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 241–360 of 778 rocks (page 3 of 7).
Fayaliteuncommonmineral · Mohs 6.5-7yellow, yellow-green, brown- No imageFengchengiteraremineral · Mohs 6.5-7.5yellow, brown, reddish-brown
- No imageFergusonite-(Ce)raremineral · Mohs 5.5-6.5brown, black, yellow
Fergusonite-(Y)raremineral · Mohs 5.5-6.5black, brownish-black, yellowish-brown
Ferriakasakaite-(Ce)raremineral · Mohs 6-6.5black, brown
Ferriakasakaite-(La)raremineral · Mohs 6-7black, brownish-black
Ferriallanite-(Ce)raremineral · Mohs 6-6.5black, brown
Ferriandrosite-(Ce)raremineral · Mohs 6-6.5black, brownish-black
Ferriandrosite-(La)raremineral · Mohs 6-6.5black, dark brown
Ferricoronaditeraremineral · Mohs 6-7black, brownish-black- No imageFerriperbøeite-(Ce)raremineral · Mohs 6-6.5black, dark brown
- No imageFerriperbøeite-(La)raremineral · Mohs 6-7black, brown
Ferro-glaucophaneraremineral · Mohs 6-6.5blue, blue-black, lavender
Ferroindialiteraremineral · Mohs 7-7.5blue, colorless, gray
Feruviteraremineral · Mohs 7-7.5black, brown- No imageFibrolitecommonmineral · Mohs 6.5-7.5white, colorless, gray
Fire Agateuncommongemstone · Mohs 6.5-7red, brown, orange
Fire Opaluncommongemstone · Mohs 5.5-6.5red, orange, yellow
Flintcommonmineral · Mohs 7gray, black, brown- No imageFlint Nodulescommonmineral · Mohs 7gray, black, brown
- No imageFlower Jaspercommonmineral · Mohs 6.5-7pink, white, red
- No imageFluor-buergeriteraremineral · Mohs 7brown, dark brown
Fluor-draviteraremineral · Mohs 7-7.5brown, yellow-brown, dark brown
Fluor-elbaiteraremineral · Mohs 7-7.5pink, red, green
Fluor-liddicoatiteraremineral · Mohs 7-7.5multicolored, pink, green
Fluor-schorluncommonmineral · Mohs 7-7.5black, brownish-black- No imageFluor-tsilaisiteraremineral · Mohs 7yellow, yellow-green
Fluor-uviteuncommonmineral · Mohs 7brown, yellow-brown, dark green- No imageFluoro-pedriziteraremineral · Mohs 7green, blue, violet
- No imageFluorvesuvianiteraremineral · Mohs 6.5brown, yellow-brown, greenish-brown
Foititeraremineral · Mohs 7dark blue, black, violet-blue
Foorditeraremineral · Mohs 6-6.5black, brownish-black
Formanite-(Y)raremineral · Mohs 5.5-6.5yellow, brown, reddish-brown
Forsteritecommonmineral · Mohs 6.5-7green, yellow-green, colorless- No imageFort Payne Chertcommonmineral · Mohs 6.5-7white, gray, brown
Fossil Coralcommonfossil · Mohs 6.5-7white, tan, brown- No imageFossilized Coralcommonfossil · Mohs 6.5-7white, gray, brown
- No imageFossilized Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Fossilscommonfossil · Mohs 3-7brown, gray, white
Fowleriteraremineral · Mohs 5.5-6.5pink, reddish-pink, brownish-pink
Frankliniteuncommonmineral · Mohs 5.5-6.5black, brownish-black
Fulguriteuncommonmineral · Mohs 6.5-7white, gray, tan
Gabbrocommonigneous · Mohs 6-7black, dark green, dark gray
Gadolinite-(Ce)raremineral · Mohs 6.5-7black, brownish-black, greenish-black
Gadolinite-(Y)raremineral · Mohs 6.5-7black, brownish-black, greenish-black
Gahniteuncommonmineral · Mohs 7.5-8dark green, blue-green, yellow
Galaxiteraremineral · Mohs 7.5black, brownish-black, reddish-brown
Garnetcommonmineral · Mohs 6.5-7.5red, green, yellow
Garnet Schistcommonmetamorphic · Mohs 3-7gray, brown, silver- No imageGatewayitecommonmineral · Mohs 7white, gray, brown
- No imageGemstonesuncommongemstone · Mohs 1-10various
Genthelviteraremineral · Mohs 6-6.5pink, red, yellow
Geodecommonsedimentary · Mohs 7white, gray, brown
Gneisscommonmetamorphic · Mohs 5-7white, gray, pink- No imageGold Quartzcommonmineral · Mohs 7white, gray, yellow
- No imageGold Sulfidescommonmineral · Mohs 6-6.5pale brass-yellow
- No imageGold-laced Jadeuncommonmineral · Mohs 6-6.5white, green, yellow
Golden Beryluncommongemstone · Mohs 7.5-8yellow, golden yellow, yellow-green- No imageGolden Jaspercommonmineral · Mohs 6.5-7yellow, gold, brown
Goldmaniteraremineral · Mohs 6.5-7dark green, brownish green, black
