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 3721–3840 of 4900 rare entries (page 32 of 41).
Reevesiteraremineral · Mohs 2yellow, yellow-green- No imageRefikiteraremineral · Mohs 1-2yellow, white, colorless
Reichenbachiteraremineral · Mohs 4dark green, blackish green- No imageReiditeraremineral · Mohs 7.5colorless, white
Reineriteraremineral · Mohs 4.5green, yellow-green
Reinhardbraunsiteraremineral · Mohs 6colorless, white, pale yellow
Rémondite-(Ce)raremineral · Mohs 4yellow, brown, colorless
Rémondite-(La)raremineral · Mohs 3.5-4yellow, brown, colorless- No imageRenarditeraremineral · Mohs 2-3yellow, lemon-yellow
- No imageRengeiteraremineral · Mohs 5-6dark brown, black
Renieriteraremineral · Mohs 4.5bronze, reddish-brown
Reppiaiteraremineral · Mohs 3dark red, brownish-red
Retgersiteraremineral · Mohs 2green, yellowish-green
Retzian-(Ce)raremineral · Mohs 4reddish brown, brown- No imageRetzian-(La)raremineral · Mohs 4brown, reddish-brown
- No imageRetzian-(Nd)raremineral · Mohs 4brown, reddish-brown
Revditeraremineral · Mohs 2colorless, white
Reyeriteraremineral · Mohs 3-4white, colorless, pale yellow
Reynoldsiteraremineral · Mohs 3yellow, yellow-orange, brown
Rhabdoborite-(V)raremineral · Mohs 5colorless, white- No imageRhabdoborite-(W)raremineral · Mohs 5-6colorless, white, yellow
Rhabdophane-(La)raremineral · Mohs 3.5white, gray, yellowish- No imageRhabdophane-(Nd)raremineral · Mohs 3.5pink, white, yellow
Rhabdophane-(Y)raremineral · Mohs 3.5white, gray, yellow
Rheniiteraremineral · Mohs 1.5-2black, gray- No imageRhodarsenideraremineral · Mohs 3white, silver-white
Rhodesiteraremineral · Mohs 3-4white, colorless
Rhodiziteraremineral · Mohs 8white, colorless, yellow
Rhodostanniteraremineral · Mohs 4black, gray
Rhodplumsiteraremineral · Mohs 3-3.5red, pink, brownish-red
Rhöniteraremineral · Mohs 5.5-6black, brown, dark brown
Ribbeiteraremineral · Mohs 6reddish-brown, orange-pink, yellow-brown- No imageRichelliteraremineral · Mohs 3.5yellow, brownish-yellow, yellow-brown
Richelsdorfiteraremineral · Mohs 2blue, green- No imageRichetiteraremineral · Mohs 3black, brownish-black
Rickarditeraremineral · Mohs 2purple, reddish-purple- No imageRickturneriteraremineral · Mohs 2colorless, white
Rilanditeraremineral · Mohs 3-4dark red, reddish-brown
Rimkorolgiteraremineral · Mohs 3-4colorless, white, pale pink
Ringwooditeraremineral · Mohs 6.5-7blue, purple, colorless
Rinkite-(Ce)raremineral · Mohs 5yellow, brown, yellow-brown
Rinkite-(Y)raremineral · Mohs 5yellow, brown, yellow-brown
Rinmaniteraremineral · Mohs 6yellow, brown- No imageRinneiteraremineral · Mohs 3colorless, white, pale pink
- No imageRiomarinaiteraremineral · Mohs 2white, colorless
- No imageRíosecoiteraremineral · Mohs 2white, colorless
Riotintoiteraremineral · Mohs 2white, colorless
Rittmanniteraremineral · Mohs 4.5yellow, brown, reddish-brown
Rivadaviteraremineral · Mohs 3.5yellow, white, colorless
Riversideiteraremineral · Mohs 3white, colorless- No imageRoalditeraremineral · Mohs 5.5white, gray
Robertsiteraremineral · Mohs 3.5pink, pale pink, white- No imageRobinsoniteraremineral · Mohs 2.5lead-gray
Rodalquilariteraremineral · Mohs 4emerald green, yellow-green
Rodolicoiteraremineral · Mohs 5white, colorless- No imageRoeblingiteraremineral · Mohs 3white, colorless, pale pink
Roedderiteraremineral · Mohs 5colorless, white- No imageRogermitchelliteraremineral · Mohs 3.5colorless, white, pale yellow
Roggianiteraremineral · Mohs 5white, colorless, yellowish-white- No imageRohaiteraremineral · Mohs 3-4white, gray
