Gem |
Hardness |
Info Page |
Diamond |
10 |
Diamond Information Page |
Ruby |
9 |
Ruby Information Page |
Sapphire |
9 |
Sapphire Information Page |
Star Ruby |
9 |
Star Ruby Information Page |
Star Sapphire |
9 |
Star Sapphire Information Page |
Color-Change Sapphire |
9 |
Color Change Sapphire Information Page |
Chrysoberyl Cat's Eye |
8.5 |
Chrysoberyl Cat's Eye Information Page |
Alexandrite |
8.5 |
Alexandrite Information Page |
Chrysoberyl |
8.5 |
Chrysoberyl Information Page |
Topaz |
8 |
Topaz Information Page |
Rutile Topaz |
8 |
Rutile Topaz Information Page |
Azotic Topaz |
8 |
Azotic Topaz Information Page |
Mystic Topaz |
8 |
Mystic Topaz Information Page |
Spinel |
8 |
Spinel Information Page |
Imperial Topaz |
8 |
Imperial Topaz Information Page |
Emerald |
7.5 - 8 |
Emerald Information Page |
Andalusite |
7.5 |
Andalusite Information Page |
Hambergite |
7.5 |
Hambergite Information Page |
Aquamarine |
7.5 - 8 |
Aquamarine Information Page |
Goshenite |
7.5 - 8 |
Goshenite Information Page |
Cat's Eye Aquamarine |
7.5 - 8 |
Cat's Eye Aquamarine Information Page |
Beryl |
7.5 - 8 |
Beryl Information Page |
Morganite |
7.5 - 8 |
Morganite Information Page |
Demantoid Garnet |
7 - 7.5 |
Demantoid Garnet Information Page |
Quartz Cat's Eye |
7 |
Quartz Information Page |
Amethyst |
7 |
Amethyst Information Page |
Cat's Eye Tourmaline |
7 - 7.5 |
Cat's Eye Tourmaline Information Page |
Smoky Quartz |
7 |
Quartz Information Page |
Quartz |
7 |
Quartz Information Page |
Tourmaline |
7 - 7.5 |
Tourmaline Information Page |
Star Lemon Quartz |
7 |
Quartz Information Page |
Rose Quartz |
7 |
Rose Quartz Information Page |
Ametrine |
7 |
Ametrine Information Page |
Kunzite |
7 |
Kunzite Information Page |
Citrine |
7 |
Citrine Information Page |
Mystic Quartz |
7 |
Mystic Quartz Information Page |
Paraiba Tourmaline |
7 - 7.5 |
Paraiba Tourmaline Information Page |
Danburite |
7 - 7.5 |
Danburite Information Page |
Strawberry Quartz |
7 |
Strawberry Quartz Information Page |
Aventurine |
7 |
Aventurine Information Page |
Rutile Quartz |
7 |
Rutile Quartz Information Page |
Chrome Tourmaline |
7 - 7.5 |
Tourmaline Information Page |
Dumortierite Quartz |
7 - 8.5 |
Dumortierite Quartz Information Page |
Iolite |
7 - 7.5 |
Iolite Information Page |
Rubellite Tourmaline |
7 - 7.5 |
Rubellite Tourmaline Information Page |
Tanzanite |
6.5 - 7 |
Tanzanite Information Page |
Peridot |
6.5 - 7 |
Peridot Information Page |
Mali Garnet |
6.5 - 7.5 |
Mali Garnet Information Page |
Jasper |
6.5 - 7 |
Jasper Information Page |
Axinite |
6.5 - 7 |
Axinite Information Page |
Chrysoprase |
6.5 - 7 |
Chrysoprase Information Page |
Fossil Coral |
6.5 - 7 |
Fossil Coral Information Page |
Dendritic Agate |
6.5 - 7 |
Dendritic Agate Information Page |
Spessartite Garnet |
6.5 - 7.5 |
Spessartite Garnet Information Page |
Fire Agate |
6.5 - 7 |
Fire Agate Information Page |
Tiger's Eye |
6.5 - 7 |
Tiger's Eye Information Page |
Grossularite Garnet |
6.5 - 7.5 |
Grossularite Information Page |
Agate Geode |
6.5 - 7 |
Agate Geode Information Page |
Star Rose Quartz |
6.5 - 7 |
Rose Quartz Information Page |
Ruby-Zoisite |
6.5 - 7 |
Ruby Zoisite Information Page |
Star Garnet |
6.5 - 7.5 |
Garnet Information Page |
Idocrase |
6.5 |
Idocrase Information Page |
Color-Change Garnet |
6.5 - 7.5 |
Garnet Information Page |
Hiddenite |
6.5 - 7 |
Hiddenite Information Page |
Agate |
6.5 - 7 |
Agate Information Page |
Melanite |
6.5 - 7 |
Melanite Information Page |
Zircon |
6.5 - 7.5 |
Zircon Information Page |
Color-Change Diaspore |
6.5 - 7 |
Color Change Diaspore Information Page |
Bloodstone |
6.5 - 7 |
Bloodstone Information Page |
Hessonite Garnet |
6.5 - 7.5 |
Hessonite Garnet Information Page |
Tiger's Eye Matrix |
6.5 - 7 |
Tiger's Eye Information Page |
