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 121–240 of 4900 rare entries (page 2 of 41).
Amarantiteraremineral · Mohs 2.5orange, brownish-red
Amarilliteraremineral · Mohs 2yellow, pale yellow
Ambrinoiteraremineral · Mohs 5-6black, dark brown
Ameghiniteraremineral · Mohs 3.5colorless, white
Amesiteraremineral · Mohs 2.5-3white, green, pink
Amiciteraremineral · Mohs 4.5white, colorless, gray
Aminoffiteraremineral · Mohs 4colorless, white, gray
Ammineiteraremineral · Mohs 2blue, blue-green
Ammoliterarefossil · Mohs 3.5-4.5iridescent red, green, gold
Ammonioaluniteraremineral · Mohs 3.5-4white, colorless
Ammonioboriteraremineral · Mohs 2white, colorless- No imageAmmoniolasaliteraremineral · Mohs 1.5-2colorless, white, yellowish
- No imageAmmonioleuciteraremineral · Mohs 5.5colorless, white
- No imageAmmoniomagnesiovoltaiteraremineral · Mohs 2.5-3black, dark green, brown
- No imageAmmoniomathesiusiteraremineral · Mohs 2-3yellow
- No imageAmmoniovoltaiteraremineral · Mohs 3black, dark green, brown
Ammoniozippeiteraremineral · Mohs 2yellow, orange-yellow
Amstalliteraremineral · Mohs 4white, colorless- No imageAnanditeraremineral · Mohs 2.5-3black, brown
- No imageAncylite-(La)raremineral · Mohs 4-4.5yellow, brown, colorless
Andersoniteraremineral · Mohs 2.5bright yellow, yellow-green- No imageAndreadiniiteraremineral · Mohs 3black, lead-gray
Andrémeyeriteraremineral · Mohs 6colorless, white- No imageAndreyivanoviteraremineral · Mohs 5-6white, gray
Andrianoviteraremineral · Mohs 5-6yellow, brown
Anduoiteraremineral · Mohs 5-6white, gray
Andychristyiteraremineral · Mohs 2.5yellow, yellow-green- No imageAndymcdonalditeraremineral · Mohs 4-4.5yellow, brown
Andyrobertsiteraremineral · Mohs 3-4white, pale yellow- No imageAngarfiteraremineral · Mohs 3yellow, yellow-orange
Angastoniteraremineral · Mohs 2white, colorless- No imageÁngelaiteraremineral · Mohs 3black, lead-gray
- No imageAngelelliteraremineral · Mohs 3.5red, brownish-red
- No imageAnhydrokainiteraremineral · Mohs 3white, colorless, yellowish
Aniliteraremineral · Mohs 3.5gray, dark gray, black
Ankinovichiteraremineral · Mohs 2-3yellow, yellow-green- No imageAnorthominasragriteraremineral · Mohs 2pale blue
- No imageAnorthoroseliteraremineral · Mohs 3.5rose-red, pink, magenta
Ansermetiteraremineral · Mohs 2red, brownish-red- No imageAntarcticiteraremineral · Mohs 2colorless, white
Anthoiniteraremineral · Mohs 2-3white, yellowish-white
Anthonyiteraremineral · Mohs 2blue, blue-green- No imageAntimonseliteraremineral · Mohs 2gray, lead-gray
Antimonyraremineral · Mohs 3-3.5tin-white, silver-gray
Antipiniteraremineral · Mohs 3blue, greenish-blue
Antofagastaiteraremineral · Mohs 2white, colorless- No imageAnyuiiteraremineral · Mohs 3.5white, silver-white
- No imageAnzaite-(Ce)raremineral · Mohs 5-6black, brownish-black
Apachiteraremineral · Mohs 2blue, pale blue, white
Apexiteraremineral · Mohs 2colorless, white
Aplowiteraremineral · Mohs 2-3pink, pale pink, white
Apuaniteraremineral · Mohs 5-6black, brownish-black
Aqualiteraremineral · Mohs 6-7yellow, yellowish-brown- No imageAraditeraremineral · Mohs 6-7reddish-brown, brown, black
- No imageArakiiteraremineral · Mohs 4orange, brownish-orange
Aramayoiteraremineral · Mohs 2.5black, gray- No imageArangasiteraremineral · Mohs 3.5yellow, brown, white
- No imageArapoviteraremineral · Mohs 5-6colorless, white, pale yellow
- No imageAravaipaiteraremineral · Mohs 2yellow, pale yellow
- No imageAravaiteraremineral · Mohs 3.5colorless, white
Arcaniteraremineral · Mohs 3colorless, white, yellowish
Archeriteraremineral · Mohs 2colorless, white
Arctiteraremineral · Mohs 5colorless, white
Arcubisiteraremineral · Mohs 2.5lead-gray, silver-white
