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 121–240 of 778 rocks (page 2 of 7).
- No imageBubblegum Agatecommonmineral · Mohs 6.5-7pink, white, translucent-pink
Bumblebee Jasperuncommonfossil · Mohs 6-7yellow, orange, black- No imageBurnettiteraremineral · Mohs 6-7dark blue, blue-black
Bustamiteuncommonmineral · Mohs 5.5-6.5pink, reddish-pink, brownish-pink
Bytowniteuncommonmineral · Mohs 6-6.5white, gray, yellowish
Cactus Quartzuncommonmineral · Mohs 7purple, white, yellow
Calciboriteraremineral · Mohs 6.5colorless, white, gray
Calderiteraremineral · Mohs 7-7.5reddish-brown, brown, orange-brown- No imageCalifornia Jadeuncommonmineral · Mohs 6.5green, yellow-green, white
- No imageCaliforniteuncommonmineral · Mohs 6.5green, yellow-green, white
- No imageCantera Opalcommongemstone · Mohs 5.5-6.5orange, red, yellow
Cape May Diamondcommonmineral · Mohs 7colorless
Cappelenite-(Y)raremineral · Mohs 6.5greenish-brown, brown, yellowish-brown- No imageCarmichaeliteraremineral · Mohs 6.5-7brown, reddish-brown, black
Carneliancommonmineral · Mohs 6.5-7red, red-orange, brownish-red
Cassiteritecommonmineral · Mohs 6-7black, brown, reddish-brown
Cat's Eye Quartzuncommongemstone · Mohs 7gray, yellow, green- No imageCayalsite-(Y)raremineral · Mohs 6.5black, brownish-black, brown
Cerianite-(Ce)raremineral · Mohs 6.5yellow, yellowish-brown, grayish-white
Chalcedonycommonmineral · Mohs 6.5-7white, gray, blue- No imageChalcedony Geodecommonmineral · Mohs 6.5-7white, gray, blue
- No imageChalcedony Nodulescommonmineral · Mohs 6.5-7white, gray, blue
Chambersiteraremineral · Mohs 7violet, purple, dark brown
Charnockitecommonigneous · Mohs 6-7gray, greenish, brown
Chertcommonmineral · Mohs 6.5-7white, gray, brown- No imageChert Nodulescommonmineral · Mohs 6.5-7gray, brown, black
- No imageChevron Amethystcommongemstone · Mohs 7purple, white, violet
Chiastolitecommonmineral · Mohs 6.5-7.5gray, yellowish-brown, reddish-brown
Chibaiteraremineral · Mohs 7colorless, white- No imageChihuahuaiteraremineral · Mohs 7-7.5yellow, yellow-green
Chloritoidcommonmineral · Mohs 6.5dark green, gray, blackish-green
Chondroditeuncommonmineral · Mohs 6-6.5yellow, orange, brown
Chrome Diopsideuncommongemstone · Mohs 5.5-6.5vivid green, emerald green- No imageChromium-draviteraremineral · Mohs 7-7.5emerald green, deep green
Chromo-alumino-povondraiteraremineral · Mohs 7dark brown, black
Chrysolitecommonmineral · Mohs 6.5-7yellow-green, olive-green, emerald-green
Chrysopraseuncommongemstone · Mohs 6.5-7apple green, emerald green
Citrinecommongemstone · Mohs 7yellow, golden-yellow, amber
Citrine Geodecommongemstone · Mohs 7yellow, orange, brownish-yellow- No imageClam Geodecommonfossil · Mohs 6.5-7white, gray, brown
- No imageClear Agatecommonmineral · Mohs 6.5-7colorless, white, gray
- No imageClear Quartzcommonmineral · Mohs 7colorless, white
- 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
Clinozoisitecommonmineral · Mohs 6-7colorless, white, gray- No imageCoccolitecommonmineral · Mohs 5.5-6.5light green, grass green, white
- No imageCochromiteraremineral · Mohs 7.5-8black
Coesiteraremineral · Mohs 7.5colorless, white, gray- No imageColdwater Agatecommonmineral · Mohs 6.5-7gray, white, yellow
- No imageColor Change Garnetraregemstone · Mohs 7-7.5blue, green, purple
Common Opalcommonmineral · Mohs 5.5-6.5white, gray, yellow
Concretioncommonsedimentary · Mohs 3-7brown, gray, tan
Condor Agatecommonmineral · Mohs 6.5-7red, orange, yellow
Congoliteraremineral · Mohs 7white, colorless, gray
