Mineral rocks & minerals
Minerals are naturally occurring inorganic solids with a defined chemical composition and crystalline structure. They are the building blocks of every rock you pick up in the field.
Showing 2761–2880 of 5834 minerals (page 24 of 49).
Kolovratiteraremineral · Mohs 2-3yellow, yellowish-green- No imageKolskyiteraremineral · Mohs 3-4brown, yellowish-brown
Kolweziteraremineral · Mohs 3.5-4green, brownish-green, pinkish
Kolymiteraremineral · Mohs 3.5silvery white, gray
Komaroviteraremineral · Mohs 4-5yellow, brown, white
Kombatiteraremineral · Mohs 2yellow, yellowish-orange
Komkoviteraremineral · Mohs 4-5colorless, yellow, brownish-yellow- No imageKonderiteraremineral · Mohs 4.5-5white, gray
Koninckiteraremineral · Mohs 3.5yellow, yellowish-white, colorless- No imageKononoviteraremineral · Mohs 3.5yellow, brownish-yellow
Konyaiteraremineral · Mohs 2white, colorless- No imageKoragoiteraremineral · Mohs 4-5yellow, brownish-yellow
Koritnigiteraremineral · Mohs 2-3pink, pale red, colorless- No imageKorneliteraremineral · Mohs 2.5violet, lavender, pinkish-white
Kornerupineraremineral · Mohs 6.5-7green, yellowish-green, brown
Korobitsyniteraremineral · Mohs 5yellow, brownish-yellow, pale yellow
Korshunovskiteraremineral · Mohs 2white, colorless- No imageKoryakiteraremineral · Mohs 3-4white, colorless
Korzhinskiteraremineral · Mohs 3.5white, colorless
Kosmochlorraremineral · Mohs 6-6.5emerald-green, dark green
Kosnariteraremineral · Mohs 3.5colorless, white, yellow
Kostoviteraremineral · Mohs 2white, silver-white, pale brass-yellow
Kostyleviteraremineral · Mohs 5colorless, white
Kotoiteraremineral · Mohs 6.5white, gray, yellow
Kottenheimiteraremineral · Mohs 2white, colorless
Köttigiteraremineral · Mohs 1.5-2pink, reddish-pink, violet
Kotulskiteraremineral · Mohs 2.5white, gray, pinkish-white
Koutekiteraremineral · Mohs 3.5white, silver-white, pinkish-white
Kovdorskiteraremineral · Mohs 3.5pale blue, colorless, white- No imageKozoite-(La)raremineral · Mohs 4-4.5white, colorless, pale pink
- No imageKozoite-(Nd)raremineral · Mohs 4-4.5white, colorless, pale pink
- No imageKozyrevskiteraremineral · Mohs 2yellow, greenish-yellow
Kraissliteraremineral · Mohs 3-4yellow, brown, orange-brown- No imageKrasheninnikoviteraremineral · Mohs 2.5colorless, white
Krásnoiteraremineral · Mohs 4white, colorless
Krasnoshteiniteraremineral · Mohs 2white, colorless
Krasnoviteraremineral · Mohs 3-4white, colorless- No imageKratochvíliteraremineral · Mohs 1yellow, colorless, white
- No imageKrausiteraremineral · Mohs 2.5yellow, brownish-yellow
- No imageKrauskopfiteraremineral · Mohs 3.5colorless, white
Krautiteraremineral · Mohs 2pink, colorless, white
Kremersiteraremineral · Mohs 2red, reddish-orange
Krenneriteraremineral · Mohs 2.5silver-white, pale brass-yellow- No imageKrettnichiteraremineral · Mohs 3.5yellow, brownish-yellow
Kribergiteraremineral · Mohs 3.5white, colorless
Krieseliteraremineral · Mohs 3.5yellow, yellowish-white
Krinoviteraremineral · Mohs 6-7dark green, emerald green
Kristianseniteraremineral · Mohs 3.5colorless, white- No imageKrivovicheviteraremineral · Mohs 2colorless, white, pale yellow
Kröhnkiteuncommonmineral · Mohs 2.5-3blue, blue-green- No imageKrotiteraremineral · Mohs 3.5colorless
- No imageKroupaiteraremineral · Mohs 3yellow, orange-yellow
Kruijeniteraremineral · Mohs 2colorless, white
Krupkaiteraremineral · Mohs 3.5lead-gray, steel-gray
Kruťaiteraremineral · Mohs 3.5gray, silver-white
Krutoviteraremineral · Mohs 5.5white, pale gray
Kryzhanovskiteraremineral · Mohs 3.5brownish-red, orange-brown, reddish-brown
Ktenasiteraremineral · Mohs 2bright blue, blue-green- No imageKuannersuite-(Ce)raremineral · Mohs 3.5-4yellow, brown, red-brown
