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 1–120 of 2721 rocks around Mohs 3.
Abelsoniteraremineral · Mohs 2-3purple, reddish-brown, pinkish-brown
Abernathyiteraremineral · Mohs 2.5yellow, lemon yellow
Abuiteraremineral · Mohs 3.5colorless, white
Acanthitecommonmineral · Mohs 2-2.5lead-gray, black
Achávaliteraremineral · Mohs 3.5-4bronze, reddish-brown- No imageAcmonidesiteraremineral · Mohs 3yellow, orange-yellow
Acuminiteraremineral · Mohs 3.5colorless, white
Adamiteuncommonmineral · Mohs 3.5yellow, green, colorless
Adamsite-(Y)raremineral · Mohs 3-4white, colorless, pale yellow- No imageAdolfpateraiteraremineral · Mohs 2.5yellow, yellow-green
Adranositeraremineral · Mohs 2-3white, yellow- No imageAdranosite-(Fe)raremineral · Mohs 2-3yellow, yellowish-orange
Aeriniteraremineral · Mohs 3blue, azure blue, greenish blue
Aerugiteraremineral · Mohs 3.5green, blue-green
Afmiteraremineral · Mohs 2-3yellow, yellow-green
Afwilliteraremineral · Mohs 3colorless, white- No imageAgaiteraremineral · Mohs 3yellow, orange-yellow
Agardite-(Ce)raremineral · Mohs 3-4yellow, yellowish-green, green
Agardite-(La)raremineral · Mohs 3-4yellow, yellow-green, light green
Agardite-(Nd)raremineral · Mohs 3-4yellow, yellow-green, green
Agardite-(Y)raremineral · Mohs 3-4yellow, greenish-yellow, pale green- No imageAgmantiniteraremineral · Mohs 2.5-3dark gray, black
Agricolaiteraremineral · Mohs 2.5white, colorless
Agrinieriteraremineral · Mohs 3orange, yellow-orange
Aguilariteraremineral · Mohs 2.5lead-gray, iron-black
Ahlfelditeraremineral · Mohs 2.5pink, reddish-pink
Aikiniteuncommonmineral · Mohs 2-2.5lead-gray, blackish
Aiolositeraremineral · Mohs 3.5yellow, brownish-yellow
Ajoiteraremineral · Mohs 3.5blue, greenish-blue
Akaganeiteuncommonmineral · Mohs 3-4reddish-brown, brown, yellowish-brown
Akhtenskiteraremineral · Mohs 2-3black, gray
Akrochorditeraremineral · Mohs 3.5reddish-brown, brown, yellowish-brown
Aksaiteraremineral · Mohs 3colorless, white
Aktashiteraremineral · Mohs 3-3.5gray, black
Alabanditeuncommonmineral · Mohs 3.5-4black, iron-black, brownish-black
Alarsiteraremineral · Mohs 3-4white, colorless- No imageAlbanditeraremineral · Mohs 3.5-4black, brownish-black
- No imageAlbertiniiteraremineral · Mohs 2-3yellow, yellowish-orange
- No imageAlburniteraremineral · Mohs 3black, dark gray
- No imageAlcaparrosaiteraremineral · Mohs 3yellow, yellowish-orange
- No imageAlexkhomyakoviteraremineral · Mohs 3-4yellow, yellowish-orange
Alfredopetroviteraremineral · Mohs 2-3colorless, white- No imageAlfredstelzneriteraremineral · Mohs 3.5colorless, white
Algodoniteraremineral · Mohs 3.5-4silver-white, steel-gray
Allactiteraremineral · Mohs 3-4dark red, reddish brown, brown
Allanpringiteraremineral · Mohs 3.5yellowish-brown, brown
Allargentumraremineral · Mohs 2.5-3silver-white, tin-white- No imageAlloclasiteraremineral · Mohs 3.5white, steel-gray
Allophanecommonmineral · Mohs 3white, blue, green
Alluauditeuncommonmineral · Mohs 3.5yellow, brown, green
Altaiteraremineral · Mohs 2.5-3tin-white, yellowish-white
Alteriteraremineral · Mohs 3.5yellow, yellowish-brown, brown
Althausiteraremineral · Mohs 3.5colorless, white, gray
Althupiteraremineral · Mohs 3-4yellow, yellow-green
Alumcommonmineral · Mohs 2-2.5white, colorless, yellowish
Alum-(K)commonmineral · Mohs 2-2.5colorless, white, grayish
Aluminocopiapiteraremineral · Mohs 2.5-3yellow, pale yellow, golden yellow- No imageAluminocoquimbiteraremineral · Mohs 2-3pale violet, white, colorless
- No imageAluminomagnesiohulsiteraremineral · Mohs 3.5-4black, brown
- No imageAluminopyracmoniteraremineral · Mohs 2.5colorless, white