Rokühniteraremineral · Mohs 2yellow, pale green- No imageRollanditeraremineral · Mohs 2pink, violet
- No imageRomanorloviteraremineral · Mohs 1.5-2yellow, yellowish-orange
- No imageRomarchiteraremineral · Mohs 2black, dark brown, reddish-brown
- No imageRondorfiteraremineral · Mohs 6colorless, white
Rongibbsiteraremineral · Mohs 3.5yellow, yellow-orange
Ronneburgiteraremineral · Mohs 3yellow, yellowish-orange
Röntgenite-(Ce)raremineral · Mohs 4.5yellow, brown, colorless
Rooseveltiteraremineral · Mohs 3.5white, colorless, pale yellow- No imageRoquesiteraremineral · Mohs 3.5-4grayish-black, dark gray
- No imageRorisiteraremineral · Mohs 3white, colorless
Roscheriteraremineral · Mohs 4.5green, brown, yellow
Roseliteraremineral · Mohs 3.5rose-red, pink, magenta
Rosemaryiteraremineral · Mohs 4brown, yellow-brown, red-brown
Rosenbergiteraremineral · Mohs 3white, colorless
Rosenbuschiteraremineral · Mohs 5-6orange, yellow, brownish-yellow
Rosenhahniteraremineral · Mohs 5colorless, white, pale pink
Roshchiniteraremineral · Mohs 2.5black, dark gray
Rosiaiteraremineral · Mohs 3-4yellow, yellow-brown
Rosickýiteraremineral · Mohs 1.5-2colorless, pale yellow
Rosièresiteraremineral · Mohs 2-3yellow, yellowish-brown, white- No imageRossiantoniteraremineral · Mohs 2white, pale yellow
Rossiteraremineral · Mohs 2-3yellow, orange-yellow
Rössleriteraremineral · Mohs 2-3white, colorless, pale yellow
Rossmaniteraremineral · Mohs 7-7.5pink, colorless, pale red- No imageRossovskyiteraremineral · Mohs 6-6.5black, brownish black
Rostiteraremineral · Mohs 2white, colorless, yellow
Rouaiteraremineral · Mohs 3blue, greenish-blue
Roubaultiteraremineral · Mohs 2orange, red-orange- No imageRoumaiteraremineral · Mohs 5-6black, brown
- No imageRouseiteraremineral · Mohs 2yellow, pale yellow
Routhieriteraremineral · Mohs 3deep red, black
Rouvilleiteraremineral · Mohs 3-3.5colorless, white, pale yellow
Rouxeliteraremineral · Mohs 2red, brownish-red- No imageRoweiteraremineral · Mohs 5colorless, white, brownish
- No imageRowlandite-(Y)raremineral · Mohs 5green, brown, yellow
Roxbyiteraremineral · Mohs 2.5-3dark gray, black- No imageRoymilleriteraremineral · Mohs 3-4pink, violet-pink
Rruffiteraremineral · Mohs 3.5pink, rose red- No imageRuarsiteraremineral · Mohs 5-6silver-white, gray
Rubiclineraremineral · Mohs 6red, pink
Rubyraregemstone · Mohs 9red
Rucklidgeiteraremineral · Mohs 2.5lead-gray, white- No imageRudashevskyiteraremineral · Mohs 3.5-4gray
- No imageRudenkoiteraremineral · Mohs 3-3.5colorless, white, pale yellow
- No imageRüdlingeriteraremineral · Mohs 3-4orange, yellowish-orange
Ruifrancoiteraremineral · Mohs 4yellow, yellow-brown- No imageRuitenbergiteraremineral · Mohs 3colorless, white
Ruiziteraremineral · Mohs 5orange, red-orange, brownish-orange- No imageRumoiiteraremineral · Mohs 3.5white, gray
- No imageRumseyiteraremineral · Mohs 2colorless, white
Rusakoviteraremineral · Mohs 2yellow, yellow-orange
Rusinoviteraremineral · Mohs 5yellow, brown, colorless
Russelliteraremineral · Mohs 3.5yellow, yellowish-white, pale yellow- No imageRussoiteraremineral · Mohs 1.5-2yellow, yellowish-orange
- No imageRustenburgiteraremineral · Mohs 3.5-4white, cream white
Rustumiteraremineral · Mohs 4-5colorless, white, pale yellow- No imageRuthenarseniteraremineral · Mohs 5-6white, silver-white
Rutheniridosmineraremineral · Mohs 6-7silver-white, light steel-gray
Rutherfordineraremineral · Mohs 2.5yellow, yellowish-orange
Hunt the unusual
Open RockHoundR to find mapped spots and log finds wherever they show up.
