Gemstones hardness chart
Gemstones´ family, Specific Gravity and Mohs hardness | |||
Gemstone Name | Specific Gravity | Mohs Hardness | Gemstone Family |
Agate | 2.58 - 2.64 | 6.5 - 7 | Quartz |
Alexandrite | 3.5 - 3.84 | 8.5 | Chrysoberyl |
Almandine | 3.50 - 4.30 | 7.0 - 7.5 | Garnet |
Amazonite | 2.55 - 2.76 | 6.0 - 6.5 Mohs | Feldspar |
Amethyst | 2.65 | 7.0 Mohs | Quartz |
Andradite | 3.50 - 4.30 | 6.5 - 7.0 | Garnet |
Aquamarine | 2.63 - 2.91 | 7.5 - 8.0 | Beryl |
Bloodstone | 2.65 | 7.0 | Quartz |
Carnelian | 2.59 - 2.61 | 6.0 - 7.0 | Quartz |
Cat's Eye | 3.68 - 3.78 | 8.5 | Chrysoberyl |
Chalcedony | 2.59 - 2.61 | 6.0 - 7.0 | Quartz |
Chrome diopside | 3.278 | 5.5 - 6.5 | |
Chrysoberyl | 3.5 - 3.84 | 8.5 | Chrysoberyl |
Chrysoprase | 2.65 | 7.0 | Quartz |
Citrine | 2.65 | 7.0 | Quartz |
Demantoid | 3.84 | 6.5 | Garnet |
Diamond | 3.52 ± 0.01 | 10 | Diamond |
Dravite | 3.03 - 3.25 | 7.0 - 7.5 | Tourmaline |
Emerald | 2.63 - 2.91 | 7.5 - 8.0 | Beryl |
Feldspar | 2.55 - 2.76 | 6.0 | Feldspar |
Garnet | 3.50 - 4.30 | 6.5 - 7.5 | Garnet |
Goshenite | 2.63 - 2.91 | 7.5 - 8.0 | Beryl |
Green Quartz | 2.65 | 7.0 | Quartz |
Grossular | 3.50 - 4.30 | 7 - 7.5 | Garnet |
Heliodore | 2.63 - 2.91 | 7.5 - 8.0 | Beryl |
Hessonite | 3.64 - 3.69 | 7.0 | Garnet |
Indicolite | 3.03 - 3.25 | 7.0 - 7.5 Mohs | Tourmaline |
Jade | 2.90 - 3.10 | 6.0 | Jade |
Jadeite | 3.24 - 3.43 | 6.0 - 7.0 | Jade |
Jasper | 2.65 | 7.0 | Quartz |
Labradorite | 2.71 - 2.74 | 6.0 - 6.5 | Feldspar |
Lapis Lazuli | 2.70 - 2.90 | 5.0 - 5.5 | Lapis Lazuli |
Malaia garnet | 3.50 - 4.30 | 7.0 - 7.5 | Garnet |
Moonstone | 2.61 | 6.0 | Feldspar |
Morganite | 2.63 - 2.91 | 7.5 - 8.0 | Beryl |
Morion | 2.65 | 7.0 | Quartz |
Nephrite | 2.90 - 3.10 | 6.0 - 6.5 | Jade |
Onyx | 2.65 | 6.0 - 7.0 | Quartz |
Opal | 2.15 | 5.5 - 6 | Opal |
Orthoclase | 2.5 5– 2.63 | 6.0 - 6.5 | Feldspar |
Peridot | 3.22 - 3.45 | 6.5 - 7.0 | Peridot |
Prasiolite | 2.65 | 7.0 | Quartz |
Pyrope | 3.50 - 4.30 | 7.0 - 7.5 | Garnet |
Quartz | 2.65 | 7.0 | Quartz |
Rhodolite | 3.50 - 4.30 | 6.5 - 7.5 | Garnet |
Rose Quartz | 2.65 | 7.0 | Quartz |
Rubicelle | 3.58 - 4.06 | 8.0 Mohs | Spinel |
Ruby | 3.96 - 4.05 | 9.0 | Corundum |
Sapphire | 3.96 - 4.05 | 9.0 | Corundum |
Smoky Quartz | 2.65 | 7.0 Mohs | Quartz |
Spessartine | 3.50 - 4.30 | 6.5 - 7.5 | Garnet |
Spinel | 3.58 - 4.06 | 7.5 - 8.0 | Spinel |
Sunstone | 2.55 - 2.76 | 6.0 - 7.2 | Feldspar |
Topaz | 3.50 - 3.60 | 8.0 | Topaz |
Tourmaline | 3.03 - 3.25 | 7.0 - 7.5 | Tourmaline |
Tsavorite | 3.50 - 4.30 | 7.0 - 7.5 | Garnet |
Turquoise | 2.60 - 2.80 | 5.0 - 7.0 | Turquoise |
Uvarovite | 3.50 - 4.30 | 6.5 - 7.5 | Garnet |
Zircon | 4.60 - 4.70 | 7.5 | Zircon |
