Mohs hardness 7 rocks & minerals
Mohs hardness 7 is quartz — the practical line between rocks that scratch glass easily and rocks that don't. Most gem-grade silicates start here.
Showing 481–600 of 778 rocks (page 5 of 7).
Monzonitecommonigneous · Mohs 6-7gray, light gray, pinkish gray- No imageMookaitecommonmineral · Mohs 6.5-7red, yellow, cream
Moqui Marblescommonmineral · Mohs 5.5-6.5brown, reddish-brown, black
Morganiteuncommongemstone · Mohs 7.5-8pink, peach, rose-pink- No imageMorimotoiteraremineral · Mohs 6.5-7black, brownish black
Morrisonitecommonmineral · Mohs 6.5-7pink, tan, orange
Moss Agatecommonmineral · Mohs 6.5-7white, green, brown- No imageMoss Opalcommonmineral · Mohs 5.5-6.5white, clear, green
Mozarkitecommonmineral · Mohs 6.5-7red, pink, white
Mozartiteraremineral · Mohs 6-6.5red, brown, orange
Mtoroliteuncommonmineral · Mohs 6.5-7apple green, dark green- No imageMukhiniteraremineral · Mohs 6-7dark green, brownish green
Mulliteuncommonmineral · Mohs 6-7white, gray, colorless
Mylonitecommonmetamorphic · Mohs 5-7gray, black, white
Narsarsukiteraremineral · Mohs 7yellow, yellow-brown, brown
Natalyiteraremineral · Mohs 6-7emerald-green
Native Iridiumraremineral · Mohs 6.5silver-white, tin-white, gray- No imageNative Osmiumraremineral · Mohs 7silver-white, bluish-white, gray
- No imageNative Rutheniumraremineral · Mohs 6.5white, silver-white, gray
- No imageNative Siliconraremineral · Mohs 7gray, blue-gray, black
Nephritecommonmineral · Mohs 6-6.5green, white, yellow
Nephrite Jadecommonmineral · Mohs 6-6.5green, white, yellow- No imageNiigataiteraremineral · Mohs 6-7pink, reddish-pink
- No imageNikmelnikoviteraremineral · Mohs 6.5-7dark brown, black
- No imageNioboholtiteraremineral · Mohs 7-8brown, yellowish-brown
- No imageNodules Filled With Opalcommonfossil · Mohs 5.5-6.5white, gray, brown
Norbergiteraremineral · Mohs 6-6.5yellow, orange, brown
Novaculitecommonsedimentary · Mohs 7white, gray, black
Nsutiteuncommonmineral · Mohs 6-6.5dark gray, black- No imageOchoco Jaspercommonfossil · Mohs 6.5-7red, orange, brown
- No imageOkieitecommonmineral · Mohs 6.5-7yellow, brown, orange
Oleniteraremineral · Mohs 7-7.5pink, colorless, white
Oligoclasecommonmineral · Mohs 6-6.5white, colorless, gray
Olivinecommonmineral · Mohs 6.5-7olive green, yellow-green, brownish green- No imageOmineliteraremineral · Mohs 7.5dark blue, blue-green
Onyxcommonmineral · Mohs 6.5-7black, white, banded- No imageOolitic Agatescommonmineral · Mohs 6.5-7white, gray, brown
Opalcommonmineral · Mohs 5.5-6.5white, black, colorless- No imageOpal-quartzcommonmineral · Mohs 6.5-7white, gray, brown
Opalitecommonmineral · Mohs 5.5-6.5white, blue, milky
Opalized Woodcommonfossil · Mohs 5.5-6.5brown, red, yellow- No imageOrange Agatecommonmineral · Mohs 6.5-7orange, red-orange, yellow-orange
- No imageOrange Zirconuncommongemstone · Mohs 7.5orange, reddish-orange, brownish-orange
Orbicular Jaspercommonmineral · Mohs 6.5-7green, yellow, brown
Ordoñeziteraremineral · Mohs 6-6.5yellowish brown, brown, dark brown
Oregon Jadecommonmineral · Mohs 6.5-7green, olive-green, dark green
Oregon Sunstoneuncommongemstone · Mohs 6-6.5yellow, red, green- No imageOsumilite-(Mg)raremineral · Mohs 7colorless, pale blue, blue-gray
Ottreliteuncommonmineral · Mohs 6.5dark green, black, gray-green
Ottréliteuncommonmineral · Mohs 6.5dark gray, dark green, black- No imageOwyhee Jaspercommonmineral · Mohs 6.5-7blue, brown, cream
- No imageOwyhee Thundereggcommonmineral · Mohs 6.5-7blue, purple, white
- No imageOxy-chromium-draviteraremineral · Mohs 7dark green, emerald green
- No imageOxy-draviteraremineral · Mohs 7dark brown, reddish-brown, black
- No imageOxy-schorlraremineral · Mohs 7black, brownish-black
Oxy-vanadium-draviteraremineral · Mohs 7dark brown, black, dark yellow-brown
Palenzonaiteraremineral · Mohs 6-6.5orange, reddish-orange
Paraiba Tourmalineraregemstone · Mohs 7-7.5neon blue, neon green, violet- No imagePecos Diamondscommonmineral · Mohs 7clear, colorless, red
