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 1–120 of 4900 rare entries.
Abellaiteraremineral · Mohs 2white, colorless
Abelsoniteraremineral · Mohs 2-3purple, reddish-brown, pinkish-brown
Abenakiite-(Ce)raremineral · Mohs 4yellow, brown, yellow-brown
Abernathyiteraremineral · Mohs 2.5yellow, lemon yellow
Abhuriteraremineral · Mohs 2colorless, white
Abramoviteraremineral · Mohs 1.5-2lead-gray, tin-white
Abswurmbachiteraremineral · Mohs 6.5black
Abuiteraremineral · Mohs 3.5colorless, white
Acetamideraremineral · Mohs 1-1.5colorless, white, yellowish- No imageAchalaiteraremineral · Mohs 6-6.5black, brownish-black
Achávaliteraremineral · Mohs 3.5-4bronze, reddish-brown
Achondriterareigneous · Mohs 5-7gray, brown, black
Achyrophaniteraremineral · Mohs 6.5-7.5dark brown, brownish-red- No imageAcmonidesiteraremineral · Mohs 3yellow, orange-yellow
Acuminiteraremineral · Mohs 3.5colorless, white- No imageAdachiiteraremineral · Mohs 7dark green, dark brown, black
Adamsite-(Y)raremineral · Mohs 3-4white, colorless, pale yellow- No imageAddibischoffiteraremineral · Mohs 7-7.5deep red, brownish-red
Adeliteraremineral · Mohs 5green, grayish-green, yellowish-green
Admontiteraremineral · Mohs 2colorless, white- No imageAdolfpateraiteraremineral · Mohs 2.5yellow, yellow-green
Adranositeraremineral · Mohs 2-3white, yellow- No imageAdranosite-(Fe)raremineral · Mohs 2-3yellow, yellowish-orange
- No imageAdrianiteraremineral · Mohs 6.5-7.5red, brown, orange
Aeriniteraremineral · Mohs 3blue, azure blue, greenish blue
Aerugiteraremineral · Mohs 3.5green, blue-green
Aeschynite-(Ce)raremineral · Mohs 5-6black, dark brown, yellowish-brown
Aeschynite-(Nd)raremineral · Mohs 5-6black, brown, reddish-brown
Aeschynite-(Y)raremineral · Mohs 5-6black, brown, yellowish-brown
Afghaniteraremineral · Mohs 5.5-6blue, colorless, white
Afmiteraremineral · Mohs 2-3yellow, yellow-green
Afwilliteraremineral · Mohs 3colorless, white- No imageAgaiteraremineral · Mohs 3yellow, orange-yellow
- No imageAgakhanovite-(Y)raremineral · Mohs 5-6colorless, white, pale pink
Agardite-(Ce)raremineral · Mohs 3-4yellow, yellowish-green, green
Agardite-(La)raremineral · Mohs 3-4yellow, yellow-green, light green
Agardite-(Nd)raremineral · Mohs 3-4yellow, yellow-green, green
Agardite-(Y)raremineral · Mohs 3-4yellow, greenish-yellow, pale green- No imageAgmantiniteraremineral · Mohs 2.5-3dark gray, black
Agrelliteraremineral · Mohs 5.5white, gray, pinkish
Agricolaiteraremineral · Mohs 2.5white, colorless
Agrinieriteraremineral · Mohs 3orange, yellow-orange
Aguilariteraremineral · Mohs 2.5lead-gray, iron-black
Aheyliteraremineral · Mohs 5-6blue, green, blue-green
Ahlfelditeraremineral · Mohs 2.5pink, reddish-pink- No imageAhrensiteraremineral · Mohs 8dark gray, black
Aiolositeraremineral · Mohs 3.5yellow, brownish-yellow
Ajoiteraremineral · Mohs 3.5blue, greenish-blue- No imageAkaogiiteraremineral · Mohs 6black, brown
Akatoreiteraremineral · Mohs 5reddish-brown, orange-brown
Akdalaiteraremineral · Mohs 4white, colorless
Akhtenskiteraremineral · Mohs 2-3black, gray- No imageAkimotoiteraremineral · Mohs 7-8dark brown, black
- No imageAklimaiteraremineral · Mohs 5white, colorless
- No imageAkopovaiteraremineral · Mohs 2white, colorless
Akrochorditeraremineral · Mohs 3.5reddish-brown, brown, yellowish-brown
Aksaiteraremineral · Mohs 3colorless, white
Aktashiteraremineral · Mohs 3-3.5gray, black
Alacrániteraremineral · Mohs 1.5-2orange, red, yellow-orange
Alamositeraremineral · Mohs 4.5-5white, colorless
Alarsiteraremineral · Mohs 3-4white, colorless- No imageAlbanditeraremineral · Mohs 3.5-4black, brownish-black
