A–Z Stone Guide
Every stone in Gemdle, with photos and key identifying properties. 143 crystals, rocks and gemstones and counting.
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Agate
Mohs 6.5–7
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Alexandrite
Mohs 8.5
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Almandine
Mohs 7.0–7.5
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Amazonite
Mohs 6.0–6.5
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Amber
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Amethyst
Mohs 7 (lower in impure varieties)
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Ametrine
Mohs 7
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Andalusite
Mohs 6.5–7.5
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Angelite
Mohs 3.5
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Apatite
Mohs 5 (defining mineral)
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Apophyllite
Mohs 4.5–5
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Aquamarine
Mohs 7.5–8.0
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Aquamarine Beryl
Mohs 7.5–8.0
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Aragonite
Mohs 3.5–4
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Aventurine
Mohs 7 – lower in impure varieties (defining mineral)
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Axinite
Mohs 6.0–7.5
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Azurite
Mohs 3.5 to 4
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Barite
Mohs 3–3.5
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Basalt
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Bismuth
- 💎 Bloodstone Mohs 6–7
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Bronzite
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Calcite
Mohs 3 (defining mineral)
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Carnelian
Mohs 6.5–7.0
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Cavansite
Mohs 3 - 4
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Celestine
Mohs 3.0–3.5
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Chalcedony
Mohs 6–7
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Chalcopyrite
Mohs 3.5–4
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Charoite
Mohs 5 - 6
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Chrysoberyl
Mohs 8.5
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Chrysocolla
Mohs 2.5–3.5 (7 for chrysocolla chalcedony, high-silica content)
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Chrysoprase
Mohs 6.0–7.0
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Cinnabar
Mohs 2.0–2.5
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Citrine
Mohs 7
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Clear Quartz
Mohs 7 – lower in impure varieties (defining mineral)
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Crocoite
Mohs 2.5–3
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Cuprite
Mohs 3.5 to 4
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Danburite
Mohs 7 – 7.5
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Datolite
Mohs 5 to 5.5
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Diamond
Mohs 10 (defining mineral)
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Diopside
Mohs 5.5–6.5
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Dumortierite
Mohs 7–8.5
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Emerald
Mohs 7.5–8
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Epidote
Mohs 6–7
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Eudialyte
Mohs 5–6
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Fire Opal
Mohs 5.5–6
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Fluorite
Mohs 4 (defining mineral)
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Fuchsite
Mohs 2.5
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Galena
Mohs 2.5–2.75
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Garnet
Mohs 6.5–7.5
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Goshenite
Mohs 7.5–8.0
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Gypsum
Mohs 1.5–2 (defining mineral for 2)
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Heliodor
Mohs 7.5–8.0
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Hematite
Mohs 5.5–6.5
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Hemimorphite
Mohs 4.5–5
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Hiddenite
Mohs 6.5–7
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Howlite
Mohs 3.5
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Hypersthene
Mohs 5.5–6
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Iolite
Mohs 7–7.5
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Iron Meteorite
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Jade
Mohs 6–7
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Jadeite
Mohs 6.5–7
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Jasper
Mohs 6.5–7
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Jet
Mohs 2.5–4.0
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Kunzite
Mohs 6.5–7
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Kyanite
Mohs 4.5–5 parallel to one axis 6.5–7 perpendicular to that axis
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Labradorite
Mohs 6–6.5
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Lapis Lazuli
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Larimar
Mohs 4.5 - 5
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Larvikite
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Lepidolite
Mohs 2.5–3
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Magnesite
Mohs 3.5–4.5
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Magnetite
Mohs 5.5–6.5
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Malachite
Mohs 3.5–4
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Marcasite
Mohs 6–6.5
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Milky Quartz
Mohs 7 – lower in impure varieties (defining mineral)
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Moissanite
Mohs ~9.5
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Moldavite
Mohs 5.5
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Molybdenite
Mohs 1–1.5
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Moonstone
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Morganite
Mohs 7.5 to 8}}
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Moss Agate
Mohs 6–7
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Nephrite
Mohs 6.0 to 6.5
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Nuummite
Mohs 5.5 - 6.0
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Obsidian
Mohs 5–6
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Okenite
Mohs –5
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Onyx
Mohs 6.5–7
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Opal
Mohs 5.5–6
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Orpiment
Mohs 1.5–2
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Pearl
Mohs 2.5–4.5
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Peridot
Mohs 6.5–7
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Petalite
Mohs 6–6.5
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Petrified Wood
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Pietersite
Mohs 7
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Prasiolite
Mohs 7 – lower in impure varieties
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Prehnite
Mohs 6–6.5
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Purpurite
Mohs 4–5
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Pyrite
Mohs 6–6.5
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Realgar
Mohs 1.5–2
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Red Coral
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Rhodochrosite
Mohs 3.5–4
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Rhodonite
Mohs 5.5–6.5
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Rhyolite
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Rose Quartz
Mohs 7
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Ruby
Mohs 9.0
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Sapphire
Mohs 9.0
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Sardonyx
Mohs 6.5–7
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Scapolite
Mohs 5.5–6
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Schorl
Mohs 7.0–7.5
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Scolecite
Mohs 5 to
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Selenite
Mohs 2
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Serpentine
Mohs 2.5–6 (original) 3.5–4.0 (antigorite) 2.5 (lizardite) 2.5–3.0 (chrysotile)
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Shungite
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Smithsonite
Mohs 4.5
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Smoky Quartz
Mohs 7 – lower in impure varieties (defining mineral)
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Snowflake Obsidian
Mohs 5–6
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Sodalite
Mohs 5.5–6
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Spessartine
Mohs 6.5 – 7.5
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Sphalerite
Mohs 3.5–4
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Spinel
Mohs 7.5–8.0
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Staurolite
Mohs 7 – 7.5
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Stichtite
Mohs 1.5–2
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Stilbite
Mohs to 4
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Sugilite
Mohs 6–
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Sulfur
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Sunstone
Mohs 6.0–6.5
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Tanzanite
Mohs 6.5
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Tektite
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Thulite
Mohs 6.5
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Tiger's Eye
Mohs 6.5–7
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Topaz
Mohs 8 (defining mineral)
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Tourmaline
Mohs 7.0–7.5
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Tsavorite
Mohs 7.0–7.5
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Turquoise
Mohs 5–6
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Ulexite
Mohs 2.5
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Unakite
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Vanadinite
Mohs 3–4
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Variscite
Mohs 4.5
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Vesuvianite
Mohs 6–7
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Vivianite
Mohs 1.5–2
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Watermelon Tourmaline
Mohs 7.0–7.5
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Wulfenite
Mohs 3
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Zircon
Mohs 7.5