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 961–1080 of 4900 rare entries (page 9 of 41).
Cumengeiteraremineral · Mohs 2.5indigo blue, dark blue- No imageCupaliteraremineral · Mohs 3-3.5copper-red, reddish-brown
- No imageCuproaurideraremineral · Mohs 2.5-3yellow, gold-yellow
Cuprobismutiteraremineral · Mohs 3.5dark gray, black
Cuprocopiapiteraremineral · Mohs 2.5-3yellow, greenish-yellow
Cuproiridsiteraremineral · Mohs 5.5-6gray, white- No imageCuprokalininiteraremineral · Mohs 5-6black
- No imageCupromakopavoniteraremineral · Mohs 3-4lead-gray, steel-gray
- No imageCupromakovickyiteraremineral · Mohs 3-3.5lead-gray, steel-gray
- No imageCupromolybditeraremineral · Mohs 3-3.5green, yellow-green
- No imageCuproneyiteraremineral · Mohs 3-4dark blue, black
- No imageCupropavoniteraremineral · Mohs 3.5steel-gray, lead-gray
- No imageCupropearceiteraremineral · Mohs 3black, iron-black
Cupropolybasiteraremineral · Mohs 2.5-3black, iron-black
Cuprorhodsiteraremineral · Mohs 5-6gray, white
Cuprorivaiteraremineral · Mohs 5blue, deep blue
Cuprosklodowskiteraremineral · Mohs 3-4grass-green, emerald-green, yellow-green- No imageCuprospinelraremineral · Mohs 5-6black, brownish-black
Cuprostibiteraremineral · Mohs 3.5dark gray, bronze-like, light red
Cuprotungstiteraremineral · Mohs 4.5green, yellow-green, pistachio-green
Curetoniteraremineral · Mohs 4colorless, white, light green
Curieniteraremineral · Mohs 2yellow, orange-yellow
Curiteraremineral · Mohs 4-5orange, orange-red, reddish-orange- No imageCurtisiteraremineral · Mohs 1-2yellow, yellowish-green, brownish-yellow
Cuspidineraremineral · Mohs 5-6red, yellow, brown
Cuzticiteraremineral · Mohs 2.5yellow, brownish-yellow
Cyanochroiteraremineral · Mohs 2.5blue, bluish-green, colorless
Cylindriteraremineral · Mohs 2-2.5dark lead-gray, blackish-gray
Cymriteraremineral · Mohs 2.5white, colorless, pale yellow
Cyprineraremineral · Mohs 6.5blue, blue-green, sky-blue
Cyriloviteraremineral · Mohs 3.5-4yellow, golden-yellow, orange-yellow- No imageCzochralskiiteraremineral · Mohs 3.5colorless, white
- No imageD'Ansiteraremineral · Mohs 3.5colorless, white, yellowish
- No imageD'Ansite-(Fe)raremineral · Mohs 3.5yellow, yellowish-orange
- No imageD'Ansite-(Mn)raremineral · Mohs 3.5colorless, white
- No imageDachiardite-Cararemineral · Mohs 4-4.5white, colorless, yellowish
Dachiardite-Kraremineral · Mohs 4-5white, colorless, yellowish- No imageDachiardite-Nararemineral · Mohs 4-4.5white, colorless, pink
Dadsoniteraremineral · Mohs 2.5-3lead-gray, grayish-black- No imageDagenaisiteraremineral · Mohs 4.5white, colorless
Daliraniteraremineral · Mohs 2red
Dalnegorskiteraremineral · Mohs 4.5-5white, colorless, gray
Dalnegroiteraremineral · Mohs 3-3.5lead-gray, dark gray
Dalyiteraremineral · Mohs 7-7.5colorless, white, pale yellow
Damaraiteraremineral · Mohs 2.5colorless, white- No imageDamiaoiteraremineral · Mohs 3.5white, silver-white
Danaliteraremineral · Mohs 5.5-6red, reddish-brown, yellow
Danbaiteraremineral · Mohs 3.5silver-white, light yellow
Danielsiteraremineral · Mohs 1.5-2yellow, brownish-yellow- No imageDantopaiteraremineral · Mohs 3-3.5dark gray, black
- No imageDaomaniteraremineral · Mohs 3.5-4brass-yellow, pale gold
Daqingshanite-(Ce)raremineral · Mohs 3.5-4white, colorless, pale yellow
Darapiositeraremineral · Mohs 6colorless, white, pinkish
Darapskiteraremineral · Mohs 2.5colorless, white, yellowish- No imageDargaiteraremineral · Mohs 3.5yellow, yellowish-brown, colorless
Darrellhenryiteraremineral · Mohs 7pink, pale pink- No imageDashkovaiteraremineral · Mohs 2colorless, white
Daubréeiteraremineral · Mohs 2.5white, gray, yellowish-white
Daubréeliteraremineral · Mohs 3.5-4black, dark brownish-black
