Common rocks & minerals
Common rocks and minerals show up routinely in field collecting and on dealer tables. They are the right place to start a reference collection — most are inexpensive, durable, and well-documented.
Showing 481–600 of 780 common entries (page 5 of 7).
Montmorillonitecommonmineral · Mohs 1-2white, gray, yellow
Monzonitecommonigneous · Mohs 6-7gray, light gray, pinkish gray- No imageMookaitecommonmineral · Mohs 6.5-7red, yellow, cream
Moonstonecommongemstone · Mohs 6white, colorless, blue
Moqui Marblescommonmineral · Mohs 5.5-6.5brown, reddish-brown, black
Mordenitecommonmineral · Mohs 3-4white, colorless, yellow
Morrisonitecommonmineral · Mohs 6.5-7pink, tan, orange
Mosasaur Toothcommonfossil · Mohs 3-5black, brown, tan
Moss Agatecommonmineral · Mohs 6.5-7white, green, brown- No imageMoss Opalcommonmineral · Mohs 5.5-6.5white, clear, green
Mottramitecommonmineral · Mohs 3-3.5dark green, olive green, blackish green
Mozarkitecommonmineral · Mohs 6.5-7red, pink, white
Mudstonecommonsedimentary · Mohs 2-3gray, brown, red
Muscovitecommonmineral · Mohs 2.5-3colorless, yellow, brown- No imageMuseumitecommonmineral
Mylonitecommonmetamorphic · Mohs 5-7gray, black, white- No imageMystic Topazcommongemstone · Mohs 8rainbow, multicolored
Native Coppercommonmineral · Mohs 2.5-3copper-red, reddish-brown, tarnished-brown
Native Goldcommonmineral · Mohs 2.5-3gold, brass-yellow
Native Sulfurcommonmineral · Mohs 1.5-2.5yellow, yellow-orange, yellow-green- No imageNative Sulphurcommonmineral · Mohs 1.5-2.5yellow, yellow-orange, yellow-brown
Natrojarositecommonmineral · Mohs 2.5-3.5yellow, yellow-brown, golden-yellow
Natrolitecommonmineral · Mohs 5-5.5white, colorless, gray
Natroncommonmineral · Mohs 1-1.5colorless, white, gray
Nautiloidcommonfossilbrown, gray, white- No imageNegevitecommonmineral · Mohs 2.5-3.5green, brown, yellow
Nephelinecommonmineral · Mohs 5.5-6white, gray, yellowish
Nepheline Syenitecommonigneous · Mohs 5.5-6gray, white, pink
Nephritecommonmineral · Mohs 6-6.5green, white, yellow
Nephrite Jadecommonmineral · Mohs 6-6.5green, white, yellow
Nitrocalcitecommonmineral · Mohs 1.5-2white, colorless, gray
Nodulescommonsedimentarygray, brown, black- No imageNodules Filled With Opalcommonfossil · Mohs 5.5-6.5white, gray, brown
Nontronitecommonmineral · Mohs 1.5-2yellow, green, yellowish-green
Novaculitecommonsedimentary · Mohs 7white, gray, black
Obsidiancommonigneous · Mohs 5-6black, dark green, mahogany- No imageObsidian Nodulescommonmineral · Mohs 5-5.5black, brown, gray
- No imageOchercommonmineral · Mohs 1-2yellow, brown, red
- No imageOchoco Jaspercommonfossil · Mohs 6.5-7red, orange, brown
Octahedral Fluoritecommonmineral · Mohs 4purple, blue, green- No imageOkieitecommonmineral · Mohs 6.5-7yellow, brown, orange
Oligoclasecommonmineral · Mohs 6-6.5white, colorless, gray
Olivinecommonmineral · Mohs 6.5-7olive green, yellow-green, brownish green
Onyxcommonmineral · Mohs 6.5-7black, white, banded
Oolitecommonsedimentary · Mohs 3white, gray, tan- No imageOolitic Agatescommonmineral · Mohs 6.5-7white, gray, brown
Oolitic Limestonecommonsedimentary · Mohs 3white, tan, gray
Opalcommonmineral · Mohs 5.5-6.5white, black, colorless- No imageOpal-quartzcommonmineral · Mohs 6.5-7white, gray, brown
Opalitecommonmineral · Mohs 5.5-6.5white, blue, milky
Opalized Woodcommonfossil · Mohs 5.5-6.5brown, red, yellow
Optical Calcitecommonmineral · Mohs 3colorless, white- No imageOrange Agatecommonmineral · Mohs 6.5-7orange, red-orange, yellow-orange
Orbicular Jaspercommonmineral · Mohs 6.5-7green, yellow, brown
Orecommonmineralvariable
Oregon Jadecommonmineral · Mohs 6.5-7green, olive-green, dark green
Orpimentcommonmineral · Mohs 1.5-2yellow, orange, brownish-yellow
