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 2281–2400 of 2721 rocks (page 20 of 23).
Spiridonoviteraremineral · Mohs 3.5white
Spiroffiteraremineral · Mohs 3colorless, white, pale yellow
Sponge Fossilcommonfossil · Mohs 2.5-7gray, white, tan
Spongescommonfossil · Mohs 3-5white, gray, brown- No imageSpriggiteraremineral · Mohs 2-3orange, yellow-orange
- No imageSpryiteraremineral · Mohs 2.5yellow, yellowish-orange
Sputnik Aragonitecommonmineral · Mohs 3.5-4brown, tan, creamy white- No imageŠreiniteraremineral · Mohs 3yellow, brownish-yellow
Stalderiteraremineral · Mohs 3.5lead-gray, black
Stanniteuncommonmineral · Mohs 3.5steel gray, iron black, blackish bronze- No imageStarkeyiteraremineral · Mohs 2-2.5white, colorless, pale yellow
Starovaiteraremineral · Mohs 3yellow, greenish-yellow
Staurolite Schistcommonmetamorphic · Mohs 3.5-7dark brown, gray, brownish-black- No imageSteedeiteraremineral · Mohs 3.5colorless, white
Steigeriteraremineral · Mohs 2.5bright yellow, lemon yellow- No imageSteinhardtiteraremineral · Mohs 3.5silver-white, gray
Steinmetziteraremineral · Mohs 3.5white, pale yellow
Stekliteraremineral · Mohs 3-3.5colorless, white, grayish
Stenhuggariteraremineral · Mohs 3.5yellow, yellowish-orange
Stenoniteraremineral · Mohs 3.5colorless, white, gray
Stephaniteuncommonmineral · Mohs 2-2.5iron-black, lead-gray
Štěpiteraremineral · Mohs 3.5yellow, yellow-green, brown
Stergiouiteraremineral · Mohs 3.5colorless, white
Steropesiteraremineral · Mohs 3-4colorless, white
Sterryiteraremineral · Mohs 3.5lead-gray, black
Stetefeldtiteraremineral · Mohs 3.5-4.5brown, black, yellowish-brown
Stibarsenraremineral · Mohs 3.5tin-white, gray- No imageStibioclaudetiteraremineral · Mohs 2.5white, colorless, yellowish
- No imageStibiocolusiteraremineral · Mohs 3.5gray, brownish-gray
Stilbitecommonmineral · Mohs 3.5-4white, colorless, yellow
Stilbite-Cacommonmineral · Mohs 3.5-4white, colorless, yellow- No imageStilbite-Nacommonmineral · Mohs 3.5-4white, yellow, pink
Stilpnomelanecommonmineral · Mohs 3-4black, brownish-black, bronze
Stistaiteraremineral · Mohs 3.5white, silver-white
Stoiberiteraremineral · Mohs 3dark red, orange-red
Stolziteraremineral · Mohs 2.5-3red, orange, yellow
Stottiteraremineral · Mohs 3.5black
Stranskiiteraremineral · Mohs 3.5azure-blue, sky-blue
Strashimiriteraremineral · Mohs 2.5green, pale green, white- No imageStrassmanniteraremineral · Mohs 2.5white, colorless
Strelkiniteraremineral · Mohs 2-3yellow, bright yellow
Strengiteuncommonmineral · Mohs 3.5-4red, violet, pink
Stringhamiteraremineral · Mohs 3blue, blue-green- No imageStromatoporioidscommonfossil · Mohs 3-5tan, brown, gray
Stromeyeriteraremineral · Mohs 2.5-3steel-gray, dark blue
Strontianitecommonmineral · Mohs 3.5colorless, white, gray
Strontioboriteraremineral · Mohs 3.5colorless, white, gray
Strontiodresseriteraremineral · Mohs 3.5white, colorless, pale yellow
Strontioginoriteraremineral · Mohs 2-3white, colorless- No imageStrontiomelaneraremineral · Mohs 3-4black, dark gray
- No imageStrontiopharmacosideriteraremineral · Mohs 2.5yellow, greenish-yellow, yellowish-brown
- No imageStrontioruiziteraremineral · Mohs 3.5orange, brown
Strunziteraremineral · Mohs 3.5-4yellow, yellowish-brown, brown
Studenitsiteraremineral · Mohs 3.5white, colorless
Stumpfliteraremineral · Mohs 3white, gray
Sturmaniteraremineral · Mohs 2.5yellow, yellow-orange, brown- No imageSudburyiteraremineral · Mohs 3.5white, pale yellow
Sudoiteuncommonmineral · Mohs 2.5-3white, gray, greenish
Sudovikoviteraremineral · Mohs 2-3white, pale yellow- No imageSugakiiteraremineral · Mohs 3.5-4bronze, yellow
- No imageSuhailiteraremineral · Mohs 2.5-3colorless, white, pale yellow
