Mohs hardness 6 rocks & minerals
Mohs hardness 6 is orthoclase feldspar — the boundary where a steel knife stops working as a scratch tool. Glass usually gives way.
Showing 241–360 of 1497 rocks (page 3 of 13).
- No imageChalcedony Nodulescommonmineral · Mohs 6.5-7white, gray, blue
Charnockitecommonigneous · Mohs 6-7gray, greenish, brown
Charoiteraremineral · Mohs 5-6lavender, violet, purple
Chayesiteraremineral · Mohs 6yellow, yellow-brown
Chegemiteraremineral · Mohs 6white, colorless, pale yellow- No imageChenmingiteraremineral · Mohs 6black, gray
Cherepanoviteraremineral · Mohs 5-6pinkish-white, silver-white
Chertcommonmineral · Mohs 6.5-7white, gray, brown- No imageChert Nodulescommonmineral · Mohs 6.5-7gray, brown, black
Chesteriteraremineral · Mohs 5-6dark brown, brownish-black
Chestermaniteraremineral · Mohs 6black, brown
Chevkinite-(Ce)raremineral · Mohs 5-6black, dark brown, brownish-black
Chiastolitecommonmineral · Mohs 6.5-7.5gray, yellowish-brown, reddish-brown
Chkaloviteraremineral · Mohs 6colorless, white, gray- No imageChlorastroliteraregemstone · Mohs 5-6green, bluish-green
Chloritoidcommonmineral · Mohs 6.5dark green, gray, blackish-green- No imageChlorkyuygeniteraremineral · Mohs 5-6yellow, brown
Chlormayeniteraremineral · Mohs 6colorless, white, yellowish
Chondritecommonigneous · Mohs 5-6gray, brown, black
Chondroditeuncommonmineral · Mohs 6-6.5yellow, orange, brown
Chrome Diopsideuncommongemstone · Mohs 5.5-6.5vivid green, emerald green
Chromferideraremineral · Mohs 5-6white, silver-white
Chromio-pargasiteraremineral · Mohs 5-6emerald green, deep green
Chromitecommonmineral · Mohs 5.5black, brownish-black
Chrysolitecommonmineral · Mohs 6.5-7yellow-green, olive-green, emerald-green
Chrysopraseuncommongemstone · Mohs 6.5-7apple green, emerald green
Ciprianiiteraremineral · Mohs 5-6pink, brown, yellowish-brown- No imageClam Geodecommonfossil · Mohs 6.5-7white, gray, brown
- No imageClear Agatecommonmineral · Mohs 6.5-7colorless, white, gray
Cleavelanditecommonmineral · Mohs 6white, colorless, pale blue
Cleusoniteraremineral · Mohs 5-6black- No imageClino-ferri-holmquistiteraremineral · Mohs 5-6dark blue, blue-green, black
- No imageClino-ferro-ferri-holmquistiteraremineral · Mohs 5.5-6dark green, black, brownish-black
Clino-ferro-suenoiteraremineral · Mohs 5-6brown, yellowish-brown, gray- No imageClinoenstatiteraremineral · Mohs 5-6white, gray, colorless
- No imageClinofergusonite-(Ce)raremineral · Mohs 5.5-6.5black, brown, yellowish-brown
- No imageClinofergusonite-(Nd)raremineral · Mohs 5.5-6.5yellow, brown, black
- No imageClinofergusonite-(Y)raremineral · Mohs 5.5-6.5yellow, brown, black
Clinoferrosiliteraremineral · Mohs 5-6brown, greenish-brown, black
Clinohumiteraremineral · Mohs 6yellow, brown, orange
Clinosaffloriteraremineral · Mohs 4.5-5.5tin-white, silver-white, iron-gray
Clinozoisitecommonmineral · Mohs 6-7colorless, white, gray
Clintoniteuncommonmineral · Mohs 3.5-6yellowish-white, reddish-brown, greenish
Cobaltiteuncommonmineral · Mohs 5.5silver-white, reddish-white, gray- No imageCoccolitecommonmineral · Mohs 5.5-6.5light green, grass green, white
Coheniteraremineral · Mohs 5.5-6white, silver-white, tin-white- No imageColdwater Agatecommonmineral · Mohs 6.5-7gray, white, yellow
Columbiteuncommonmineral · Mohs 6black, brownish-black, iron-black
Columbite-(Fe)uncommonmineral · Mohs 6black, brownish-black
Columbite-(Mg)raremineral · Mohs 6black, brownish-black
Columbite-(Mn)uncommonmineral · Mohs 6black, brownish-black, reddish-brown
Columbite-Tantaliteuncommonmineral · Mohs 6black, brownish-black, brown
Columbium Oreuncommonmineral · Mohs 6black, brownish-black, iron-black
Common Opalcommonmineral · Mohs 5.5-6.5white, gray, yellow
Concretioncommonsedimentary · Mohs 3-7brown, gray, tan
Condor Agatecommonmineral · Mohs 6.5-7red, orange, yellow