Goshenitecommongemstone · Mohs 7.5-8colorless, white- No imageGrandaiteraremineral · Mohs 6.5-7.5brown, reddish-brown
Grandidieriteraremineral · Mohs 7.5blue-green, bluish-green, green
Granitecommonigneous · Mohs 6-7white, gray, pink
Granitic Pegmatitecommonigneous · Mohs 6-7white, pink, gray
Granodioritecommonigneous · Mohs 6-7gray, white, black
Grape Agatecommonmineral · Mohs 6.5-7purple, violet, lavender
Graphic Granitecommonigneous · Mohs 6-7white, gray, pink- No imageGray Agatecommonmineral · Mohs 6.5-7gray, gray, white
- No imageGreen Agatecommonmineral · Mohs 6.5-7green, light green, dark green
- No imageGreen Aventurinecommonmineral · Mohs 6.5-7green, light green, dark green
- No imageGreen Beryluncommongemstone · Mohs 7.5-8green, yellowish-green, bluish-green
- No imageGreen Elbaite Tourmalinecommongemstone · Mohs 7-7.5green, yellow-green, blue-green
Green Garnetraregemstone · Mohs 6.5-7.5green, yellow-green, emerald-green
Green Quartzuncommongemstone · Mohs 7green, leek-green, yellow-green
Green Quartzitecommonmetamorphic · Mohs 7green, light green, pale green
Green Tourmalinecommongemstone · Mohs 7-7.5green, yellow-green, blue-green
Greywackecommonsedimentary · Mohs 6-7gray, dark gray, brownish gray- No imageGrossmaniteraremineral · Mohs 6-7dark green, black
Grossularcommonmineral · Mohs 6.5-7.5green, brown, yellow- No imageGrossular Garnetcommonmineral · Mohs 6.5-7.5green, yellow, orange
Grossularite Garnetcommonmineral · Mohs 6.5-7.5green, yellow, brown
Hafnonraremineral · Mohs 7.5colorless, brown, yellow- No imageHalamishitecommonmineral · Mohs 7white, gray, brown
Hambergiteraremineral · Mohs 7.5colorless, white, gray
Hancockiteraremineral · Mohs 6-7reddish-brown, brown, black
Hawk's Eyecommonmineral · Mohs 7blue, blue-gray, blue-green- No imageHeliotrope Bauxitecommonmineral · Mohs 6.5-7dark green, red
Helvineuncommonmineral · Mohs 6-6.5yellow, yellowish-brown, reddish-brown
Hematitecommonmineral · Mohs 5.5-6.5steel-gray, black, reddish-brown
Hennomartiniteraremineral · Mohs 6-6.5pink, brown
Hercyniteuncommonmineral · Mohs 7.5-8black, dark green
Herkimer Diamondcommonmineral · Mohs 7colorless, smoky
Hiboniteraremineral · Mohs 7.5-8black, brown, reddish-brown
Hiddeniteraregemstone · Mohs 6.5-7yellowish-green, emerald-green
Hingganite-(Ce)raremineral · Mohs 6.5-7yellowish-brown, brown, greenish-brown- No imageHingganite-(Nd)raremineral · Mohs 6.5-7yellowish-brown, brown, black
Hingganite-(Y)raremineral · Mohs 6.5-7yellow, yellowish-green, brown- No imageHingganite-(Yb)raremineral · Mohs 6.5-7colorless, white, pale yellow
Holley Blue Agateraremineral · Mohs 6.5-7blue, violet, lavender
Holtiteraremineral · Mohs 7-8yellow, brown, tan- No imageHoltstamiteraremineral · Mohs 7yellowish-brown, brown
- No imageHongheiteraremineral · Mohs 6.5dark brown, black, reddish-brown
Hornfelscommonmetamorphic · Mohs 5-7gray, dark gray, black- No imageHorse Mountain Agateuncommonfossil · Mohs 6.5-7red, orange, yellow
Humiteuncommonmineral · Mohs 6-6.5yellow, brown, orange- No imageHutcheoniteraremineral · Mohs 7black, brown
Hyalitecommonmineral · Mohs 5.5-6.5colorless, white, yellowish
Hyalite Opaluncommonmineral · Mohs 5.5-6.5colorless, white, yellowish- No imageHyalite Opal Geodeuncommonmineral · Mohs 5.5-6.5colorless, white, yellow
- No imageHydroxylchondroditeraremineral · Mohs 6-6.5yellow, brown, orange
- No imageHydroxyledgrewiteraremineral · Mohs 6.5white, colorless, pale yellow
Idocrasecommonmineral · Mohs 6.5green, brown, yellow
Ignimbritecommonigneous · Mohs 5-7gray, white, pink
Impactiteuncommonsedimentary · Mohs 5-7black, brown, green- No imageImperial Jaspercommonmineral · Mohs 6.5-7red, green, yellow
Indialiteraremineral · Mohs 7-7.5blue, colorless
Indicoliteuncommongemstone · Mohs 7-7.5blue, indigo, blue-green- No imageIndigo Gabbrocommonigneous · Mohs 6-7black, dark purple, gray
Indochinitecommonmineral · Mohs 5.5-6.5black, brown
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