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 121–240 of 2721 rocks (page 2 of 23).
Argyroditeraremineral · Mohs 2.5black, iron-black, steel-gray
Arhbariteraremineral · Mohs 3-4bright green, emerald green- No imageArisite-(La)raremineral · Mohs 3-4yellow, pale yellow
Aristarainiteraremineral · Mohs 3.5white, colorless
Armangiteraremineral · Mohs 3.5-4black, brownish-black- No imageArmbrusteriteraremineral · Mohs 3-4yellow, brown, greenish-brown
- No imageArmellinoite-(Ce)raremineral · Mohs 3-4yellow, pale yellow
Armstrongiteraremineral · Mohs 3.5colorless, white, pale pink
Arsenicuncommonmineral · Mohs 3.5tin-white, gray, black
Arseniopleiteraremineral · Mohs 3.5dark brown, reddish-brown, black- No imageArsenohopeiteraremineral · Mohs 3.5colorless, white
Arsenopalladiniteraremineral · Mohs 3.5white, light yellow, gray- No imageArsenovanmeersscheiteraremineral · Mohs 2-3yellow, bright yellow, orange-yellow
- No imageArsenquatrandoriteraremineral · Mohs 3.5lead-gray, steel-gray
Arsentsumebiteraremineral · Mohs 3.5green, yellow-green, emerald-green
Arsenudinaiteraremineral · Mohs 3.5-4silver-white, pale gray
Arsenuranospathiteraremineral · Mohs 2.5yellow, greenish-yellow
Arsenuranyliteraremineral · Mohs 2-3yellow, orange-yellow
Arsiccioiteraremineral · Mohs 3.5-4black- No imageArsmiranditeraremineral · Mohs 2-3yellow, yellowish-orange
Arthuriteraremineral · Mohs 3-4apple-green, yellow-green, emerald-green
Artiniteuncommonmineral · Mohs 2.5white, colorless
Artroeiteraremineral · Mohs 2.5colorless, white- No imageArtsmithiteraremineral · Mohs 2-3white, colorless, pale yellow
- No imageArzruniteraremineral · Mohs 2.5green, blue-green
Asbestoscommonmineral · Mohs 2.5-3white, green, gray
Aschamalmiteraremineral · Mohs 2.5-3lead-gray, grayish-black
Ashburtoniteraremineral · Mohs 3-4colorless, white, pale blue
Ashcroftine-(Y)raremineral · Mohs 3.5pink, rose-red, colorless
Ashoveriteraremineral · Mohs 3colorless, white- No imageAspidoliteraremineral · Mohs 2.5colorless, pale yellow, brown
Asselborniteraremineral · Mohs 3yellow, brownish-yellow
Astrophylliteuncommonmineral · Mohs 3bronze, golden-yellow, brown
Atacamiteuncommonmineral · Mohs 3-3.5dark green, bright green, emerald green
Athabascaiteraremineral · Mohs 3silver-white, gray
Atheneiteraremineral · Mohs 3.5white, pale yellow- No imageAtlasoviteraremineral · Mohs 3-4black, dark brown
Atokiteraremineral · Mohs 3.5-4silver-white, gray
Attakoliteraremineral · Mohs 3.5-4yellow, brown, reddish-brown
Auriacusiteraremineral · Mohs 3.5yellow, brownish-yellow
Auricuprideraremineral · Mohs 3-3.5yellow, gold
Aurihydrargyrumiteraremineral · Mohs 3.5gold, yellow
Aurostibiteraremineral · Mohs 3white, pale yellow
Autunitecommonmineral · Mohs 2-2.5yellow, yellowish-green, lemon-yellow- No imageAverieviteraremineral · Mohs 2.5dark green, blackish-green
Avogadriteraremineral · Mohs 2.5colorless, white
Azuritecommonmineral · Mohs 3.5-4azure blue, deep blue- No imageBabefphiteraremineral · Mohs 3.5colorless, white, pale yellow
- No imageBabkiniteraremineral · Mohs 2.5lead-gray, tin-white
- No imageBackiteraremineral · Mohs 2.5-3yellow, yellowish-orange
Baculitecommonfossil · Mohs 3-4brown, gray, beige
Bafertisiteraremineral · Mohs 3brown, yellowish-brown, reddish-brown- No imageBaileychloreraremineral · Mohs 2.5-3dark green, olive green, blackish green
- No imageBairditeraremineral · Mohs 3.5yellow, pale yellow
Bakhchisaraitseviteraremineral · Mohs 3.5colorless, white, pale yellow
Balangeroiteraremineral · Mohs 3.5brown, reddish-brown- No imageBalestraiteraremineral · Mohs 2.5-3colorless, white
Balipholiteraremineral · Mohs 3.5colorless, white, pale yellow
