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 361–480 of 2721 rocks (page 4 of 23).
Buryatiteraremineral · Mohs 3.5white, colorless- No imageBuseckiteraremineral · Mohs 3.5-4black, brown
- No imageBushmakiniteraremineral · Mohs 3-4yellow, greenish-yellow, olive-green
- No imageBusseniteraremineral · Mohs 3-4yellow, brown
Butleriteraremineral · Mohs 2.5orange, yellow-orange
Bütschliiteraremineral · Mohs 2.5white, colorless, pale yellow
Buttgenbachiteraremineral · Mohs 3blue, deep blue
Cabalzariteraremineral · Mohs 3.5yellow, orange-yellow
Cabriiteraremineral · Mohs 3.5-4pinkish-white, bright metallic
Cacoxeniteuncommonmineral · Mohs 3-4yellow, golden-yellow, orange
Cadmoinditeraremineral · Mohs 3-4black, dark gray
Cadmoseliteraremineral · Mohs 3.5-4black, dark gray- No imageCaesiumpharmacosideriteraremineral · Mohs 2.5yellow, yellowish-brown, greenish-yellow
Cafetiteraremineral · Mohs 3-4yellow, brown, colorless
Cahniteraremineral · Mohs 3white, colorless- No imageCairncrossiteraremineral · Mohs 3white, colorless
Calaveriteraremineral · Mohs 2.5-3brass-yellow, silver-white- No imageCalcified Coralcommonfossil · Mohs 3-4white, brown, tan
Calcioandyrobertsiteraremineral · Mohs 3pale blue, white, colorless
Calcioaravaipaiteraremineral · Mohs 2.5colorless, white, yellowish- No imageCalcioburbankiteraremineral · Mohs 3.5white, pale yellow, colorless
- No imageCalciocopiapiteraremineral · Mohs 2.5-3yellow, pale yellow, sulfur yellow
Calcioferriteraremineral · Mohs 2.5yellow, yellowish-brown, white- No imageCalciolangbeiniteraremineral · Mohs 3-3.5white, colorless, pale yellow
- No imageCalciomurmaniteraremineral · Mohs 3-4pink, brown, lavender
Calciopetersiteraremineral · Mohs 3green, bluish-green
Calciouranoiteraremineral · Mohs 2-3yellow, orange-yellow- No imageCalcioursiliteraremineral · Mohs 2-3yellow, golden yellow
Calcitecommonmineral · Mohs 3white, colorless, yellow- No imageCalcite Nodulescommonmineral · Mohs 3white, yellow, gray
- No imageCalcite Onyxcommonmineral · Mohs 3white, brown, tan
Calcurmoliteraremineral · Mohs 2-3yellow, orange-yellow
Calderóniteraremineral · Mohs 2.5yellow, yellowish-orange
Caledoniteraremineral · Mohs 2.5-3deep blue, blue-green, green
Calkinsite-(Ce)raremineral · Mohs 2.5yellow, brown, white
Callaghaniteraremineral · Mohs 3blue, blue-green- No imageCámaraiteraremineral · Mohs 3.5yellow, brown
- No imageCamaronesiteraremineral · Mohs 3white, colorless, pale yellow
Cameroniteraremineral · Mohs 3.5-4brass-yellow, pale gold- No imageCamgasiteraremineral · Mohs 3-4white, colorless
- No imageCaminiteraremineral · Mohs 3-3.5white, colorless, pale yellow
- No imageCampostriniiteraremineral · Mohs 3yellow, brownish-yellow
- No imageCanfielditeraremineral · Mohs 2.5black, grayish-black
Cannel Coalcommonsedimentary · Mohs 2-3black, brownish-black
Cannoniteraremineral · Mohs 2-3colorless, white- No imageCanosioiteraremineral · Mohs 3.5yellow, yellowish-orange
Canutiteraremineral · Mohs 3colorless, white, yellowish
Capgaronniteraremineral · Mohs 2.5white, colorless, pale yellow
Capranicaiteraremineral · Mohs 3.5colorless, white
Caracoliteraremineral · Mohs 3white, colorless, pale yellow
Carbocernaiteraremineral · Mohs 3white, yellow, brownish-yellow
Carbonatecyanotrichiteraremineral · Mohs 2-3blue, sky-blue
Carbonatiterareigneous · Mohs 3-4white, gray, tan- No imageCarditeraremineral · Mohs 3colorless, white, yellowish
- No imageCarducciiteraremineral · Mohs 2.5lead-gray, silver-white
Caresiteraremineral · Mohs 2.5white, colorless, pale yellow
Carletonmooreiteraremineral · Mohs 3white, silvery-white- No imageCarlfrancisiteraremineral · Mohs 3.5dark brown, brownish red, black
Carlfriesiteraremineral · Mohs 3.5yellow, pale yellow
