Stella's passion for natural colored gemstones

Feb 27

In gemology, pearl hardness is measured on a scale known as the Mohs scale, which allocates minerals a worth between 1 (mildest) and 10 (hardest). This scale was concocted by a German mineralogist, Frederick Mohs, in 1822. It characterizes hardness as far as scratch safety, where a harder mineral will scratch a gentler one, however not the other way around.

Gems with a hardness rating of 1-2 are viewed as delicate, while those in the scope of 3-5 are medium hard. Gems more than 6 are viewed as hard and hence suitable for jewelry.

The shine of gems with a Mohs hardness of under 7 can be harmed by normal dust, which contains minor particles of quartz (hardness 7). Along these lines milder stones need to be worn and put away precisely, and repolished occasionally to keep up their gloss.

This outlined diagram shows hardness evaluations for 151 regular gemstone mixtures. It is the most finish and exact hardness scale for gemstones accessible on the web, and incorporates numerous uncommon assortments.

Natural Diamond Diamond 10
Natural Ruby Ruby 9
Star Ruby Star Ruby 9
Sapphire Sapphire 9
Star Sapphire Star Sapphire 9
Color Change Alexandrite Alexandrite 8.5
Alexandite Cat's Eye Alexandrite Cat’s Eye 8.5
Chrysoberyl Chrysoberyl 8.5
Chrysoberyl Cat's Eye Chrysoberyl Cat’s Eye 8.5
Vanadium Chrysoberyl Vanadium Chrysoberyl 8.5
Taaffeite Taaffeite 8-8.5
Spinel Spinel 8
Topaz Topaz 8
Imperial Topaz Imperial Topaz  8
Pezzotaite Pezzotaite 8
Emerald Emerald 7.5-8
Enstatite Enstatite 7.5-8
Aquamarine Aquamarine 7.5-8
Morganite Morganite 7.5-8
Goshenite Beryl Goshenite Beryl 7.5-8
Golden Beryl Golden Beryl 7.5-8
Painite Painite 7.5-8
Phenakite Phenakite 7.5-8
Red Beryl Red Beryl (Bixbite) 7.5-8
Andalusite Andalusite 7.5
Euclase Euclase 7.5
Hambergite Hambergite 7.5
Dumortierite Dumortierite 7-8.5
Almandine Garnet Almandine Garnet 7-7.5
Danburite Danburite 7-7.5
Iolite Iolite 7-7.5
Pyrope Garnet Pyrope Garnet 7-7.5
Spessartite Garnet Spessartite Garnet 7-7.5
Rhodolite Garnet Rhodolite Garnet 7-7.5
Color Change Garnet Color-Change Garnet 7-7.5
Chrome Tourmaline Chrome Tourmaline 7-7.5
Malaia Garnet Malaia Garnet 7-7.5
Paraiba Tourmaline Paraiba Tourmaline 7-7.5
Rubellite Tourmaline Rubellite Tourmaline 7-7.5
Tourmaline Tourmaline 7-7.5
Uvarovite Garnet Uvarovite Garnet 7-7.5
Amethyst Amethyst 7
Aventurine Aventurine 7
Ametrine Ametrine 7
Citrine Citrine 7
Gem Silica Gem Silica 7
Kornerupine Kornerupine 7
Rock Crystal Rock Crystal 7
Rose Quartz Rose Quartz 7
Smoky Quartz Smoky Quartz 7
Jeremejevite Jeremejevite 6.5-7.5
Sillimanite Sillimanite 6.5-7.5
Zircon Zircon 6.5-7.5
