Blue rocks & minerals
Blue rocks and minerals owe their color to copper, cobalt, or charge-transfer effects between iron and titanium. Blues are uncommon in rock-forming minerals, so a vivid blue is worth a closer look.
Showing 121–240 of 278 blue rocks (page 2 of 3).
Aphthitaliteuncommonmineral · Mohs 3blue, colorless, green
Argentopyriteraremineral · Mohs 3.5-4blue, bronze brown, green
Arsenocrandalliteraremineral · Mohs ~5.5blue green, blue- No imageArsenohopeiteraremineral · Mohs 3colorless, blue
Arsenoliteuncommonmineral · Mohs 1.5white, blue, light yellow
Arupiteraremineral · Mohs 1.5-2turquoise blue, blue- No imageArzruniteraremineral · Mohs 2.5blue, bluish green
Ashburtoniteraremineral · Mohs 3-4blue- No imageAsimowiteraremineral · Mohs 6blue, pale blue
Astrocyanite-(Ce)raremineral · Mohs 2-3blue, bright blue, blue green
Aubertiteraremineral · Mohs 2-3blue, azure
Balmorhea Blue Agateuncommonmineral · Mohs 6.5-7blue, gray, white
Banded Agatecommonmineral · Mohs 6.5-7white, gray, blue- No imageBarlowiteraremineral · Mohs 2-2.5blue
- No imageBarroisiteraremineral · Mohs 5-6blue
Blue Agatecommonmineral · Mohs 6.5-7blue, white, gray
Blue Agate Geodecommonmineral · Mohs 6.5-7blue, white, gray
Blue Amphibolecommonmineral · Mohs 5-6blue, blue-gray, lavender-blue
Blue Apatitecommonmineral · Mohs 5blue, blue-green, teal
Blue Baritecommonmineral · Mohs 3-3.5blue, colorless, white
Blue Calcitecommonmineral · Mohs 3blue, pale blue, grayish blue
Blue Chertcommonmineral · Mohs 6.5-7blue, gray-blue, light blue
Blue Dumortieriteuncommonmineral · Mohs 7-8.5blue, violet-blue, reddish-brown
Blue Fluorapatiteuncommonmineral · Mohs 5blue, blue-green, teal
Blue Fluoriteuncommonmineral · Mohs 4blue, deep blue, sky blue- No imageBlue Jaspercommonmineral · Mohs 6.5-7blue, gray-blue, dark blue
Blue Kyanitecommonmineral · Mohs 4.5-7blue, light blue, deep blue
Blue Quartzcommonmineral · Mohs 7blue, grayish-blue, lavender-blue
Blue Silicified Coraluncommonfossil · Mohs 6.5-7blue, gray, white
Blue Vivianiteuncommonmineral · Mohs 1.5-2blue, green
Bluestonecommonsedimentary · Mohs 3-7blue, gray, bluish-gray
Bonattiteraremineral · Mohs 2blue
Boothiteraremineral · Mohs 2-2.5blue
Brucitecommonmineral · Mohs 2.5white, blue, gray- No imageBrumadoiteraremineral · Mohs 3blue
Burangaiteraremineral · Mohs 5blue, greenish blue
Buttgenbachiteraremineral · Mohs 3blue, azure
Byströmiteraremineral · Mohs ~7blue
Caledoniteraremineral · Mohs 2.5-3blue, blue green, green
Caracoliteraremineral · Mohs 4.5blue, colorless, greenish gray
Carbonatecyanotrichiteraremineral · Mohs <2blue, greenish blue, azure blue
Carnallitecommonmineral · Mohs 2.5white, blue, colorless
Catapleiiteuncommonmineral · Mohs 5.5-6colorless, blue, brown
Celestite Concretioncommonmineral · Mohs 3-3.5blue, white, colorless
Cerchiaraite-(Al)raremineral · Mohs ~4.5blue, greenish blue, bluish green
Ceruleiteraremineral · Mohs 5-6blue, deep blue
Chalcedony Geodecommonmineral · Mohs 6.5-7white, gray, blue
Chalcedony Nodulecommonmineral · Mohs 6.5-7white, gray, blue
Chalcoalumiteuncommonmineral · Mohs 2.5blue, blue gray, greenish blue
Chalcocyaniteraremineral · Mohs 3.5blue, brown, green
Chalcophaniteuncommonmineral · Mohs 2.5black, blue, bluish black
Clam Geodecommonfossil · Mohs 6.5-7white, gray, brown
Claraiteraremineral · Mohs ~2blue
Claringbulliteraremineral · Mohs 3blue, light blue- No imageComblainiteraremineral · Mohs 2blue, turquoise
- No imageCubo-icecommonmineral · Mohs 1.5colorless, white, blue
