Mohs hardness 3 rocks & minerals
Mohs hardness 3 is the calcite mark — easily scratched by a copper coin. Many carbonates and softer sulfides cluster here.
Showing 1561–1680 of 2721 rocks (page 14 of 23).
- No imageMetalodèviteraremineral · Mohs 2-2.5yellow, greenish-yellow
- No imageMetanatroautuniteraremineral · Mohs 2-2.5yellow, yellow-green
Metanováčekiteraremineral · Mohs 2.5yellow, yellow-green
Metasaléeiteraremineral · Mohs 2.5yellow, yellow-green
Metaschoepiteraremineral · Mohs 2.5yellow, pale yellow
Metasideronatriteraremineral · Mohs 2.5yellow, orange-yellow- No imageMetatamboiteraremineral · Mohs 2-3yellow, yellow-orange, brown
- No imageMetathénarditeraremineral · Mohs 2.5white, colorless, grayish
Metatorberniteuncommonmineral · Mohs 2.5emerald green, grass green, dark green- No imageMetauramphiteraremineral · Mohs 2-2.5yellow, greenish-yellow
- No imageMetauranocirciteraremineral · Mohs 2-2.5yellow, yellow-green
- No imageMetauranopiliteraremineral · Mohs 2-3yellow, yellow-green
- No imageMetauranospiniteraremineral · Mohs 2.5yellow, yellow-green
- No imageMetavandendriesscheiteraremineral · Mohs 3yellow, orange-yellow
Metavanmeersscheiteraremineral · Mohs 2-3yellow, bright yellow
Metavarisciteraremineral · Mohs 3.5-4green, yellow-green
Metavauxiteraremineral · Mohs 3colorless, white, pale green- No imageMetavoltineraremineral · Mohs 2.5yellow, orange, brown
- No imageMetazelleriteraremineral · Mohs 2-3yellow, pale yellow
Metazeuneriteuncommonmineral · Mohs 2-2.5emerald-green, apple-green, yellow-green
Meurigite-Kraremineral · Mohs 3-4yellow, yellow-brown, brownish-orange
Meurigite-Nararemineral · Mohs 3-4yellow, brownish-yellow, orange-yellow
Mexican Onyxcommonmineral · Mohs 3white, yellow, brown- No imageMeymaciteraremineral · Mohs 2-3yellow, yellowish-green, brown
Miargyriteraremineral · Mohs 2.5iron-black, steel-gray
Miassiteraremineral · Mohs 3.5-4silver-white, gray
Micacommonmineral · Mohs 2-3black, brown, silver- No imageMica Bookscommonmineral · Mohs 2.5-4black, brown, silver
Mica Schistcommonmetamorphic · Mohs 3-6silver, gray, black
Micheelseniteraremineral · Mohs 3colorless, white, pale blue
Micheneriteraremineral · Mohs 2.5-3white, cream-white- No imageMiddlebackiteraremineral · Mohs 2-3blue
Miersiteraremineral · Mohs 2-2.5yellow, bright yellow, pale yellow
Miguelromeroiteraremineral · Mohs 3-4yellow, yellowish-orange
Milleriteuncommonmineral · Mohs 3-3.5brass-yellow, pale bronze-yellow
Millosevichiteraremineral · Mohs 2-3white, pale yellow, pale green- No imageMilotaiteraremineral · Mohs 3-3.5gray, white
Mimetiteuncommonmineral · Mohs 3.5-4yellow, orange, brown- No imageMineevite-(Y)raremineral · Mohs 3-4colorless, white, yellow
Minehilliteraremineral · Mohs 3white, colorless, pale yellow
Minguzziteraremineral · Mohs 2-3green
Miniumraremineral · Mohs 2.5red, orange, bright red- No imageMinjiangiteraremineral · Mohs 3.5colorless, white
Minohliteraremineral · Mohs 2.5blue, blue-green
Minrecorditeraremineral · Mohs 3.5-4colorless, white, pale yellow
Minyuliteraremineral · Mohs 3.5white, colorless, pale yellow- No imageMisakiiteraremineral · Mohs 2.5bright green, bluish-green
Mitridatiteuncommonmineral · Mohs 3.5green, dark green, yellow-green- No imageMitrofanoviteraremineral · Mohs 3.5white
- No imageMitryaevaiteraremineral · Mohs 3-4white, colorless
Mixiteraremineral · Mohs 3-4white, green, blue-green
Moctezumiteraremineral · Mohs 3orange, orange-red
Modderiteraremineral · Mohs 3.5white, gray- No imageMoëloiteraremineral · Mohs 2-3lead-gray, tin-white
Mohiteraremineral · Mohs 3-3.5steel-gray, silver-white
Möhniteraremineral · Mohs 3-3.5steel-gray, silver-white
Mohriteraremineral · Mohs 2-3greenish-white, pale green, colorless
Molinelloiteraremineral · Mohs 3blue, deep blue