- No imageAlbertiniiteraremineral · Mohs 2-3yellow, yellowish-orange
Albertiteraremineral · Mohs 1-2black- No imageAlbrechtschraufiteraremineral · Mohs 2yellow, yellow-green
- No imageAlburniteraremineral · Mohs 3black, dark gray
- No imageAlcaparrosaiteraremineral · Mohs 3yellow, yellowish-orange
Aldermaniteraremineral · Mohs 2colorless, white, pale yellow
Aldridgeiteraremineral · Mohs 2pale blue- No imageAleksandroviteraremineral · Mohs 4-5colorless, white
Aleksiteraremineral · Mohs 1.5-2white, lead-gray- No imageAleutiteraremineral · Mohs 2dark green, black
Alexandriteraregemstone · Mohs 8.5emerald green, red, purplish-red- No imageAlexkhomyakoviteraremineral · Mohs 3-4yellow, yellowish-orange
- No imageAlflarseniteraremineral · Mohs 5colorless, white
Alforsiteraremineral · Mohs 5colorless, white
Alfredopetroviteraremineral · Mohs 2-3colorless, white- No imageAlfredstelzneriteraremineral · Mohs 3.5colorless, white
Algodoniteraremineral · Mohs 3.5-4silver-white, steel-gray
Aliettiteraremineral · Mohs 1-2white, gray, yellowish- No imageAllabogdaniteraremineral · Mohs 6gray, white
Allactiteraremineral · Mohs 3-4dark red, reddish brown, brown
Allanite-(La)raremineral · Mohs 5.5-6black, brown, reddish-brown
Allanite-(Nd)raremineral · Mohs 5.5-6black, brown, dark brown
Allanite-(Y)raremineral · Mohs 5.5-6black, brown, reddish-brown
Allanpringiteraremineral · Mohs 3.5yellowish-brown, brown
Allargentumraremineral · Mohs 2.5-3silver-white, tin-white
Alleghanyiteraremineral · Mohs 5.5-6brownish red, reddish brown, orange brown- No imageAllendeiteraremineral · Mohs 5-6white, colorless
- No imageAllochalcoseliteraremineral · Mohs 2dark gray, black
- No imageAlloclasiteraremineral · Mohs 3.5white, steel-gray
Alloriiteraremineral · Mohs 5-6colorless, white- No imageAlluaiviteraremineral · Mohs 5-6yellow, brown, reddish-brown
- No imageAlmaruditeraremineral · Mohs 6colorless, pale yellow
Almeidaiteraremineral · Mohs 5-6black, dark brown- No imageAlnaperbøeite-(Ce)raremineral · Mohs 5-6brown, yellowish-brown
Alpersiteraremineral · Mohs 2blue, blue-green- No imageAlsakharovite-Znraremineral · Mohs 5yellow, brown
Alstoniteraremineral · Mohs 4-4.5colorless, white, gray
Altaiteraremineral · Mohs 2.5-3tin-white, yellowish-white
Alteriteraremineral · Mohs 3.5yellow, yellowish-brown, brown
Althausiteraremineral · Mohs 3.5colorless, white, gray
Althupiteraremineral · Mohs 3-4yellow, yellow-green- No imageAltisiteraremineral · Mohs 5colorless, white, pale pink
- No imageAlum-(Na)raremineral · Mohs 2colorless, white
- No imageAluminocerite-(CeCa)raremineral · Mohs 5.5brown, pinkish-brown, reddish-brown
Aluminocopiapiteraremineral · Mohs 2.5-3yellow, pale yellow, golden yellow- No imageAluminocoquimbiteraremineral · Mohs 2-3pale violet, white, colorless
- No imageAluminomagnesiohulsiteraremineral · Mohs 3.5-4black, brown
- No imageAluminopyracmoniteraremineral · Mohs 2.5colorless, white
Aluminosugiliteraremineral · Mohs 6-6.5pink, violet, reddish-purple
Alumoåkermaniteraremineral · Mohs 5-6colorless, white, gray- No imageAlumoedtolliteraremineral · Mohs 2-3white, colorless
Alumohydrocalciteraremineral · Mohs 4white, colorless, pale yellow- No imageAlumoklyuchevskiteraremineral · Mohs 3-4dark green, black
Alumotantiteraremineral · Mohs 6colorless, white, pale yellow
Alvaniteraremineral · Mohs 2-3dark green, yellowish-green, olive green- No imageAlwilkinsite-(Y)raremineral · Mohs 2yellow, greenish-yellow
Amakiniteraremineral · Mohs 2.5yellow, greenish-yellow- No imageAmamooriteraremineral · Mohs 3.5-4white, yellowish-white, colorless
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