Mohs hardness 4 rocks & minerals
Mohs hardness 4 is referenced by fluorite. Minerals at this hardness scratch with a steel knife but are too hard for a coin.
Showing 1321–1440 of 1910 rocks (page 12 of 16).
Phacopscommonfossil · Mohs 3-5brown, gray, black- No imagePharmazinciteraremineral · Mohs 4red, orange, yellow
Philipsborniteraremineral · Mohs 4.5colorless, white, pale yellow
Phillipsitecommonmineral · Mohs 4-5white, colorless, yellow- No imagePhillipsite-Cacommonmineral · Mohs 4-4.5white, colorless, yellow
Phillipsite-Kcommonmineral · Mohs 4-5white, colorless, yellow
Phillipsite-Nacommonmineral · Mohs 4-4.5white, colorless, yellowish- No imagePhilolithiteraremineral · Mohs 3.5yellow, pale yellow
Phoenicochroiteraremineral · Mohs 3-3.5cochineal-red, hyacinth-red, dark red
Phosinaite-(Ce)raremineral · Mohs 4colorless, white, pale yellow
Phosphoferriteraremineral · Mohs 3-4colorless, white, pale yellow- No imagePhosphogartrelliteraremineral · Mohs 4green, yellow-green
Phosphohedyphaneraremineral · Mohs 4colorless, white, yellow- No imagePhosphoinneliteraremineral · Mohs 4-5yellow, brown
Phosphophylliteraremineral · Mohs 3-3.5colorless, pale green, bluish green
Phosphoritecommonsedimentary · Mohs 3-5gray, brown, black
Phosphosideriteuncommonmineral · Mohs 3.5-4pink, violet, magenta- No imagePhosphowalpurgiteraremineral · Mohs 3.5yellow, yellow-orange
Phurcaliteraremineral · Mohs 3-4yellow, bright yellow- No imagePicotpauliteraremineral · Mohs 3.5bronze, copper-red
- No imagePink Fluoriteraremineral · Mohs 4pink, magenta, rose-red
Pink Marblecommonmetamorphic · Mohs 3-4pink, rose, white
Pink Pearlrarefossil · Mohs 2.5-4pink, salmon, rose- No imagePink Serpentineuncommonmineral · Mohs 2.5-5.5pink, lavender, rose
Pinnoiteraremineral · Mohs 3.5yellow, yellowish-brown, white
Pirquitasiteraremineral · Mohs 3.5-4black, gray
Pirssoniteraremineral · Mohs 3-3.5colorless, white, yellowish- No imagePittongiteraremineral · Mohs 3.5-4yellow, yellowish-brown
Pizgrischiteraremineral · Mohs 3.5lead-gray, black
Planeriteraremineral · Mohs 4white, blue, green
Platinumraremineral · Mohs 4-4.5silvery-white, light steel-gray
Platinum Nuggetsraremineral · Mohs 4-4.5silvery-white, gray
Plimeriteraremineral · Mohs 3.5-4yellow, yellow-green, brownish-yellow- No imagePliniusiteraremineral · Mohs 3.5yellow, orange, brown
- No imagePlumboagarditeraremineral · Mohs 3.5-4emerald-green, yellowish-green
Plumbogummiteuncommonmineral · Mohs 4-5colorless, white, gray
Plumbojarositeuncommonmineral · Mohs 2.5-3.5yellow, yellowish-brown, brown
Plumbopalladiniteraremineral · Mohs 4-5white, pale yellow- No imagePlumbostanniteraremineral · Mohs 4black, dark gray
Podlesnoiteraremineral · Mohs 4colorless, white
Polariteraremineral · Mohs 4-5white, gray- No imagePolezhaevaite-(Ce)raremineral · Mohs 4-4.5yellow, brown
Polhemusiteraremineral · Mohs 3.5white, gray- No imagePolkanoviteraremineral · Mohs 3.5white, silver-white
- No imagePolkoviciteraremineral · Mohs 3.5-4black
- No imagePolloneiteraremineral · Mohs 3.5lead-gray, black
Polydymiteraremineral · Mohs 4.5-5.5gray, grayish-white
Potariteraremineral · Mohs 3.5-4white, silver-white- No imagePotomac Marblecommonsedimentary · Mohs 3-4red, green, brown
Powelliteuncommonmineral · Mohs 3.5yellow, brown, greenish-yellow
Poyarkoviteraremineral · Mohs 3.5dark red, brownish-red
Preobrazhenskiteraremineral · Mohs 3.5white, colorless, yellowish-white- No imagePretuliteraremineral · Mohs 4-5colorless, white
- No imagePříbramiteraremineral · Mohs 3-3.5gray, white
Priceiteuncommonmineral · Mohs 3-3.5white, grayish, yellowish
Pringleiteraremineral · Mohs 3.5yellow, brown- No imageProberiteuncommonmineral · Mohs 3.5white, colorless, gray
Probertiteuncommonmineral · Mohs 3.5colorless, white, gray
Prosopiteraremineral · Mohs 4.5white, colorless, gray- No imageProsperiteraremineral · Mohs 3.5white, colorless