Molybdofornaciteraremineral · Mohs 3yellow, greenish-yellow
Molybdomeniteraremineral · Mohs 2.5white, yellowish-white, colorless
Molybdophylliteraremineral · Mohs 3.5-4colorless, white, yellow
Moncheiteraremineral · Mohs 2.5-3white, tin-white
Monetiteraremineral · Mohs 3.5white, colorless, gray
Monohydrocalciteraremineral · Mohs 3white, colorless, gray
Montaniteraremineral · Mohs 3yellow, white, pale yellow
Montbrayiteraremineral · Mohs 2.5-3white, pale yellow- No imageMontdoriteraremineral · Mohs 2.5yellow, brown
Monteponiteraremineral · Mohs 3yellow, yellowish-brown, black
Monteregianite-(Y)raremineral · Mohs 3.5colorless, white, pale yellow- No imageMontetrisaiteraremineral · Mohs 2-3blue, greenish blue
Montgomeryiteraremineral · Mohs 3colorless, white, green- No imageMontroyaliteraremineral · Mohs 3.5white, colorless
- No imageMooihoekiteraremineral · Mohs 3.5bronze-yellow, brass-yellow
- No imageMooreiteraremineral · Mohs 3colorless, white, pinkish
Mopungiteraremineral · Mohs 3white, colorless
Moraesiteraremineral · Mohs 3white, colorless, pale yellow- No imageMoraskoiteraremineral · Mohs 3-4colorless, white
Mordenitecommonmineral · Mohs 3-4white, colorless, yellow
Moreauiteraremineral · Mohs 3yellow, yellow-green
Morenositeraremineral · Mohs 2-2.5apple-green, light green, white
Mosasaur Toothcommonfossil · Mohs 3-5black, brown, tan
Moschellandsbergiteraremineral · Mohs 3.5silver-white, pale yellow- No imageMosesiteraremineral · Mohs 3yellow, light yellow, lemon-yellow
Mottramitecommonmineral · Mohs 3-3.5dark green, olive green, blackish green
Mounanaiteraremineral · Mohs 3.5dark red, reddish brown, orange red
Mountainiteraremineral · Mohs 3white, colorless- No imageMouriteraremineral · Mohs 3-4dark blue, deep violet
Moydite-(Y)raremineral · Mohs 3.5white, yellow, tan- No imageMozgovaiteraremineral · Mohs 2.5lead-gray, steel-gray
- No imageMpororoiteraremineral · Mohs 2-3yellow, greenish-yellow
Mroseiteraremineral · Mohs 3.5colorless, white, yellowish
Mückeiteraremineral · Mohs 3-4yellow, brownish-yellow
Mudstonecommonsedimentary · Mohs 2-3gray, brown, red- No imageMuiriteraremineral · Mohs 3.5yellow, brown, orange-brown
Mummeiteraremineral · Mohs 3.5lead-gray, grayish-white
Munakataiteraremineral · Mohs 3-4bright blue, pale blue
Munditeraremineral · Mohs 3yellow, brownish-yellow- No imageMurchisiteraremineral · Mohs 2.5-3white, colorless, gray
Murdochiteraremineral · Mohs 3.5-4black
Murmaniteraremineral · Mohs 2-3violet, brown, pink- No imageMurunskiteraremineral · Mohs 3-4bronze-yellow, steel-gray
Muscovitecommonmineral · Mohs 2.5-3colorless, yellow, brown
Mushistoniteraremineral · Mohs 3.5-4yellowish-green, olive-green, brownish-green
Muskoxiteraremineral · Mohs 2-3brown, yellowish-brown
Muthmanniteraremineral · Mohs 2.5pale yellow, tin-white, grayish-white- No imageNabalamprophylliteraremineral · Mohs 3yellow, brown, reddish-brown
Nabaphiteraremineral · Mohs 3.5colorless, white, pale yellow- No imageNabokoiteraremineral · Mohs 3.5-4greenish-yellow, yellowish-green
Nacaphiteraremineral · Mohs 3.5colorless, white, pale yellow
Nacriteuncommonmineral · Mohs 2.5white, yellowish, greenish
Nadoriteraremineral · Mohs 3.5-4yellowish-brown, brown, yellow
Nafertisiteraremineral · Mohs 3brown, golden-brown, yellowish-brown
Nahcoliteuncommonmineral · Mohs 2.5white, colorless, gray
Nakauriiteraremineral · Mohs 2-3blue, pale blue, bluish green- No imageNalipoiteraremineral · Mohs 3.5colorless, white
- No imageNalivkiniteraremineral · Mohs 2.5-3white, colorless, pale yellow
Nanpingiteraremineral · Mohs 2.5colorless, white, pale yellow
Nantokiteraremineral · Mohs 2-2.5colorless, white, gray
Naquiteraremineral · Mohs 3.5white, gray
Nasledoviteraremineral · Mohs 3white, gray, pale yellow
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