# Mineral Hardness Color Transparency Crystal System Probability See More
1Kaolinite2.0 - 2.5White to cream and pale-yellow, also often stained various hues, tans and browns being common.Translucent, OpaqueTriclinic0.087
2Diamond10.0Colourless, yellowish to yellow, brown, black, blue, green or red, pink, champagne-tan, cognac-brown, lilac (very rare)Transparent, Translucent, OpaqueIsometric0.058
3Hauerite4.0Reddish-brown/blackOpaqueIsometric0.051
4Sepiolite2.0White, light gray or light yellow.Translucent, OpaqueOrthorhombic0.038
5Sanidine6.0Colourless, white, grey, yellowish white, or reddish whiteTransparent, TranslucentMonoclinic0.029
6Sassolite1.0White to grey, occasionally colourless, yellow or brown.TransparentTriclinic0.024
7Humboldtine1.5 - 2.0Yellow to amber-yellowTransparent, TranslucentMonoclinic0.018
8Narsarsukite7.0Yellow, yellowish-white, grayish-white, honey-yellow, tan, greenish-yellowTransparent, TranslucentTetragonal0.016
9Petalite6.5Colourless, white, grey, pinkTransparent, TranslucentMonoclinic0.016
10Carnotite2.0Bright yellow, yellow, greenish yellowTranslucentMonoclinic0.015
11Tilasite5.0Light gray, violet-gray, pinkish red (Långban), olive-green, apple-green (India), colourless or pale green in transmitted light.TranslucentMonoclinic0.015
12Howlite3.5 - 6.5White, colorless, brownTransparentMonoclinic0.014
13Thorite4.5Yellow, yellow-brown, red-brown, green, orange to blackOpaqueTetragonal0.013
14Alunite3.5 - 4.0white, pale shades of gray, yellow, red, to reddish brownTransparent, TranslucentTrigonal0.013
15Leucite5.5 - 6.0White, greyTransparent, TranslucentTetragonal0.012
16Thorianite6.5 - 7.0Dark grey, brown-blackIsometric0.011
17Gearksutite2.0white, colourless (including in transmitted light)Triclinic0.01
18Glauberite2.5 - 3.0Grey, yellowish, colourless, colourless in transmitted lightTransparent, TranslucentMonoclinic0.009
19Microcline6.0 - 6.5White, grey, greyish yellow, yellowish, tan, salmon-pink, bluish green, green.Transparent, TranslucentTriclinic0.009
20Tremolite5.0 - 6.0White, brown, colourless, grey, light green, green, light yellow, pink-violetTransparent, TranslucentMonoclinic0.009
21Whewellite2.5 - 3.0White, yellow, brown, colourless, colourless in transmitted light.Transparent, TranslucentMonoclinic0.009
22Ulexite2.5Colourless, white, grey with included clays.TransparentTriclinic0.009
23Beaverite-(Cu)3.5 - 4.5YellowTrigonal0.009
24Wollastonite4.5 - 5.0White, gray-white, light green, pinkish, brown, red, yellowTransparent, TranslucentTriclinic0.008
25Spodumene6.5 - 7.0Colourless, yellow, light green, emerald-green, pink to violet, purple, white, grayTransparent, TranslucentMonoclinic0.008
26Talc1.0Colorless, white, pale green, bright emerald-green to dark green, brown, grayTransparent, TranslucentTriclinic0.008
27Fluoborite3.5Colourless, violet or white, colourless in transmitted lightTransparent, TranslucentHexagonal0.008
28Sillimanite6.5 - 7.5Colorless, white, yellow, brown, green, gray.Transparent, TranslucentOrthorhombic0.008
29Turquoise5.0 - 6.0bright blue, sky-blue, pale green, blue-green, turquoise-blue, apple-green, green-grayTransparent, Translucent, OpaqueTriclinic0.007
30Anorthite6.0 - 6.5Colourless, reddish grey, whiteTransparent, TranslucentTriclinic0.007
31Pentlandite3.5 - 4.0Pale bronze-yellow, bronze, brown, reddish brown when argentianOpaqueIsometric0.006
32Thortveitite6.0 - 7.0Greyish-green, black, grey, blue, yellow, brownTranslucent, OpaqueMonoclinic0.006
33Hydrocerussite3.5White or grey, colourless in transmitted lightTransparent, TranslucentTrigonal0.006
34Corundum9.0Colourless, blue, red, pink, yellow, grey, golden-brownTransparent, Translucent, OpaqueTrigonal0.006