Przhevalskiteraremineral · Mohs 3-4yellow, yellowish-orange
Pseudomalachiteuncommonmineral · Mohs 4-4.5dark green, emerald green, blackish green- No imagePseudomertieiteraremineral · Mohs 3.5white, pale yellow
Pseudowollastoniteraremineral · Mohs 4.5-5white, colorless, gray
Pucheriteraremineral · Mohs 3-4red, orange, brownish-red- No imagePuniniteraremineral · Mohs 3.5-4yellow, brownish-yellow
Purple Fluoritecommonmineral · Mohs 4purple, violet, lavender
Purpuriteuncommonmineral · Mohs 4-4.5deep purple, violet, brown- No imagePutoraniteraremineral · Mohs 3.5bronze, brownish-yellow
- No imagePyatenkoite-(Y)raremineral · Mohs 4yellow, brown, white
Pyritized Ammoniteuncommonfossil · Mohs 3-3.5brass yellow, metallic gold, bronze- No imagePyritized Gastropodsuncommonfossil · Mohs 3.5-4brass yellow, gold, brown
Pyrobeloniteraremineral · Mohs 3.5dark red, orange-red, brownish-red
Pyromorphiteuncommonmineral · Mohs 3.5-4green, yellow, brown
Pyrosmalite-(Fe)raremineral · Mohs 4.5brown, dark brown, yellowish-brown
Pyrosmalite-(Mn)raremineral · Mohs 4-4.5brown, brownish-red, yellowish-brown
Pyrrhotitecommonmineral · Mohs 3.5-4.5bronze, brown, red-brown- No imageQaqarssukite-(Ce)raremineral · Mohs 4-4.5colorless, white, yellowish-white
Quadratiteraremineral · Mohs 3.5red, brownish-red- No imageQuadruphiteraremineral · Mohs 4-5yellow, brown, colorless
Quatrandoriteraremineral · Mohs 3-3.5lead-gray, blackish-gray
Queititeraremineral · Mohs 3.5colorless, white, pale yellow- No imageQuijarroiteraremineral · Mohs 3-3.5steel-gray, white
- No imageRaadeiteraremineral · Mohs 4-5yellow, brown, colorless
- No imageRadioactive Mineralsuncommonmineral · Mohs 1-6yellow, green, black
Rajiteraremineral · Mohs 3.5colorless, white
Ralphcannoniteraremineral · Mohs 3.5steel-gray, black- No imageRamanite-(Rb)raremineral · Mohs 3.5brown, yellowish-brown
Rambergiteraremineral · Mohs 3-4pink, red, brown
Ramikite-(Y)raremineral · Mohs 4.5yellow, brownish-yellow, brown
Rankamaiteraremineral · Mohs 3-4yellow, colorless, white
Rappolditeraremineral · Mohs 4-5white, colorless, pale yellow
Red Marblecommonmetamorphic · Mohs 3-4red, white, pink- No imageRed Ochercommonmineral · Mohs 1-5red, reddish-brown
- No imageRed Pearlrarefossil · Mohs 2.5-4red, pink, brownish-red
Reddingiteraremineral · Mohs 3-3.5pink, brownish-pink, yellowish-white
Redonditeraremineral · Mohs 3.5-4.5yellow, green, white- No imageReederite-(Y)raremineral · Mohs 3.5yellow, yellow-brown, brown
Reichenbachiteraremineral · Mohs 4dark green, blackish green
Reineriteraremineral · Mohs 4.5green, yellow-green
Rémondite-(Ce)raremineral · Mohs 4yellow, brown, colorless
Rémondite-(La)raremineral · Mohs 3.5-4yellow, brown, colorless
Renieriteraremineral · Mohs 4.5bronze, reddish-brown
Retzian-(Ce)raremineral · Mohs 4reddish brown, brown- No imageRetzian-(La)raremineral · Mohs 4brown, reddish-brown
- No imageRetzian-(Nd)raremineral · Mohs 4brown, reddish-brown
Reyeriteraremineral · Mohs 3-4white, colorless, pale yellow
Rhabdophane-(Ce)uncommonmineral · Mohs 3.5white, yellow, pink
Rhabdophane-(La)raremineral · Mohs 3.5white, gray, yellowish- No imageRhabdophane-(Nd)raremineral · Mohs 3.5pink, white, yellow
Rhabdophane-(Y)raremineral · Mohs 3.5white, gray, yellow
Rhodesiteraremineral · Mohs 3-4white, colorless
Rhodochrositeuncommonmineral · Mohs 3.5-4pink, red, rose-red
Rhodostanniteraremineral · Mohs 4black, gray
Rhodplumsiteraremineral · Mohs 3-3.5red, pink, brownish-red- No imageRichelliteraremineral · Mohs 3.5yellow, brownish-yellow, yellow-brown
- No imageRicolitecommonmineral · Mohs 3-5green, yellow, black
Rilanditeraremineral · Mohs 3-4dark red, reddish-brown
Rimkorolgiteraremineral · Mohs 3-4colorless, white, pale pink
Rittmanniteraremineral · Mohs 4.5yellow, brown, reddish-brown
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