Pegmatitecommonigneous · Mohs 6-7white, gray, pink- No imagePerbøeite-(Ce)raremineral · Mohs 6-7dark brown, black
- No imagePerbøeite-(La)raremineral · Mohs 6-7black, dark brown
Perettiite-(Y)raremineral · Mohs 6-7dark brown, black
Peridotcommongemstone · Mohs 6.5-7olive-green, yellow-green, lime-green
Peridotitecommonigneous · Mohs 6-7dark green, olive green, yellow-green- No imagePertlikiteraremineral · Mohs 7-7.5yellow, brown
- No imagePeruvian Blue Opaluncommongemstone · Mohs 5.5-6.5blue, teal, blue-green
Petaliteuncommonmineral · Mohs 6-6.5colorless, white, gray
Petrified Algaecommonfossil · Mohs 6.5-7tan, brown, gray- No imagePetrified Coralcommonfossil · Mohs 6.5-7white, gray, brown
Petrified Cycaduncommonfossil · Mohs 6.5-7brown, tan, black
Petrified Dinosaur Boneuncommonfossil · Mohs 6.5-7red, brown, yellow
Petrified Palmcommonfossil · Mohs 6.5-7brown, tan, black
Petrified Palm Woodcommonfossil · Mohs 6.5-7tan, brown, black
Petrified Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Phantom Quartzcommonmineral · Mohs 7colorless, white, gray
Phenakiteraremineral · Mohs 7.5-8colorless, white, yellow
Philippinitecommonmineral · Mohs 5.5-6.5black, dark brown
Picture Jaspercommonmineral · Mohs 6.5-7brown, tan, cream- No imagePiedmontiteuncommonmineral · Mohs 6-7red, reddish-brown, pink
Piemontiteuncommonmineral · Mohs 6-6.5red, reddish-brown, pink
Piemontite-(Pb)raremineral · Mohs 6-6.5red, reddish-brown, dark red
Piemontite-(Sr)raremineral · Mohs 6-7red, reddish-brown, dark red
Pietersiteuncommonmineral · Mohs 6.5-7blue, gold, brown- No imagePilawite-(Y)raremineral · Mohs 6.5-7black, brownish-black
- No imagePink Agatecommonmineral · Mohs 6.5-7pink, rose, salmon
- No imagePink Beryluncommongemstone · Mohs 7.5-8pink, peach, magenta
- No imagePink Chalcedonyuncommonmineral · Mohs 6.5-7pink, rose, light pink
- No imagePink Dumortieriteraremineral · Mohs 7-8.5pink, reddish-pink, violet-pink
- No imagePink Garnetuncommonmineral · Mohs 6.5-7.5pink, purplish-pink, rose-red
- No imagePink Opalcommonmineral · Mohs 5.5-6.5pink, rose-pink
Pink Rhodonitecommonmineral · Mohs 5.5-6.5pink, reddish-pink, brown- No imagePink Tourmalineuncommongemstone · Mohs 7-7.5pink, magenta, rose
Plagioclasecommonmineral · Mohs 6-6.5white, gray, colorless
Plume Agatecommonmineral · Mohs 6.5-7white, gray, brown
Polluciteuncommonmineral · Mohs 6.5colorless, white, gray- No imagePompom Agatecommonmineral · Mohs 6.5-7white, gray, brown
- No imagePoppiiteraremineral · Mohs 6.5-7dark brown, brownish-red
Poppy Jaspercommonmineral · Mohs 6.5-7red, yellow, brown
Povondraiteraremineral · Mohs 6.5-7black, dark brown
Prairie Agatecommonmineral · Mohs 6.5-7yellow, brown, orange
Praseuncommonmineral · Mohs 7leek-green, olive-green
Precious Opalraregemstone · Mohs 5.5-6.5white, black, blue
Prehnitecommonmineral · Mohs 6-6.5green, yellow-green, white- No imagePriday Plume Agatecommonmineral · Mohs 6.5-7red, pink, white
Priday Thundereggcommonfossil · Mohs 6.5-7red, brown, white
Prismatineraremineral · Mohs 6.5-7green, brown, blue- No imageProtozoa Agateuncommonfossil · Mohs 6.5-7brown, red, yellow
- No imageProxidecagoniteraremineral · Mohs 6-7silver, gray
- No imagePseudosinhaliteraremineral · Mohs 6.5colorless, white, pale yellow
- No imagePurple Agatecommonmineral · Mohs 6.5-7purple, violet, lavender
- No imagePurple Garnetraregemstone · Mohs 6.5-7.5purple, violet, reddish-purple
Pyritecommonmineral · Mohs 6-6.5brass-yellow, pale-gold- No imagePyrite Concretionsuncommonmineral · Mohs 6-6.5brass-yellow
Pyrite Cubescommonmineral · Mohs 6-6.5brass-yellow, gold
Pyrolusitecommonmineral · Mohs 6-6.5black, bluish-black, dark gray
Pyropecommonmineral · Mohs 7-7.5red, purplish-red, orangey-red- No imagePyrope Garnetcommongemstone · Mohs 7-7.5deep red, purplish-red, reddish-orange
Pyroxenitecommonigneous · Mohs 5-7dark green, brown, black
Quartzcommonmineral · Mohs 7colorless, white, gray
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