue to blue-violet tectosilicate mineral in the feldspathoid group, with an ideal composition of Na4Al3Si...

Blue Affordable Jewelry Opaque

4.2 Poor