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 2041–2160 of 4900 rare entries (page 18 of 41).
Jalpaiteraremineral · Mohs 2-2.5lead-gray, iron-black
Jamboriteraremineral · Mohs 2green, yellowish-green
Jamesiteraremineral · Mohs 4-5yellow, brownish-yellow
Jancheviteraremineral · Mohs 3yellow, yellowish-orange
Jangguniteraremineral · Mohs 3-4black, dark brown
Janhaugiteraremineral · Mohs 5-6orange, brown
Jankovićiteraremineral · Mohs 1.5-2red, orange- No imageJarandoliteraremineral · Mohs 3.5white, colorless
Jarliteraremineral · Mohs 3.5-4colorless, white, gray- No imageJarosewichiteraremineral · Mohs 3-4dark red, brownish-red
Jaskólskiiteraremineral · Mohs 3.5lead-gray, tin-white
Jasmunditeraremineral · Mohs 3.5yellow, brownish-yellow- No imageJasrouxiteraremineral · Mohs 2.5-3gray, dark gray, lead-gray
Jeanbandyiteraremineral · Mohs 3-4yellow, yellowish-brown, brown- No imageJeankempiteraremineral · Mohs 2-3white, colorless
- No imageJedwabiteraremineral · Mohs 3.5-4silver-white, gray
- No imageJeffbeniteraremineral · Mohs 6colorless, white
- No imageJeffreyiteraremineral · Mohs 5white, colorless, pale yellow
Jenniteraremineral · Mohs 2.5white, pink, brownish
Jenseniteraremineral · Mohs 3.5blue, greenish-blue- No imageJentschiteraremineral · Mohs 3-3.5lead-gray, black
Jeppeiteraremineral · Mohs 6black, brown
Jeremejeviteraremineral · Mohs 6.5-7colorless, pale blue, yellow
Jerrygibbsiteraremineral · Mohs 6red, orange, yellow
Jervisiteraremineral · Mohs 6green, yellowish-green- No imageJežekiteraremineral · Mohs 3.5white, colorless
Jianshuiiteraremineral · Mohs 1-2black, brownish black- No imageJimboiteraremineral · Mohs 6yellow, brown, colorless
Jimthompsoniteraremineral · Mohs 5-6pink, brown, yellowish-brown
Jinshajiangiteraremineral · Mohs 3-4brown, yellow-brown, dark brown
Joanneumiteraremineral · Mohs 2blue, greenish-blue
Joaquinite-(Ce)raremineral · Mohs 5-5.5honey-yellow, brown, orange-brown- No imageJoegoldsteiniteraremineral · Mohs 5-6black
- No imageJoëlbruggeriteraremineral · Mohs 3yellow, yellowish-green
- No imageJoesmithiteraremineral · Mohs 4-5dark brown, brownish black, reddish brown
Johachidoliteraremineral · Mohs 7.5colorless, white, yellowish
Johanniteraremineral · Mohs 2emerald-green, apple-green, yellowish-green
Johannseniteraremineral · Mohs 6light brown, clove brown, grayish green
Johilleriteraremineral · Mohs 3.5yellow, yellow-green
Johnbaumiteraremineral · Mohs 5white, colorless, pinkish-white- No imageJohninnesiteraremineral · Mohs 4pink, brownish pink
- No imageJohnsenite-(Ce)raremineral · Mohs 5-6yellow, brown, colorless
Johnsomervilleiteraremineral · Mohs 4-5yellow, brown, pinkish-brown- No imageJohntomaiteraremineral · Mohs 4-5dark brown, reddish-brown
Johnwalkiteraremineral · Mohs 3.5yellow, brown
Jôkokuiteraremineral · Mohs 2-3pink, pale pink, colorless- No imageJoliotiteraremineral · Mohs 2yellow, orange-yellow
- No imageJolliffeiteraremineral · Mohs 5-6white, silver-white
- No imageJonassoniteraremineral · Mohs 2.5lead-gray, silver-white
- No imageJonesiteraremineral · Mohs 3-4colorless, white, pale yellow
- No imageJoosteiteraremineral · Mohs 4black, brown
Jordaniteraremineral · Mohs 3lead-gray, black
Jordisiteraremineral · Mohs 1-2black, brownish-black- No imageJørgenseniteraremineral · Mohs 3.5colorless, white, pale yellow
- No imageJörgkelleriteraremineral · Mohs 3-4colorless, white
Joséite-Araremineral · Mohs 1.5-2silver-white, lead-gray, steel-gray
Joséite-Braremineral · Mohs 1.5-2steel-gray, silver-white
Joteiteraremineral · Mohs 2yellow, brownish-yellow