Balkaniteraremineral · Mohs 2.5-3black, gray- No imageBamforditeraremineral · Mohs 3red, brownish-red
- No imageBanded Serpentinecommonmineral · Mohs 2.5-5.5green, yellow-green, dark green
Bandyliteraremineral · Mohs 2.5blue, turquoise
Bannermaniteraremineral · Mohs 3-4dark red, brownish red, orange red
Barahonaite-(Al)raremineral · Mohs 3-4blue, green
Barahonaite-(Fe)raremineral · Mohs 3-4red, reddish-orange
Barariteraremineral · Mohs 2.5-3colorless, white, gray- No imageBarentsiteraremineral · Mohs 3colorless, white, pale yellow
Barianditeraremineral · Mohs 2-3black, dark brown- No imageBarikaiteraremineral · Mohs 3-4yellow, yellowish-brown
- No imageBariopharmacoalumiteraremineral · Mohs 2.5yellow, greenish yellow, pale yellow
Bariopharmacosideriteraremineral · Mohs 2.5yellow, yellow-green, brown- No imageBariosincositeraremineral · Mohs 3green, pale green, yellowish-green
Baritecommonmineral · Mohs 3-3.5colorless, white, yellow- No imageBarite Rosescommonmineral · Mohs 3-3.5brown, reddish-brown, tan
- No imageBarlowiteraremineral · Mohs 3deep blue, dark green-blue
- No imageBarquilliteraremineral · Mohs 2.5-3dark gray, black
Barreriteraremineral · Mohs 3.5-4colorless, white, pink- No imageBarrotiteraremineral · Mohs 3colorless, white
Barstowiteraremineral · Mohs 3colorless, white
Bartoniteraremineral · Mohs 3.5black, bronze-brown
Barysiliteraremineral · Mohs 3white, colorless, yellowish
Barytecommonmineral · Mohs 3-3.5white, colorless, yellow- No imageBarytolamprophylliteraremineral · Mohs 3-4brown, yellowish-brown, golden-brown
Bassaniteraremineral · Mohs 3white, colorless, gray
Bassetiteraremineral · Mohs 2-3yellow, yellowish-green, brownish-yellow- No imageBassoiteraremineral · Mohs 3-4colorless, white
- No imageBatagayiteraremineral · Mohs 3-4colorless, white
- No imageBatisiviteraremineral · Mohs 3.5dark brown, reddish brown
Baumhaueriteraremineral · Mohs 3lead-gray, grayish-black- No imageBaumhauerite IIraremineral · Mohs 3lead-gray, iron-black
Baumstarkiteraremineral · Mohs 2.5gray, black
Bauranoiteraremineral · Mohs 2-3yellow, orange-yellow
Bauxitecommonsedimentary · Mohs 1-3red, brown, tan- No imageBayeriteraremineral · Mohs 2.5-3white, colorless
Bayleyiteraremineral · Mohs 2.5yellow, yellow-orange
Bearsiteraremineral · Mohs 3colorless, white
Beaverite-(Cu)raremineral · Mohs 3.5-4yellow, yellowish-brown, greenish-yellow- No imageBeaverite-(Zn)raremineral · Mohs 3.5yellow, greenish-yellow
Becquereliteraremineral · Mohs 2.5yellow, amber, orange
Behoiteraremineral · Mohs 3-4white, colorless
Belemnitecommonfossil · Mohs 3-4brown, black, gray
Belendorffiteraremineral · Mohs 3.5silver-white- No imageBellidoiteraremineral · Mohs 2.5black, gray
Bellingeriteraremineral · Mohs 3-4yellow, greenish-yellow
Belomarinaiteraremineral · Mohs 2-3colorless, white
Belyankiniteraremineral · Mohs 2-3yellowish-white, colorless, white
Benavidesiteraremineral · Mohs 2.5-3lead-gray, black
Bendadaiteraremineral · Mohs 3.5-4dark green, brown- No imageBenjaminiteraremineral · Mohs 3.5lead-gray, white
Benstoniteraremineral · Mohs 3-4white, gray, brownish-yellow
Bentoriteraremineral · Mohs 3pink, violet, white
Benyacariteraremineral · Mohs 3yellow, brown
Berauniteuncommonmineral · Mohs 3.5-4reddish-brown, brown, dark red
Berboriteraremineral · Mohs 3.5colorless, white
Bergeniteraremineral · Mohs 2-3yellow, yellowish-green
Bermaniteraremineral · Mohs 3.5reddish-brown, brown, orange-brown- No imageBernaliteraremineral · Mohs 3.5dark emerald green, blackish green
- No imageBernarditeraremineral · Mohs 3-3.5red, dark red, black
- No imageBernarlottiiteraremineral · Mohs 3-3.5black
Berryiteraremineral · Mohs 3-4lead-gray, dark gray
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