Davaniteraremineral · Mohs 3-4colorless, white- No imageDavidbrownite-(NH4)raremineral · Mohs 2colorless, white
Davidite-(Ce)raremineral · Mohs 6black, dark brown
Davidite-(La)raremineral · Mohs 6black, dark brown- No imageDavidlloyditeraremineral · Mohs 3white, colorless
- No imageDavinciiteraremineral · Mohs 5yellow, brownish-yellow
- No imageDavisiteraremineral · Mohs 6purple, violet, black
Davreuxiteraremineral · Mohs 6-7yellow, brown, pink
Davyneraremineral · Mohs 5.5-6white, colorless, yellow- No imageDeanesmithiteraremineral · Mohs 2.5bright red, orange-red
- No imageDebattistiiteraremineral · Mohs 2.5lead-gray, silver-white
- No imageDecagoniteraremineral · Mohs 6silver, metallic gray
Decrespignyite-(Y)raremineral · Mohs 3blue, greenish-blue, emerald-green
Deeriteraremineral · Mohs 6black, brownish black
Deferniteraremineral · Mohs 3-4colorless, white, pale gray
Dekatriasartoriteraremineral · Mohs 3lead-gray, black
Delafossiteraremineral · Mohs 5.5black, dark brown
Delhayeliteraremineral · Mohs 3-4colorless, white, pale yellow- No imageDeliensiteraremineral · Mohs 2.5yellow, yellowish-green
Delindeiteraremineral · Mohs 3-4yellow, brown
Dellagiustaiteraremineral · Mohs 5.5-6black
Dellaiteraremineral · Mohs 3.5colorless, white, grayish
Deloneiteraremineral · Mohs 5white, colorless, yellowish- No imageDeloryiteraremineral · Mohs 3-4green, brownish-green
- No imageDelrioiteraremineral · Mohs 2yellow, yellowish-green
Delvauxiteraremineral · Mohs 2.5-3yellow, brown, reddish-brown- No imageDemagistrisiteraremineral · Mohs 6.5-7dark brown, black
- No imageDemartiniteraremineral · Mohs 2yellow, yellowish-green
Demesmaekeriteraremineral · Mohs 3honey-yellow, brownish-yellow, greenish-yellow
Demicheleite-(Br)raremineral · Mohs 1.5-2orange, red-orange
Demicheleite-(Cl)raremineral · Mohs 1.5-2yellow, orange-yellow- No imageDemicheleite-(I)raremineral · Mohs 1.5-2yellow, orange
Denisoviteraremineral · Mohs 3-4white, colorless, yellowish
Denningiteraremineral · Mohs 3colorless, pale green- No imageDepmeieriteraremineral · Mohs 5-6colorless, white
Derbyliteraremineral · Mohs 5black, brownish-black
Derriksiteraremineral · Mohs 2-3emerald-green, grass-green- No imageDervilliteraremineral · Mohs 3.5-4dark gray, black
Desautelsiteraremineral · Mohs 2orange, yellow-orange
Despujolsiteraremineral · Mohs 2.5colorless, white, yellow- No imageDessauite-(Y)raremineral · Mohs 6-7black, brownish-black
Destineziteraremineral · Mohs 3-4yellow, brown, white
Deveroite-(Ce)raremineral · Mohs 3pale yellow, white, colorless- No imageDevitoiteraremineral · Mohs 2yellow, brown
Dewindtiteraremineral · Mohs 3canary yellow, lemon yellow, golden yellow
Diaboleiteraremineral · Mohs 2.5deep blue, bright blue
Diaoyudaoiteraremineral · Mohs 3.5colorless, white
Diaphoriteraremineral · Mohs 2.5-3lead-gray, iron-black- No imageDickinsonite-(KMnNa)raremineral · Mohs 3.5-4olive-green, yellow-green, brownish-green
Dickthomsseniteraremineral · Mohs 2yellow, yellow-orange- No imageDiegogattaiteraremineral · Mohs 3yellow, greenish-yellow
Dieneriteraremineral · Mohs 3.5silver-white, gray
Dietrichiteraremineral · Mohs 2white, colorless, yellowish
Dietzeiteraremineral · Mohs 3-3.5yellow, orange-yellow, reddish-orange
Dimorphiteraremineral · Mohs 1.5orange, yellow
Dingdaohengite-(Ce)raremineral · Mohs 5-6black, brown- No imageDiniteraremineral · Mohs 6.5-7yellow, brown, greenish-yellow
Dioskouriiteraremineral · Mohs 2colorless, white- No imageDirenzoiteraremineral · Mohs 3.5colorless, white
Dissakisite-(Ce)raremineral · Mohs 6-7brown, dark brown, black- No imageDissakisite-(La)raremineral · Mohs 6-7black, brown, dark brown
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