Sulfoboriteraremineral · Mohs 3.5white, colorless, yellowish
Sulfurcommonmineral · Mohs 1.5-2.5yellow, brownish-yellow, greenish-yellow
Sulphohaliteraremineral · Mohs 3.5colorless, white, yellow
Sulvaniteraremineral · Mohs 3.5bronze, copper-red, grayish-brown
Sundiusiteraremineral · Mohs 3white, colorless
Suoluniteraremineral · Mohs 3-4white, colorless
Suredaiteraremineral · Mohs 3.5-4lead-gray
Suriteraremineral · Mohs 2.5white, pale yellow
Susanniteraremineral · Mohs 2.5white, yellow, greenish-yellow- No imageSuseinargiuiteraremineral · Mohs 2-3yellow, orange-yellow
Sussexiteraremineral · Mohs 3-4white, yellowish-white, pinkish-white- No imageSveinbergeiteraremineral · Mohs 3yellow, brown
- No imageSvornostite-(K)raremineral · Mohs 2-3yellow
- No imageSwamboite-(Nd)raremineral · Mohs 2-3yellow, yellow-orange
- No imageSwartziteraremineral · Mohs 2.5green, yellow-green
- No imageSweetiteraremineral · Mohs 3.5colorless, white, yellow
Syngeniteuncommonmineral · Mohs 2.5colorless, white, pale yellow
Szaibelyiteuncommonmineral · Mohs 3-4white, gray, yellowish-white
Szaibélyiteuncommonmineral · Mohs 3.5white, gray, yellowish
Szenicsiteraremineral · Mohs 3.5dark green, emerald green- No imageSzklaryiteraremineral · Mohs 3-4yellow, brownish-yellow
- No imageSzomolnokiteuncommonmineral · Mohs 2.5yellow, yellow-white, brownish-white
- No imageSzymańskiiteraremineral · Mohs 3white, colorless
Tabbyiteuncommonmineral · Mohs 2-3black, brown
Tacharaniteraremineral · Mohs 3-4white, colorless, pale yellow- No imageTaimyriteraremineral · Mohs 3-3.5white, pale yellow
Tainioliteraremineral · Mohs 2.5-3colorless, white, brown
Takedaiteraremineral · Mohs 3.5colorless, white
Talnakhiteraremineral · Mohs 3.5-4brass-yellow, bronze-yellow- No imageTamboiteraremineral · Mohs 2-3yellow, yellowish-orange
Tancaite-(Ce)raremineral · Mohs 3-4yellow, yellowish-orange
Tangdaniteraremineral · Mohs 2-3blue, green
Tangeiteraremineral · Mohs 3.5yellow, green, olive-green- No imageTaniajacoiteraremineral · Mohs 3-4dark green, blackish-green
Tapiaiteraremineral · Mohs 3.5colorless, white, yellow
Taranakiteraremineral · Mohs 3.5white, yellowish-white, pale yellow
Tarbuttiteraremineral · Mohs 3.5-4colorless, white, yellowish- No imageTarkianiteraremineral · Mohs 3.5steel-gray, white
Tatarinoviteraremineral · Mohs 2.5white, colorless- No imageTatarskiteraremineral · Mohs 2.5colorless, white
Teepleiteraremineral · Mohs 3-3.5colorless, white, yellow
Teineiteraremineral · Mohs 2.5blue, deep blue
Telargpaliteraremineral · Mohs 3.5steel-gray, silver-white
Telluronevskiteraremineral · Mohs 2-3lead-gray, silver-white
Telluropalladiniteraremineral · Mohs 3.5-4white, silver-white- No imageTelluroperiteraremineral · Mohs 2.5yellow, yellow-orange, brown
Temagamiteraremineral · Mohs 2.5-3white, silver-white
Tengerite-(Y)raremineral · Mohs 3.5white, yellowish-white, colorless
Tennantite-(Fe)uncommonmineral · Mohs 3-4steel-gray, iron-black
Tennantite-(Zn)uncommonmineral · Mohs 3-4steel-gray, iron-black
Tenoritecommonmineral · Mohs 3-4black, gray
Terlinguacreekiteraremineral · Mohs 2-3yellow, yellowish-orange
Terlinguaiteraremineral · Mohs 2-3yellow, sulfur-yellow, canary-yellow
Ternesiteraremineral · Mohs 3.5colorless, white, pale yellow
Terrywallaceiteraremineral · Mohs 2.5black, gray
Teruggiteraremineral · Mohs 3yellow, pale yellow
Tetra-auricuprideraremineral · Mohs 3-3.5brass yellow, golden yellow
Tetraferrianniteuncommonmineral · Mohs 2.5-3black, dark brown, dark green- No imageTetraferriphlogopiteuncommonmineral · Mohs 2.5-3brown, dark brown, yellowish-brown
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