Cuprorivaiteraremineral · Mohs ~5blue
Darapiositeraremineral · Mohs 5colorless, blue, brown
Devillineuncommonmineral · Mohs 2.5blue, blue green, blue white
Dickitecommonmineral · Mohs 2-2.5white, blue, colorless
Digeniteuncommonmineral · Mohs 2.5-3dark blue, blue, black
Drusy Quartzcommonmineral · Mohs 7colorless, white, gray
Dumortieriteuncommonmineral · Mohs 7-8.5blue, brown, violet
Dusmatoviteraremineral · Mohs 4.5blue, dirty blue, violet brown
Effenbergeriteraremineral · Mohs 4-5blue
Endelliteuncommonmineral · Mohs 1-2blue, brown, colorless
Epididymiteraremineral · Mohs 5.5white, colorless, gray
Euclaseraremineral · Mohs 7.5colorless, blue, white
Eudidymiteraremineral · Mohs 6blue, colorless, violet
Evansiteuncommonmineral · Mohs 3-4colorless, white, yellow
Ferro-glaucophaneraremineral · Mohs 6-6.5blue, bluish gray- No imageFire Pearlrarefossil · Mohs 2.5-4.5white, cream, iridescent
Fluorapatitecommonmineral · Mohs 5colorless, sea-green, violet
Fluorellestaditeraremineral · Mohs 4.5blue, pale bluish green
Fluorescent Calcitecommonmineral · Mohs 3white, colorless, yellow- No imageFluoro-nybøiteraremineral · Mohs 5-6blue, violet, greenish-blue
- No imageFluoro-pedriziteraremineral · Mohs 7green, blue, violet
Fluoro-riebeckiteuncommonmineral · Mohs 5-6blue, dark blue, blue-black
Gainesiteraremineral · Mohs 4blue
Gillulyiteraremineral · Mohs 2-2.5dark red, red, maroon
Goslaritecommonmineral · Mohs 2-2.5colorless, blue, brown
Gray Baritecommonmineral · Mohs 3-3.5gray, white, colorless
Greigiteuncommonmineral · Mohs 4-4.5blue, blue black, bronze
Guanacoiteraremineral · Mohs 3blue, pale blue
Hedyphaneraremineral · Mohs 4.5white, blue, gray white
Holmquistiteraremineral · Mohs 5-6violet, blue, light blue
Hydrowoodwarditeraremineral · Mohs 2blue, pale blue
Hydroxylherderiteraremineral · Mohs 5-5.5colorless, blue, blue green
Ilsemanniteuncommonmineral · Mohs 5.5-6blue, blue black, black
Imogoliteuncommonmineral · Mohs 2-3yellowish white, light brownish yellow, blue
Isseliteraremineral · Mohs 2.5blue- No imageItoigawaiteraremineral · Mohs 5-5.5blue
- No imageJacquesdietrichiteraremineral · Mohs 2blue
Julieniteraremineral · Mohs 2blue
Kainitecommonmineral · Mohs 2.5-3colorless, blue, violet- No imageKlöchiteraremineral · Mohs 7blue
Kröhnkiteuncommonmineral · Mohs 2.5-3blue, dark sky blue, greenish blue
Ktenasiteraremineral · Mohs 2-2.5blue, blue green, green
Kulaniteraremineral · Mohs ~4blue, blue green, green
Kyanite Bladecommonmineral · Mohs 4.5-7blue, white, gray
Laurentthomasiteraremineral · Mohs 6blue, blue-green
Lavendulanuncommonmineral · Mohs 2.5lavender blue, blue, greenish blue
Lawsoniteuncommonmineral · Mohs 6colorless, white, gray- No imageLeland Blueigneousblue, gray, green
Likasiteraremineral · Mohs 2blue
Litidioniteraremineral · Mohs 5-6blue, white
Luetheiteraremineral · Mohs 3blue, greenish, light green
Magnesioaubertiteraremineral · Mohs 2-3blue
Mahnertiteraremineral · Mohs 2-3blue, emerald green
Mapimiteraremineral · Mohs 3blue, green
Matioliiteraremineral · Mohs ~5blue, colorless
Meieraniteraremineral · Mohs 5.5blue- No imageMiddlebackiteraremineral · Mohs ~2blue
Minasragriteraremineral · Mohs 1-2blue
Moissaniteraremineral · Mohs 9.5colorless, blue, green
Molinelloiteraremineral · Mohs 3blue, deep blue- No imageMontetrisaiteraremineral · Mohs 2-3blue
Moolooiteraremineral · Mohs 2blue, green
Mrázekiteraremineral · Mohs 2-3blue, cerulean blue- No imageNatroglaucoceriniteraremineral · Mohs 2blue, greenish-blue