- No imageAlumoedtolliteraremineral · Mohs 2-3white, colorless
- No imageAlumoklyuchevskiteraremineral · Mohs 3-4dark green, black
Alunitecommonmineral · Mohs 3.5-4white, gray, pink
Alvaniteraremineral · Mohs 2-3dark green, yellowish-green, olive green
Amakiniteraremineral · Mohs 2.5yellow, greenish-yellow- No imageAmamooriteraremineral · Mohs 3.5-4white, yellowish-white, colorless
Amarantiteraremineral · Mohs 2.5orange, brownish-red
Ambercommonfossil · Mohs 2-2.5yellow, orange, brown- No imageAmber Baritecommonfossil · Mohs 2-2.5yellow, orange, brown
Ameghiniteraremineral · Mohs 3.5colorless, white
Amesiteraremineral · Mohs 2.5-3white, green, pink
Ammoliterarefossil · Mohs 3.5-4.5iridescent red, green, gold
Ammonioaluniteraremineral · Mohs 3.5-4white, colorless
Ammoniojarositeuncommonmineral · Mohs 2.5-3.5yellow, yellow-brown, brown- No imageAmmoniomagnesiovoltaiteraremineral · Mohs 2.5-3black, dark green, brown
- No imageAmmoniomathesiusiteraremineral · Mohs 2-3yellow
- No imageAmmoniovoltaiteraremineral · Mohs 3black, dark green, brown
Ammonitescommonfossil · Mohs 3-4brown, gray, black- No imageAnanditeraremineral · Mohs 2.5-3black, brown
Anapaiteuncommonmineral · Mohs 3.5pale green, yellowish-green, white
Andersoniteraremineral · Mohs 2.5bright yellow, yellow-green- No imageAndreadiniiteraremineral · Mohs 3black, lead-gray
Andychristyiteraremineral · Mohs 2.5yellow, yellow-green
Andyrobertsiteraremineral · Mohs 3-4white, pale yellow- No imageAngarfiteraremineral · Mohs 3yellow, yellow-orange
- No imageÁngelaiteraremineral · Mohs 3black, lead-gray
- No imageAngelelliteraremineral · Mohs 3.5red, brownish-red
Angelitecommonmineral · Mohs 3.5blue, grayish-blue, white
Anglesitecommonmineral · Mohs 2.5-3colorless, white, yellow
Anhydritecommonmineral · Mohs 3.5colorless, white, gray- No imageAnhydrokainiteraremineral · Mohs 3white, colorless, yellowish
Aniliteraremineral · Mohs 3.5gray, dark gray, black
Ankeritecommonmineral · Mohs 3.5-4white, yellow, brown
Ankinovichiteraremineral · Mohs 2-3yellow, yellow-green
Annabergiteuncommonmineral · Mohs 1.5-2.5apple-green, pale green, white
Annitecommonmineral · Mohs 2.5-3black, dark brown, dark green- No imageAnorthoroseliteraremineral · Mohs 3.5rose-red, pink, magenta
Anthoiniteraremineral · Mohs 2-3white, yellowish-white
Antigoritecommonmineral · Mohs 2.5-3.5green, yellow-green, brown
Antimonyraremineral · Mohs 3-3.5tin-white, silver-gray
Antipiniteraremineral · Mohs 3blue, greenish-blue
Antleriteuncommonmineral · Mohs 3.5emerald green, dark green, blackish green- No imageAnyuiiteraremineral · Mohs 3.5white, silver-white
Aphthitaliteuncommonmineral · Mohs 3-3.5white, colorless, gray
Aplowiteraremineral · Mohs 2-3pink, pale pink, white
Aragonitecommonmineral · Mohs 3.5-4white, colorless, yellow
Aramayoiteraremineral · Mohs 2.5black, gray- No imageArangasiteraremineral · Mohs 3.5yellow, brown, white
- No imageAravaiteraremineral · Mohs 3.5colorless, white
Arcaniteraremineral · Mohs 3colorless, white, yellowish
Arcubisiteraremineral · Mohs 2.5lead-gray, silver-white
Ardaiteraremineral · Mohs 2.5gray, dark gray, black
Argentitecommonmineral · Mohs 2-2.5lead-gray, black
Argentobaumhaueriteraremineral · Mohs 3lead-gray, black
Argentojarositeuncommonmineral · Mohs 2.5-3.5yellow, yellowish-brown
Argentopentlanditeraremineral · Mohs 3.5bronze-yellow, yellowish-white
Argentopyriteraremineral · Mohs 3.5silver-white, grayish-black- No imageArgentotennantite-(Zn)raremineral · Mohs 3-4steel-gray, iron-black
Argentotetrahedrite-(Fe)raremineral · Mohs 3-4steel-gray, iron-black- No imageArgesiteraremineral · Mohs 2.5white, colorless
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