Rare rocks & minerals
Rare rocks and minerals occur in only a handful of localities worldwide, or in such small quantities that good specimens command serious money. These are the trophy pieces of cabinet collectors.
Showing 3241–3360 of 4900 rare entries (page 28 of 41).
- No imageOrthominasragriteraremineral · Mohs 2.5blue, light blue
Orthopinakioliteraremineral · Mohs 6black, brownish-black
Orthoserpieriteraremineral · Mohs 2blue, pale blue, greenish blue- No imageOrthowalpurgiteraremineral · Mohs 3-4yellow, orange-yellow
- No imageOsakaiteraremineral · Mohs 2colorless, white
Osarizawaiteraremineral · Mohs 3.5yellow, greenish-yellow- No imageOsarsiteraremineral · Mohs 6lead-gray, silver-white
- No imageOsborniteraremineral · Mohs 8-9gold, yellow
- No imageOscarkempffiteraremineral · Mohs 2.5-3lead-gray, black
- No imageOskarssoniteraremineral · Mohs 1-2white, colorless
Osumiliteraremineral · Mohs 5-5.5blue, blue-violet, colorless- No imageOsumilite-(Mg)raremineral · Mohs 7colorless, pale blue, blue-gray
- No imageOswaldpeetersiteraremineral · Mohs 2yellow, greenish-yellow
Otaviteraremineral · Mohs 3.5white, gray, yellowish
Otjisumeiteraremineral · Mohs 3yellow, pale yellow
Ottemanniteraremineral · Mohs 1.5-2yellow, orange-yellow
Ottensiteraremineral · Mohs 2red, orange-red
Ottohahniteraremineral · Mohs 2yellow, yellowish-orange- No imageOttoiteraremineral · Mohs 2-3yellow, pale yellow
Otwayiteraremineral · Mohs 2.5bright green, pale green
Oulankaiteraremineral · Mohs 3.5-4brass-yellow, grayish-yellow
Ourayiteraremineral · Mohs 2.5lead-gray, steel-gray
Oursiniteraremineral · Mohs 2-3yellow, yellowish-green
Ovamboiteraremineral · Mohs 3-3.5grayish white- No imageOveriteraremineral · Mohs 4colorless, white, pale yellow
- No imageOwensiteraremineral · Mohs 3.5brass-yellow, bronze
Owyheeiteraremineral · Mohs 2.5steel-gray, silver-white, gray
Oxammiteraremineral · Mohs 2.5white, colorless
Oxo-magnesio-hastingsiteraremineral · Mohs 5-6black, dark green, brown- No imageOxo-mangani-leakeiteraremineral · Mohs 6dark blue, dark violet
- No imageOxy-chromium-draviteraremineral · Mohs 7dark green, emerald green
- No imageOxy-draviteraremineral · Mohs 7dark brown, reddish-brown, black
- No imageOxy-schorlraremineral · Mohs 7black, brownish-black
Oxy-vanadium-draviteraremineral · Mohs 7dark brown, black, dark yellow-brown- No imageOxycalciomicroliteraremineral · Mohs 5-5.5yellow, brown, reddish-brown
Oxycalciopyrochloreraremineral · Mohs 5-5.5brown, yellowish-brown, black
Oxycalcioroméiteraremineral · Mohs 5-5.5yellow, brown, yellow-brown- No imageOxykinoshitaliteraremineral · Mohs 2.5-3dark brown, reddish brown
- No imageOxynatromicroliteraremineral · Mohs 5-5.5yellow, brown, colorless
- No imageOxyphlogopiteraremineral · Mohs 2.5-3brown, reddish-brown, dark-brown
- No imageOxyplumbopyrochloreraremineral · Mohs 5-5.5yellow, brown, reddish-brown
Oxyplumboroméiteraremineral · Mohs 5-5.5yellow, brown, colorless- No imageOxystannomicroliteraremineral · Mohs 5-5.5yellow, brown, reddish-brown
- No imageOxystibiomicroliteraremineral · Mohs 5-5.5yellow, brown, white
- No imageOxyvaniteraremineral · Mohs 5.5-6black, brownish black
Oyeliteraremineral · Mohs 4white, colorless
Oyoniteraremineral · Mohs 3-4black, dark brown
Pääkköneniteraremineral · Mohs 2-3lead-gray, silver-gray- No imagePaariteraremineral · Mohs 3.5lead-gray, iron-black
Pabstiteraremineral · Mohs 6white, colorless, gray- No imagePaceiteraremineral · Mohs 2colorless, white
- No imagePackratiteraremineral · Mohs 2.5yellow, orange, brown
Paddlewheeliteraremineral · Mohs 2yellow, greenish-yellow
Padĕraiteraremineral · Mohs 2.5steel-gray, lead-gray- No imagePadmaiteraremineral · Mohs 3-4white, pale yellow
Padparadscha Sapphireraregemstone · Mohs 9pinkish-orange, orangey-pink, salmon- No imagePaganoiteraremineral · Mohs 4yellow, yellowish-green, brown
- No imagePahasapaiteraremineral · Mohs 3yellow, pink, white