Orthocerascommonfossil · Mohs 3-4black, brown, gray
Orthoclasecommonmineral · Mohs 6white, colorless, flesh-red- No imageOwyhee Jaspercommonmineral · Mohs 6.5-7blue, brown, cream
- No imageOwyhee Thundereggcommonmineral · Mohs 6.5-7blue, purple, white
Palygorskitecommonmineral · Mohs 2-3white, gray, yellowish-white
Paragonitecommonmineral · Mohs 2.5colorless, white, yellowish
Pearlscommonfossil · Mohs 2.5-4.5white, cream, pink- No imagePecos Diamondscommonmineral · Mohs 7clear, colorless, red
Pegmatitecommonigneous · Mohs 6-7white, gray, pink
Pentlanditecommonmineral · Mohs 3.5-4bronze-yellow, brownish-yellow
Peridotcommongemstone · Mohs 6.5-7olive-green, yellow-green, lime-green
Peridotitecommonigneous · Mohs 6-7dark green, olive green, yellow-green
Perlitecommonigneous · Mohs 5-5.5gray, white, greenish
Perthitecommonmineral · Mohs 6white, gray, pink
Petoskey Stonescommonfossil · Mohs 3-4gray, brown, tan
Petrified Algaecommonfossil · Mohs 6.5-7tan, brown, gray- No imagePetrified Coralcommonfossil · Mohs 6.5-7white, gray, brown
Petrified Palmcommonfossil · Mohs 6.5-7brown, tan, black
Petrified Palm Woodcommonfossil · Mohs 6.5-7tan, brown, black
Petrified Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Phacopscommonfossil · Mohs 3-5brown, gray, black
Phantom Quartzcommonmineral · Mohs 7colorless, white, gray
Philippinitecommonmineral · Mohs 5.5-6.5black, dark brown
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
Phlogopitecommonmineral · Mohs 2.5-3brown, yellowish-brown, reddish-brown
Phosphoritecommonsedimentary · Mohs 3-5gray, brown, black
Phyllitecommonmetamorphic · Mohs 1-2silvery-gray, greenish-gray, black
Picromeritecommonmineral · Mohs 2.5white, colorless, pale yellow
Picture Jaspercommonmineral · Mohs 6.5-7brown, tan, cream
Pigeonitecommonmineral · Mohs 5.5-6brown, brownish-green, black- No imagePink Agatecommonmineral · Mohs 6.5-7pink, rose, salmon
- No imagePink Calcitecommonmineral · Mohs 3pink, pale pink, rose
Pink Feldsparcommonmineral · Mohs 6pink, salmon, flesh-colored
Pink Marblecommonmetamorphic · Mohs 3-4pink, rose, white- No imagePink Opalcommonmineral · Mohs 5.5-6.5pink, rose-pink
Pink Rhodonitecommonmineral · Mohs 5.5-6.5pink, reddish-pink, brown
Plagioclasecommonmineral · Mohs 6-6.5white, gray, colorless
Plant Fossilcommonfossilbrown, black, gray
Plume Agatecommonmineral · Mohs 6.5-7white, gray, brown
Polyhalitecommonmineral · Mohs 2.5-3colorless, white, gray- No imagePompom Agatecommonmineral · Mohs 6.5-7white, gray, brown
Poppy Jaspercommonmineral · Mohs 6.5-7red, yellow, brown- No imagePotomac Marblecommonsedimentary · Mohs 3-4red, green, brown
Prairie Agatecommonmineral · Mohs 6.5-7yellow, brown, orange
Prehnitecommonmineral · Mohs 6-6.5green, yellow-green, white- No imagePriday Plume Agatecommonmineral · Mohs 6.5-7red, pink, white
Priday Thundereggcommonfossil · Mohs 6.5-7red, brown, white
Psilomelanecommonmineral · Mohs 5-6black, bluish-black, gray
Puddingstonecommonsedimentarymulticolored, gray, red
Pumicecommonigneous · Mohs 5.5-6white, gray, cream- No imagePurple Agatecommonmineral · Mohs 6.5-7purple, violet, lavender
Purple Fluoritecommonmineral · Mohs 4purple, violet, lavender- No imagePurple Lepidolitecommonmineral · Mohs 2.5-3purple, lavender, lilac
Pyritecommonmineral · Mohs 6-6.5brass-yellow, pale-gold
Pyrite Cubescommonmineral · Mohs 6-6.5brass-yellow, gold
Pyrolusitecommonmineral · Mohs 6-6.5black, bluish-black, dark gray
Pyropecommonmineral · Mohs 7-7.5red, purplish-red, orangey-red- No imagePyrope Garnetcommongemstone · Mohs 7-7.5deep red, purplish-red, reddish-orange
Pyrophyllitecommonmineral · Mohs 1-2white, gray, pale green
Pyroxenecommonmineral · Mohs 5-6black, dark green, brown
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