Coral Fossilcommonfossil · Mohs 6.5-7white, tan, brown
Cortesognoiteraremineral · Mohs 5.5-6yellowish-brown, brown
Costibiteraremineral · Mohs 5-6silver-white, tin-white
Coulsoniteraremineral · Mohs 5.5-6.5black, dark gray
Coyamito Agateuncommonmineral · Mohs 6.5-7red, white, pink- No imageCrab Orchard Sand Stonecommonsedimentary · Mohs 6-7pink, red, buff
Crazy Lace Agatecommonmineral · Mohs 6.5-7white, gray, yellow
Crichtoniteraremineral · Mohs 5-6black- No imageCrimsoniteraremineral · Mohs 5-6red, crimson
Cristobaliteuncommonmineral · Mohs 6.5white, colorless, gray
Cryptomelanecommonmineral · Mohs 6-6.5black, gray- No imageCrystal Opalraregemstone · Mohs 5.5-6.5white, black, colorless
Cummingtoniteuncommonmineral · Mohs 5-6brown, gray, greenish-gray
Cuproiridsiteraremineral · Mohs 5.5-6gray, white- No imageCuprokalininiteraremineral · Mohs 5-6black
Cuprorhodsiteraremineral · Mohs 5-6gray, white- No imageCuprospinelraremineral · Mohs 5-6black, brownish-black
Cuspidineraremineral · Mohs 5-6red, yellow, brown
Cyprineraremineral · Mohs 6.5blue, blue-green, sky-blue
Danaliteraremineral · Mohs 5.5-6red, reddish-brown, yellow
Darapiositeraremineral · Mohs 6colorless, white, pinkish- No imageDark Gray Flintcommonmineral · Mohs 6.5-7dark gray, black, brown
Datolitecommonmineral · Mohs 5-5.5white, colorless, yellow- No imageDatolite Noduleuncommonmineral · Mohs 5-5.5white, yellow, green
Davidite-(Ce)raremineral · Mohs 6black, dark brown
Davidite-(La)raremineral · Mohs 6black, dark brown- No imageDavisiteraremineral · Mohs 6purple, violet, black
Davreuxiteraremineral · Mohs 6-7yellow, brown, pink
Davyneraremineral · Mohs 5.5-6white, colorless, yellow- No imageDecagoniteraremineral · Mohs 6silver, metallic gray
Deeriteraremineral · Mohs 6black, brownish black
Delafossiteraremineral · Mohs 5.5black, dark brown
Dellagiustaiteraremineral · Mohs 5.5-6black- No imageDemagistrisiteraremineral · Mohs 6.5-7dark brown, black
Dendritic Agatecommonmineral · Mohs 6.5-7white, colorless, gray
Dendritic Opalcommonmineral · Mohs 5.5-6.5white, cream, colorless- No imageDepmeieriteraremineral · Mohs 5-6colorless, white
- No imageDessauite-(Y)raremineral · Mohs 6-7black, brownish-black
Diabasecommonigneous · Mohs 6-7dark gray, black, greenish-gray
Diasporeuncommonmineral · Mohs 6.5-7white, gray, colorless
Dingdaohengite-(Ce)raremineral · Mohs 5-6black, brown- No imageDiniteraremineral · Mohs 6.5-7yellow, brown, greenish-yellow
Dinosaur Bonescommonfossil · Mohs 5.5-7brown, red, black
Diopsidecommonmineral · Mohs 5.5-6.5white, gray, green
Dioritecommonigneous · Mohs 6-7gray, black, white
Dissakisite-(Ce)raremineral · Mohs 6-7brown, dark brown, black- No imageDissakisite-(La)raremineral · Mohs 6-7black, brown, dark brown
Dmisteinbergiteraremineral · Mohs 6colorless, white
Dollaseite-(Ce)raremineral · Mohs 6-6.5brown, reddish-brown, dark brown
Donpeacoriteraremineral · Mohs 5-6yellow, brown, yellow-brown
Dorriteraremineral · Mohs 6black, brown- No imageDovyreniteraremineral · Mohs 5.5light brown, yellowish brown, colorless
- No imageDry Head Agateuncommonmineral · Mohs 6.5-7red, orange, yellow
Dryhead Agateuncommonmineral · Mohs 6.5-7red, orange, yellow
Dunitecommonigneous · Mohs 6.5-7yellow-green, olive-green, dark green
Dusmatoviteraremineral · Mohs 5.5-6yellow, brown, colorless- No imageDzhuluiteraremineral · Mohs 6.5-7dark brown, black
Ecandrewsiteraremineral · Mohs 5-6black
Eckermanniteraremineral · Mohs 5-6blue, blue-green, green- No imageÉcrinsiteraremineral · Mohs 5-6dark green, black, brownish-green
Eddaviditeraremineral · Mohs 6black
Edeniteuncommonmineral · Mohs 5-6green, brown, white- No imageEdgrewiteraremineral · Mohs 6colorless, white, gray
Ekaniteraremineral · Mohs 5-6green, yellow-green, brown
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