Painiteraremineral · Mohs 8dark red, brownish-red, orange-brown- No imagePakhomovskyiteraremineral · Mohs 2white, colorless, pale yellow
Palarstanideraremineral · Mohs 3-4brass-yellow, golden-yellow
Palenzonaiteraremineral · Mohs 6-6.5orange, reddish-orange
Palermoiteraremineral · Mohs 5.5colorless, white, pale yellow- No imagePalladiniteraremineral · Mohs 2yellow, orange, brown
Palladiumraremineral · Mohs 4.75-5silver-white, pale gray- No imagePalladoarsenideraremineral · Mohs 3.5-4tin-white, light gray
- No imagePalladobismutharsenideraremineral · Mohs 3.5white, gray
- No imagePalladodymiteraremineral · Mohs 5white, light gray
- No imagePalladosilicideraremineral · Mohs 5-5.5silver-white, gray
Palladseiteraremineral · Mohs 3-4white, gray
Pallasiterareigneous · Mohs 5-6yellow, green, brown- No imagePalmieriteraremineral · Mohs 3colorless, white, gray
Pampaloiteraremineral · Mohs 1.5yellow, brownish-yellow- No imagePanasqueiraiteraremineral · Mohs 4yellow, brownish-yellow
- No imagePandoraite-Bararemineral · Mohs 2-3white, colorless
- No imagePandoraite-Cararemineral · Mohs 2yellow, pale yellow
- No imagePanethiteraremineral · Mohs 3.5yellow, yellowish-brown
- No imagePanguiteraremineral · Mohs nulldeep reddish-brown, black
- No imagePanichiiteraremineral · Mohs 2.5yellow, white, colorless
Panunziteraremineral · Mohs 6colorless, white- No imagePaoloviteraremineral · Mohs 3.5-4white, silver-white
Papagoiteraremineral · Mohs 3-4bright blue, sky blue
Papikeiteraremineral · Mohs 5-6black, dark brown- No imagePaqueiteraremineral · Mohs 5yellow, yellow-brown
Para-alumohydrocalciteraremineral · Mohs 3white, colorless, pale yellow- No imageParaberzeliiteraremineral · Mohs 5-6yellow, yellowish-brown
- No imageParabrandtiteraremineral · Mohs 3.5colorless, white, yellowish-white
Parabutleriteraremineral · Mohs 2.5orange, yellow
Paracelsianraremineral · Mohs 6colorless, white, gray
Paracoquimbiteraremineral · Mohs 2-3violet, pale violet, white
Paracostibiteraremineral · Mohs 3.5-4white, gray
Paradamiteraremineral · Mohs 3.5yellow, colorless, white- No imageParadocrasiteraremineral · Mohs 3-4silver-white, tin-white
Parádsasváriteraremineral · Mohs 4white, colorless- No imageParaershoviteraremineral · Mohs 2-3yellow, brownish-yellow
Parafiniukiteraremineral · Mohs 5colorless, white, pale yellow
Parafransoletiteraremineral · Mohs 3white, colorless- No imageParageorgbokiiteraremineral · Mohs 3.5dark red, brown
- No imageParagersdorffiteraremineral · Mohs 5.5silver-white, steel-gray, lead-gray
Paraguanajuatiteraremineral · Mohs 2-2.5lead-gray, steel-gray
Parahopeiteraremineral · Mohs 3.5colorless, white, yellowish-white
Paraiba Tourmalineraregemstone · Mohs 7-7.5neon blue, neon green, violet
Parakeldyshiteraremineral · Mohs 5.5colorless, white, pinkish- No imageParakuzmenkoite-Feraremineral · Mohs 5brown, yellow-brown
- No imageParalabuntsovite-Mgraremineral · Mohs 5-6yellow, orange, brown
- No imageParalammeriteraremineral · Mohs 3yellow, brownish-yellow
Paralaurioniteraremineral · Mohs 2.5colorless, white
Paralomonosoviteraremineral · Mohs 3-4brown, yellowish-brown, reddish-brown
Paralstoniteraremineral · Mohs 4.5colorless, white, yellow
Paramelaconiteraremineral · Mohs 3black, brownish-black
Paramendozaviliteraremineral · Mohs 2yellow, orange-yellow
Paramontroseiteraremineral · Mohs 4-5black- No imageParanatisiteraremineral · Mohs 5colorless, white, gray
- No imageParanatroliteraremineral · Mohs 5white, colorless, pale yellow
Paraniite-(Y)raremineral · Mohs 3-4yellow, yellowish-orange- No imageParaotwayiteraremineral · Mohs 3green, yellow-green
Parapierrotiteraremineral · Mohs 2dark gray, lead gray- No imagePararaisaiteraremineral · Mohs 2-3blue, green
Pararammelsbergiteraremineral · Mohs 2-3white, light pink, silver white
Pararealgarraremineral · Mohs 1.5-2orange, yellow-orange
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