Ardaiteraremineral · Mohs 2.5gray, dark gray, black
Ardealiteraremineral · Mohs 2white, yellowish-white, pale yellow
Ardennite-(As)raremineral · Mohs 6-7yellow-brown, brown, red-brown
Ardennite-(V)raremineral · Mohs 6-7yellow, brown, reddish-brown- No imageArganditeraremineral · Mohs 7yellow, brownish-yellow, orange-yellow
Argentobaumhaueriteraremineral · Mohs 3lead-gray, black
Argentopentlanditeraremineral · Mohs 3.5bronze-yellow, yellowish-white
Argentopyriteraremineral · Mohs 3.5silver-white, grayish-black- No imageArgentotennantite-(Zn)raremineral · Mohs 3-4steel-gray, iron-black
Argentotetrahedrite-(Fe)raremineral · Mohs 3-4steel-gray, iron-black- No imageArgesiteraremineral · Mohs 2.5white, colorless
Argutiteraremineral · Mohs 6-7black, dark brown
Argyroditeraremineral · Mohs 2.5black, iron-black, steel-gray
Arhbariteraremineral · Mohs 3-4bright green, emerald green
Arisite-(Ce)raremineral · Mohs 4yellow, brown- No imageArisite-(La)raremineral · Mohs 3-4yellow, pale yellow
Aristarainiteraremineral · Mohs 3.5white, colorless
Armalcoliteraremineral · Mohs 6gray, brownish-gray, black
Armangiteraremineral · Mohs 3.5-4black, brownish-black- No imageArmbrusteriteraremineral · Mohs 3-4yellow, brown, greenish-brown
- No imageArmellinoite-(Ce)raremineral · Mohs 3-4yellow, pale yellow
Armeniteraremineral · Mohs 6.5colorless, white, light green
Armstrongiteraremineral · Mohs 3.5colorless, white, pale pink
Arrojadite-(BaNa)raremineral · Mohs 4-5dark green, brownish-green, olive-green
Arrojadite-(KFe)raremineral · Mohs 4-5dark green, brownish green, olive green- No imageArrojadite-(KNa)raremineral · Mohs 4-5green, brown, yellowish-green
- No imageArrojadite-(PbFe)raremineral · Mohs 4-5green, brown, yellow-brown
- No imageArrojadite-(SrFe)raremineral · Mohs 4-5dark green, brownish green, brown
- No imageArsenbrackebuschiteraremineral · Mohs 4.5yellow, brownish-yellow, brown
Arsendescloiziteraremineral · Mohs 4.5yellow, greenish yellow, brownish yellow
Arseniopleiteraremineral · Mohs 3.5dark brown, reddish-brown, black- No imageArsenoclasiteraremineral · Mohs 5-6dark red, brownish red
Arsenocrandalliteraremineral · Mohs 5white, colorless, pale yellow
Arsenoflorencite-(Ce)raremineral · Mohs 5-6yellow, brown, colorless
Arsenoflorencite-(La)raremineral · Mohs 5-6white, yellowish, brownish
Arsenogorceixiteraremineral · Mohs 5white, colorless, yellowish-white
Arsenogoyaziteraremineral · Mohs 4-5white, colorless, pale yellow
Arsenohauchecorniteraremineral · Mohs 4brass-yellow, bronze- No imageArsenohopeiteraremineral · Mohs 3.5colorless, white
Arsenolampriteraremineral · Mohs 2white, gray, black
Arsenopalladiniteraremineral · Mohs 3.5white, light yellow, gray- No imageArsenovanmeersscheiteraremineral · Mohs 2-3yellow, bright yellow, orange-yellow
- No imageArsenowagneriteraremineral · Mohs 5-5.5yellowish-brown, brown
- No imageArsenquatrandoriteraremineral · Mohs 3.5lead-gray, steel-gray
Arsentsumebiteraremineral · Mohs 3.5green, yellow-green, emerald-green
Arsenudinaiteraremineral · Mohs 3.5-4silver-white, pale gray
Arsenuranospathiteraremineral · Mohs 2.5yellow, greenish-yellow
Arsenuranyliteraremineral · Mohs 2-3yellow, orange-yellow
Arsiccioiteraremineral · Mohs 3.5-4black- No imageArsmiranditeraremineral · Mohs 2-3yellow, yellowish-orange
Arthuriteraremineral · Mohs 3-4apple-green, yellow-green, emerald-green
Artroeiteraremineral · Mohs 2.5colorless, white- No imageArtsmithiteraremineral · Mohs 2-3white, colorless, pale yellow
Arupiteraremineral · Mohs 1.5-2green, yellowish-green- No imageArzruniteraremineral · Mohs 2.5green, blue-green
Asbecasiteraremineral · Mohs 6yellow, yellow-brown, brown
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