Jouravskiteraremineral · Mohs 2-3yellow, yellowish-orange- No imageJuabiteraremineral · Mohs 2.5-3light green, pale blue-green
Juangodoyiteraremineral · Mohs 2.5colorless, white- No imageJuanitaiteraremineral · Mohs 2bright green, bluish green
- No imageJuaniteraremineral · Mohs 3.5white, pale yellow
Juansilvaiteraremineral · Mohs 2white, colorless
Julgoldite-(Fe2+)raremineral · Mohs 5.5black, brownish-black- No imageJulgoldite-(Fe3+)raremineral · Mohs 6black, brownish black
- No imageJulgoldite-(Mg)raremineral · Mohs 6black, brownish black
Julieniteraremineral · Mohs 2blue, blue-green
Jungiteraremineral · Mohs 3yellow, pale yellow
Junitoiteraremineral · Mohs 4colorless, white
Junoiteraremineral · Mohs 2.5lead-gray
Juonniiteraremineral · Mohs 3-4white, colorless
Jurbaniteraremineral · Mohs 2colorless, white- No imageJusiteraremineral · Mohs 3-4white, colorless
Kaatialaiteraremineral · Mohs 2white, gray, greenish-white- No imageKadyreliteraremineral · Mohs 2-3yellow, yellowish-green
Kahlenbergiteraremineral · Mohs 3white, colorless- No imageKahleriteraremineral · Mohs 2-2.5yellow, yellow-green
Kainosite-(Y)raremineral · Mohs 5-6yellow, yellowish-brown, brown- No imageKainotropiteraremineral · Mohs 4dark green, black, olive green
Kaitianiteraremineral · Mohs 6black, brown
Kalborsiteraremineral · Mohs 6white, colorless- No imageKalgoorlieiteraremineral · Mohs 2-3white, gray
Kaliboriteraremineral · Mohs 4.5white, colorless
Kaliciniteraremineral · Mohs 2.5white, colorless- No imageKalifersiteraremineral · Mohs 2white, colorless
- No imageKalininiteraremineral · Mohs 3.5-4dark gray, black
- No imageKaliochalciteraremineral · Mohs 3.5yellow, yellowish-green, emerald-green
Kaliophiliteraremineral · Mohs 6white, colorless, yellowish
Kalistrontiteraremineral · Mohs 3colorless, white- No imageKalithalliteraremineral · Mohs 2colorless, white
Kalsiliteraremineral · Mohs 6colorless, white, gray- No imageKalungaiteraremineral · Mohs 5-6white, gray
Kamaishiliteraremineral · Mohs 5-6white, colorless, pale yellow
Kamarizaiteraremineral · Mohs 2-3yellow, yellowish-green
Kambaldaiteraremineral · Mohs 3.5yellow, pale yellow- No imageKamchatkiteraremineral · Mohs 3yellow, yellowish-orange
- No imageKameneviteraremineral · Mohs 3-4colorless, white, yellowish
Kamiokiteraremineral · Mohs 5-6black, gray- No imageKamitugaiteraremineral · Mohs 2.5-3yellow, brownish-yellow
Kammereriteraremineral · Mohs 2-2.5violet, purple, magenta
Kamotoite-(Y)raremineral · Mohs 2-3yellow, bright yellow
Kampfiteraremineral · Mohs 3colorless, white, pale yellow
Kamphaugite-(Y)raremineral · Mohs 3white, colorless, pale yellow- No imageKanemiteraremineral · Mohs 2white, colorless
- No imageKangiteraremineral · Mohs not determinedwhite, colorless
Kaňkiteraremineral · Mohs 2yellow, yellowish-green
Kannaniteraremineral · Mohs 7-7.5blue, blue-green, green
Kanoiteraremineral · Mohs 5-6pink, pale brown, colorless
Kanonaiteraremineral · Mohs 6.5-7.5dark green, brownish green, black- No imageKanoneroviteraremineral · Mohs 4.5colorless, white, pale yellow
Kapellasiteraremineral · Mohs 3bright green, pale green- No imageKapitsaite-(Y)raremineral · Mohs 6yellowish-brown, brown
Kapundaiteraremineral · Mohs 3yellow, yellow-orange- No imageKapustiniteraremineral · Mohs 3.5yellow, yellowish-orange, brown
- No imageKarasugiteraremineral · Mohs 3-4colorless, white
- No imageKarchevskyiteraremineral · Mohs 2white, colorless, pale yellow
Karelianiteraremineral · Mohs 6black- No imageKarenwebberiteraremineral · Mohs 6.5-7yellow-brown, brown
Karibibiteraremineral · Mohs 1yellow, orange-yellow, brownish-yellow
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