Kudriaviteraremineral · Mohs 2yellow, pale yellow- No imageKudryavtsevaiteraremineral · Mohs 3.5yellow, brownish-yellow
Kukharenkoite-(Ce)raremineral · Mohs 4.5yellow, yellowish-brown, brown- No imageKukharenkoite-(La)raremineral · Mohs 4.5yellowish-brown, brown, yellow
Kukisvumiteraremineral · Mohs 3-4white, colorless, pale yellow
Kuksiteraremineral · Mohs 3-4yellow, yellowish-green, colorless
Kulaniteraremineral · Mohs 4blue, blue-green, colorless- No imageKuliginiteraremineral · Mohs 3.5yellow, brownish-yellow
Kuliokite-(Y)raremineral · Mohs 5yellow, brown, colorless
Kulkeiteraremineral · Mohs 2white, colorless, pale green- No imageKulleruditeraremineral · Mohs 5-6silver-white, tinfoil-white
Kumdykoliteraremineral · Mohs 6white, colorless
Kumtyubeiteraremineral · Mohs 3.5white, colorless- No imageKunatiteraremineral · Mohs 4yellow, brownish-yellow
- No imageKupčíkiteraremineral · Mohs 3-3.5black
Kupletskiteraremineral · Mohs 3-4dark brown, reddish-brown, black
Kupletskite-(Cs)raremineral · Mohs 3dark brown, reddish-brown, bronze- No imageKuramiteraremineral · Mohs 3.5-4gray, blackish-gray
Kuranakhiteraremineral · Mohs 3.5black, brownish-black- No imageKuratiteraremineral · Mohs 6-7black, dark brown
Kurchatoviteraremineral · Mohs 4.5white, colorless, gray- No imageKurgantaiteraremineral · Mohs 3.5white, colorless, gray
- No imageKuriliteraremineral · Mohs 2.5-3silver-white, pale brass-yellow
Kurnakoviteraremineral · Mohs 3white, colorless
Kurumsakiteraremineral · Mohs 2yellow, greenish-yellow
Kusachiiteraremineral · Mohs 3-4black, dark brown- No imageKushiroiteraremineral · Mohs 6-7green, dark green, black
Kutinaiteraremineral · Mohs 3.5silver-white, pale brass-yellow
Kutnohoriteuncommonmineral · Mohs 3.5-4white, pink, brown
Kuzeliteraremineral · Mohs 2white, colorless, pale yellow
Kuzmenkoite-Mnraremineral · Mohs 5yellow, brown, orange- No imageKuzmenkoite-Znraremineral · Mohs 5yellow, brown, orange
- No imageKuzminiteraremineral · Mohs 2.5white, gray
Kuznetsoviteraremineral · Mohs 3.5dark red, red-brown, orange-red
Kvanefjelditeraremineral · Mohs 3-4pink, brown, white
Kyanitecommonmineral · Mohs 4.5-7blue, colorless, white- No imageKyanite Bladescommonmineral · Mohs 4.5-7blue, white, gray
- No imageKyanoxaliteraremineral · Mohs 5-6white, colorless
Kyawthuiteraremineral · Mohs 5.5orange, reddish-orange- No imageKyrgyzstaniteraremineral · Mohs 2yellow, pale yellow
- No imageKyzylkumiteraremineral · Mohs 5-6dark brown, black
- No imageLaachitecommonmineral · Mohs 7colorless, white, milky
Labradoritecommonmineral · Mohs 6-6.5gray, gray-green, blue
Labuntsovite-Feraremineral · Mohs 5-6orange, brown, yellow
Labuntsovite-Mgraremineral · Mohs 5yellow, brown, orange
Labuntsovite-Mnraremineral · Mohs 5red, brown, orange- No imageLabyrinthiteraremineral · Mohs 5-6pink, reddish-brown
Lacroixiteraremineral · Mohs 4.5-5yellow, yellow-green, colorless
Laffittiteraremineral · Mohs 3dark red, brownish-red- No imageLaflammeiteraremineral · Mohs 1.5-2white, gray
- No imageLaforêtiteraremineral · Mohs 3.5gray, white
Lafossaiteraremineral · Mohs 2.5white, colorless, yellow
Laguna Agateuncommonmineral · Mohs 6.5-7red, orange, yellow- No imageLahnsteiniteraremineral · Mohs 2white, colorless
Laihuniteraremineral · Mohs 5-6reddish-brown, brown, black
Laitakariteraremineral · Mohs 2lead-gray, tin-white
Lakargiiteraremineral · Mohs 5-6yellow, brown, colorless- No imageLake County Diamondcommonmineral · Mohs 7colorless
Lake Superior Agatecommonmineral · Mohs 6.5-7red, orange, yellow- No imageLakebogaiteraremineral · Mohs 3-4yellow, yellow-orange, brown
- No imageLalondeiteraremineral · Mohs 5white, colorless