Coral Fossilcommonfossil · Mohs 6.5-7white, tan, brown
Cordieritecommonmineral · Mohs 7-7.5blue, violet, gray- No imageCossaitecommonmineral · Mohs 7white, gray
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
Cristobaliteuncommonmineral · Mohs 6.5white, colorless, gray
Cryptomelanecommonmineral · Mohs 6-6.5black, gray- No imageCrystal Opalraregemstone · Mohs 5.5-6.5white, black, colorless
Cyprineraremineral · Mohs 6.5blue, blue-green, sky-blue
Dalyiteraremineral · Mohs 7-7.5colorless, white, pale yellow
Danburiteuncommonmineral · Mohs 7-7.5colorless, white, yellow- No imageDark Gray Flintcommonmineral · Mohs 6.5-7dark gray, black, brown
Darrellhenryiteraremineral · Mohs 7pink, pale pink
Davreuxiteraremineral · Mohs 6-7yellow, brown, pink- 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 imageDessauite-(Y)raremineral · Mohs 6-7black, brownish-black
Diabasecommonigneous · Mohs 6-7dark gray, black, greenish-gray
Diasporeuncommonmineral · Mohs 6.5-7white, gray, colorless- 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
Dollaseite-(Ce)raremineral · Mohs 6-6.5brown, reddish-brown, dark brown
Dravitecommonmineral · Mohs 7-7.5brown, dark brown, yellowish brown- No imageDrusy Quartzcommonmineral · Mohs 7colorless, white, gray
- No imageDry Head Agateuncommonmineral · Mohs 6.5-7red, orange, yellow
Dryhead Agateuncommonmineral · Mohs 6.5-7red, orange, yellow
Dumortieriteuncommonmineral · Mohs 7-8.5blue, violet-blue, reddish-brown
Dumortierite Quartzcommonmineral · Mohs 7blue, violet-blue, deep blue
Dunitecommonigneous · Mohs 6.5-7yellow-green, olive-green, dark green- No imageDzhuluiteraremineral · Mohs 6.5-7dark brown, black
Echinoid Geodeuncommonfossil · Mohs 7gray, white, clear- No imageEdtolliteraremineral · Mohs 7dark brown, reddish-brown
Eifeliteraremineral · Mohs 7.5-8yellow, colorless
Eirikiteraremineral · Mohs 7.5-8colorless, white, pale yellow
Elbaitecommonmineral · Mohs 7-7.5green, pink, blue- No imageElbrusiteraremineral · Mohs 7-7.5black, dark brown
- No imageElixiriteraremineral · Mohs 6-7white, gray, colorless
Ellenbergeriteraremineral · Mohs 6.5-7colorless, pale pink, lilac
Ellensburg Blueraregemstone · Mohs 7blue, violet-blue, cornflower blue
Ellensburg Blue Agateraregemstone · Mohs 6.5-7blue, cornflower blue, violet-blue
Emeraldraregemstone · Mohs 7.5-8green, bluish-green, yellowish-green- No imageEnhydrosuncommonmineral · Mohs 7colorless, white, brown
Epidotecommonmineral · Mohs 6-7pistachio green, yellowish-green, dark green
Epidote-(Sr)raremineral · Mohs 6-7yellow, brown, greenish-yellow
Ericaiteraremineral · Mohs 7red, pink, violet- No imageEringaiteraremineral · Mohs 6.5-7emerald-green
Euclaseraremineral · Mohs 7.5colorless, blue, greenish-blue
Eucryptiteraremineral · Mohs 6.5white, colorless, gray
Euxeniteuncommonmineral · Mohs 5.5-6.5black, brownish-black, reddish-brown
Euxenite-(Y)raremineral · Mohs 5.5-6.5black, brownish-black, brown- No imageEvergreen Jaspercommonmineral · Mohs 6.5-7green, dark green, yellow-green
Eye Agatecommonmineral · Mohs 6.5-7white, gray, brown
Faden Quartzuncommonmineral · Mohs 7white, colorless
Fairburn Agateraremineral · Mohs 6.5-7red, yellow, brown- No imageFairfield Agatecommonmineral · Mohs 6.5-7brown, tan, white
- No imageFairhill Agatecommonmineral · Mohs 6.5-7red, yellow, orange
- No imageFairy Stonecommonmineral · Mohs 7-7.5brown, reddish-brown, black
- No imageFarringtoniteraremineral · Mohs 6-7colorless, white, pale yellow
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