Cat's Eye Diaspore |
6.5 - 7 |
Cat's Eye Diaspore Information Page |
Spodumene |
6.5 - 7 |
Spodumene Information Page |
Tsavorite Garnet |
6.5 - 7.5 |
Tsavorite Garnet Information Page |
Almandine Garnet |
6.5 - 7.5 |
Almandine Garnet Information Page |
Peanut Wood |
6.5 - 7 |
|
Onyx |
6.5 - 7 |
Onyx Information Page |
Carnelian |
6.5 - 7 |
Carnelian Information Page |
Pyrope Garnet |
6.5 - 7.5 |
Pyrope Garnet Information Page |
Chalcedony |
6.5 - 7 |
Chalcedony Information Page |
Rhodolite Garnet |
6.5 - 7.5 |
Rhodolite Garnet Information Page |
Sillimanite Cat's Eye |
6.5 - 7.5 |
Sillimanite Information Page |
Andesine Labradorite |
6 - 6.5 |
Andesine Labradorite Information Page |
Star Moonstone |
6 - 6.5 |
Star Moonstone Information Page |
Prehnite |
6 - 6.5 |
Prehnite Information Page |
Labradorite |
6 - 6.5 |
Labradorite Information Page |
Rainbow Moonstone |
6 - 6.5 |
Rainbow Moonstone Information Page |
Rainbow Pyrite |
6 - 6.5 |
Rainbow Pyrite Information Page |
Sunstone |
6 - 6.5 |
Sunstone Information Page |
Moonstone |
6 - 6.5 |
Moonstone Information Page |
Sugilite |
6 - 6.5 |
Sugilite Information Page |
Clinohumite |
6 |
Clinohumite Information Page |
Maw-Sit-Sit |
6 - 7 |
Maw-sit-sit Information Page |
Cassiterite |
6 - 7 |
Cassiterite Information Page |
Kyanite |
6 - 7 |
Kyanite Information Page |
Star Sunstone |
6 - 6.5 |
Sunstone Information Page |
Jadeite |
6 - 6.5 |
Jadeite Information Page |
Nephrite Jade |
6 - 6.5 |
Nephrite Jade Information Page |
Orthoclase |
6 - 6.5 |
Orthoclase Information Page |
Amazonite |
6 - 6.5 |
Amazonite Information Page |
Cat's Eye Scapolite |
5.5 - 6 |
Cat's Eye Scapolite Information Page |
Moss Opal |
5.5 - 6.5 |
Moss Opal Information Page |
Hematite |
5.5 - 6.5 |
Hematite Information Page |
Nuummite |
5.5 - 6 |
Nuummite Information Page |
Moldavite |
5.5 |
Moldavite Information Page |
Opal Doublet |
5.5 - 6.5 |
Opal Information Page |
Fire Opal |
5.5 - 6.5 |
Fire Opal Information Page |
Rhodonite |
5.5 - 6.5 |
Rhodonite Information Page |
Scapolite |
5.5 - 6 |
Scapolite Information Page |
Boulder Opal |
5.5 - 6.5 |
Boulder Opal Information Page |
Opal |
5.5 - 6.5 |
Opal Information Page |
Sodalite |
5.5 - 6 |
Sodalite Information Page |
Hackmanite |
5.5 - 6 |
Hackmanite Information Page |
Sphene |
5 - 5.5 |
Sphene Information Page |
Lapis Lazuli |
5 - 6 |
Lapis Lazuli Information Page |
Tremolite-Hexagonite |
5 - 6 |
|
Hemimorphite |
5 |
Hemimorphite Information Page |
Star Diopside |
5 - 6 |
Chrome Diopside Information Page |
Smithsonite |
5 |
Smithsonite Information Page |
Cat's Eye Apatite |
5 |
Cat's Eye Apatite Information Page |
Turquoise |
5 - 6 |
Turquoise Information Page |
Snowflake Obsidian |
5 - 5.5 |
Obsidian Information Page |
Apatite |
5 |
Apatite Information Page |
Chrome Diopside |
5 - 6 |
Diopside Information Page |
Obsidian |
5 - 5.5 |
Obsidian Information Page |
Tashmarine Diopside |
5 - 6 |
Tashmarine Diopside Information Page |
Larimar |
4.5 - 5 |
Larimar Information Page |
Gaspeite |
4.5 - 5 |
Gaspeite Information Page |
Charoite |
4.5 - 5 |
Charoite Information Page |
Rhodochrosite |
4 |
Rhodoschrosite Information Page |
Variscite |
4 - 5 |
Variscite Information Page |
Ammolite |
4 |
Ammolite Information Page |
Fluorite |
4 |
Fluorite Information Page |
Azurite |
3.5 - 4 |
Azurite Information Page |
Malachite |
3.5 - 4 |
Malachite Information Page |
Sphalerite |
3.5 - 4 |
Sphalerite Information Page |
Calcite |
3 |
Calcite Information Page |
Coral |
3 - 4 |
Coral Information Page |
Verdite |
3 |
Verdite Information Page |
Lepidolite |
2.5 - 3 |
Lepidolite Information Page |
Pearl |
2.5 - 4.5 |
Pearl Information Page |
Chrysocolla |
2 - 4 |
Chrysocolla Information Page |
Seraphinite |
2 - 4 |
Seraphinite Information Page |
Amber |
2 - 2.5 |
Amber Information Page |