Carlhintzeiteraremineral · Mohs 3.5colorless, white- No imageCarliniteraremineral · Mohs 3pale yellow, yellow-white
Carlosbarbosaiteraremineral · Mohs 3-4yellow, yellowish-orange- No imageCarlosruiziteraremineral · Mohs 2-3yellow, yellowish-orange
Carlosturaniteraremineral · Mohs 2.5brown, greenish-brown, black
Carlsbergiteraremineral · Mohs 3.5silver-white, gray
Carminiteraremineral · Mohs 3.5carmine-red, reddish-brown, orange-red
Carnallitecommonmineral · Mohs 2.5white, colorless, yellow- No imageCarraraiteraremineral · Mohs 2.5white, colorless
- No imageCaryiniteraremineral · Mohs 3.5yellow, yellowish-brown, brown
- No imageCaryochroiteraremineral · Mohs 3-4brown, reddish-brown
Caryopiliteraremineral · Mohs 3-4brown, yellow-brown, red-brown
Cassedanneiteraremineral · Mohs 3orange, orange-red
Castellaroiteraremineral · Mohs 2.5yellow, yellow-orange
Caswellsilveriteraremineral · Mohs 3.5black, gray- No imageCatamarcaiteraremineral · Mohs 3-3.5gray, black
Catlinitecommonsedimentary · Mohs 2.5-3red, reddish-brown, brown
Cavansiteraremineral · Mohs 3-4bright blue, azure blue, greenish blue
Cave Pearlscommonmineral · Mohs 3white, cream, gray- No imageCavoiteraremineral · Mohs 3white, colorless
Celestinecommonmineral · Mohs 3-3.5colorless, white, pale blue
Celestitecommonmineral · Mohs 3-3.5colorless, white, pale blue- No imageCelestite Concretionscommonmineral · Mohs 3-3.5blue, white, colorless
Černýiteraremineral · Mohs 3.5black, grayish-black
Cerussitecommonmineral · Mohs 3-3.5colorless, white, gray- No imageCervelleiteraremineral · Mohs 2.5gray, black
- No imageCesiodymiteraremineral · Mohs 2.5-3colorless, white
Chabournéiteraremineral · Mohs 3-3.5dark gray, black- No imageChadwickiteraremineral · Mohs 2-3yellow, greenish-yellow
- No imageChaidamuiteraremineral · Mohs 2-3yellow, greenish-yellow
Chalcanthiteuncommonmineral · Mohs 2.5blue, blue-green
Chalcoalumiteuncommonmineral · Mohs 2.5sky-blue, blue-green
Chalcocitecommonmineral · Mohs 2.5-3lead-gray, black, tarnish-blue
Chalcocyaniteraremineral · Mohs 2.5blue, pale blue- No imageChalcoliteuncommonmineral · Mohs 2-2.5emerald green, grass green, leaf green
Chalcomeniteraremineral · Mohs 2.5blue, blue-green
Chalconatroniteraremineral · Mohs 2.5blue, blue-green
Chalcophaniteuncommonmineral · Mohs 2.5black, bluish-black
Chalcopyritecommonmineral · Mohs 3.5-4brass-yellow, iridescent, gold
Chalcostibiteraremineral · Mohs 3-4lead-gray, steel-gray, iron-black
Chalcothalliteraremineral · Mohs 2.5dark gray, black
Chaméaniteraremineral · Mohs 3-3.5dark gray, black
Chamositecommonmineral · Mohs 3green, grayish-green, blackish-green
Changbaiiteraremineral · Mohs 3.5colorless, white- No imageChangchengiteraremineral · Mohs 3.5gray, white
Changoiteraremineral · Mohs 2.5colorless, white
Chapmaniteraremineral · Mohs 2.5yellow, yellowish-green, green
Charlesiteraremineral · Mohs 2.5white, colorless, pale yellow- No imageCharlevoix Stonecommonfossil · Mohs 3-4gray, white, beige
Chatkaliteraremineral · Mohs 3.5-4pinkish-brown, light copper-red
Chekhovichiteraremineral · Mohs 2-3yellow, brownish-yellow
Chelkariteraremineral · Mohs 3-4colorless, white
Chenevixiteraremineral · Mohs 3.5green, yellow-green, dark green- No imageChengdeiteraremineral · Mohs 3.5-4white, silver-white
Chenguodaiteraremineral · Mohs 3-3.5silver-white
Cheniteraremineral · Mohs 2.5green, yellowish-green- No imageCheremnykhiteraremineral · Mohs 3yellow, brownish-yellow
Chernikoviteraremineral · Mohs 2.5yellow, lemon-yellow
Chernykhiteraremineral · Mohs 2.5-3dark green, black
Chervetiteraremineral · Mohs 3.5yellow, yellowish-orange- No imageChinchorroiteraremineral · Mohs 2-3yellow, yellowish-green
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