Agate Agate 6.5-7
Axinite Axinite 6.5-7
Bloodstone Bloodstone 6.5-7
Carnelian Carnelian 6.5-7
Chalcedony Chalcedony 6.5-7
Chrome Chalcedony Chrome Chalcedony 6.5-7
Chrysoprase Chrysopase 6.5-7
Demantoid Garnet Demantoid Garnet 6.5-7
Diaspore Diaspore 6.5-7
Grossular Garnet Grossular Garnet 6.5-7
Hessonite Garnet Hessonite Garnet 6.5-7
Hiddenite Hiddenite 6.5-7
Jadeite Jade Jadeite Jade 6.5-7
Jasper Jasper 6.5-7
Mali Garnet Mali Garnet 6.5-7
Kunzite Kunzite 6.5-7
Leuco Garnet Leuco Garnet 6.5-7
Onyx Onyx 6.5-7
Peridot Peridot 6.5-7
Serendibite Serendibite 6.5-7
Sinhalite Sinhalite 6.5-7
Spodumene Spodumene 6.5-7
Tanzanite Tanzanite 6.5-7
Tsavorite Garnet Tsavorite Garnet 6.5-7
Idocrase (Vesuvianite) Idocrase (Vesuvianite) 6.5
Cassiterite Cassiterite 6-7
Epidote Epidote 6-7
Maw-Sit-Sit Maw-Sit-Sit 6-7
Unakite Unakite 6-7
Amazonite Amazonite 6-6.5
Andesine Andesine 6-6.5
Oligoclase Oligoclase 6-6.5
Benitoite Benitoite 6-6.5
Labradorite Labradorite 6-6.5
Moonstone Moonstone 6-6.5
Nephrite Jade Nephrite Jade 6-6.5
Orthoclase Orthoclase 6-6.5
Petalite Petalite 6-6.5
Prehnite Prehnite 6-6.5
Scheelite Scheelite 6-6.5
Sugilite Sugilite 6-6.5
Sunstone Sunstone 6-6.5
Zoisite Zoisite 6-6.5
Amblygonite Amblygonite 6
Clinohumite Clinohumite 6
Hematite Hematite 5.5-6.5
Mexican Fire Opal Mexican Fire Opal 5.5-6.5
Opal Opal 5.5-6.5
Rhodonite Rhodonite 5.5-6.5
Actinolite Actinolite 5.5-6
Azurite Azurite 5.5-6
Hackmanite Hackmanite 5.5-6
Hauyne Hauyne 5.5-6
Scapolite Scapolite 5.5-6
Sodalite Sodalite 5.5-6
Moldavite Moldavite 5.5
Diopside Diopside 5-6
Chrome Diopside Chrome Diopside 5-6
Lapis Lazuli Lapis Lazuli 5-6
Poudretteite Poudretteite 5-6
Turquoise Turquoise 5-6
Brazilianite Brazilianite 5.5
Datolite Datolite 5-5.5
Eudialyte Eudialyte 5-5.5
Obsidian Obsidian 5-5.5
Sphene (Titanite) Sphene (Titanite) 5-5.5
Apatite Apatite 5
Cat's Eye Apatite Cat’s Eye Apatite 5
Dioptase Dioptase 5
Hemimorphite Hemimorphite 5
Smithsonite Smithsonite 5
Charoite Charoite 4.5-5
Gaspeite Gaspeite 4.5-5
Larimar Larimar 4.5-5
Kyanite Kyanite 4-7
Bastnasite Bastnasite 4-5
Carletonite Carletonite 4-4.5
Ammolite Ammolite (Korite) 4
Fluorite Fluorite 4
Rhodochrosite Rhodochrosite 4
Williamsite Williamsite 4
Aragonite Aragonite 3.5-4
Azurite Azurite 3.5-4
Cuprite Cuprite 3.5-4
Malachite Malachite 3.5-4
Sphalerite Sphalerite 3.5-4
Coral Coral 3-4
Celestine Celestine 3-3.5
Cerussite Cerussite 3-3.5
Howlite Howlite 3-3.5
Calcite Calcite  3
Pearl Pearl  2.5-4.5
Jet Jet 2.5-4
Lepidolite Lepidolite 2.5-3
Chrysocolla Chrysocolla 2-4
Amber Amber  2-2.5
Cinnabar Cinnabar 2-2.5
Ulexite Ulexite

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