35Berthierite2.0 - 3.0Dark steel-grey, often with iridescent tarnish.OpaqueOrthorhombic0.006
36Henmilite1.5 - 2.0Triclinic0.005
37Bikitaite6.0Colorless, WhiteTransparent, TranslucentTriclinic0.005
38Chromite5.5BlackTranslucent, OpaqueIsometric0.005
39Pyroaurite2.5Yellow to brownish-white, white, gray, silver-white, greenish or colourlessTransparentTrigonal0.004
40Montebrasite5.5 - 6.0White, colorless, gray white, very pale brown, pale pink, pale yellowTransparent, TranslucentTriclinic0.004
41Beryl7.5 - 8.0Colorless, green, blue, yellow, white, pink, etc.Hexagonal0.004
42Famatinite3.0 - 4.0Deep pinkish brownOpaqueTetragonal0.004
43Tacharanite5.0WhiteTranslucentMonoclinic0.004
44Franklinite5.5 - 6.0BlackOpaqueIsometric0.004
45Probertite3.5Colourless, colourless in transmitted lightTransparentMonoclinic0.004
46Orthoclase6.0Colorless to white, Greenish white, Grayish yellow, Pale pinkTransparent, TranslucentMonoclinic0.004
47Gold2.5 - 3.0Rich yellow, paling to whitish-yellow with increasing silver, blue & green in transmitted light (only thinnest folia [gold leaf])OpaqueIsometric0.004
48Marialite5.5 - 6.0Bluish, Brownish, Colorless, Violet, GreenishTransparent, TranslucentTetragonal0.004
49Nontronite1.5 - 2.0Green, olive-green, yellow-green, yellow, orange, brownMonoclinic0.003
50Rhodonite5.5 - 6.5Red, pink, brownish-red, gray.Transparent, TranslucentTriclinic0.003
51Lafossaite3.0 - 4.0Grey-brown0.003
52Thaumasite3.5Colourless, whiteTransparent, TranslucentHexagonal0.003
53Molybdite3.0 - 4.0colorless, light greenish yellow, also pale blueTransparent, TranslucentOrthorhombic0.003
54Columbite-(Fe)6.0Black to brownish blackOpaqueOrthorhombic0.003
55Lizardite2.00.003
56Hanksite3.0 - 3.5Colourless to grey, yellow or almost black, colourless in transmitted light.Transparent, TranslucentHexagonal0.003
57Graphite1.0 - 2.0Iron black to steel-greyOpaqueHexagonal0.003
58Monazite-(Ce)5.0 - 5.5Commonly reddish brown to brown, shades of green to brown, yellow brown, rarely nearly white, yellow, colourless in transmitted light.TranslucentMonoclinic0.003
59Leucophanite4.0Pale yellow, greenish white, yellowish green, colourlessTransparent, TranslucentOrthorhombic0.003
60Lazurite5.0 - 5.5ultramarine, midnight blue, bluish green, greenOpaqueIsometric0.003
61Greenockite3.0 - 3.5Yellow to red.TranslucentHexagonal0.003
62Muscovite2.5White to colorless, silvery-white, and tinged various colors by impurities.Transparent, TranslucentMonoclinic0.003
63Iron4.5Iron-blackOpaqueIsometric0.003
64Ardennite-(As)6.0 - 7.0Yellow to BrownOpaqueOrthorhombic0.003
65Becquerelite2.5Amber-yellow, golden to lemon-yellow, yellow-orange, brownish yellow, yellow in transmitted lightTransparentOrthorhombic0.002
66Eucryptite6.5Colorless, white, pale tan, pale gray.Transparent, TranslucentTrigonal0.002
67Ewaldite1.0Bluish green, pale greenish grayTranslucentHexagonal0.002
68Forsterite7.0Green, pale yellow or white.Transparent, TranslucentOrthorhombic0.002
69Fluorophlogopite2.0 - 3.0Pale yellow0.002
70Brucite2.5 - 3.0White, light greenish, grayish, bluish, honey-yellow, brownish red deep brown (manganoan varieties)Transparent, TranslucentTrigonal0.002
71Magnesite3.5 - 4.5Colourless, white, greyish-white, yellowish, brown, faintly pink, lilac-rose, colourless in transmitted light.Transparent, TranslucentTrigonal0.002
72Miserite5.5 - 6.0PinkTranslucentTriclinic0.002
73Arfvedsonite5.0 - 6.0Bluish-black to black.Translucent, OpaqueMonoclinic0.002
74Safflorite4.5 - 5.0Tin-white, tarnishing to dark greyOpaqueOrthorhombic0.002
75Weloganite3.5Light yellow, amber-yellow, whiteTranslucentTriclinic0.002
76Cookeite2.5 - 3.5White, yellowish green, pink, brownTranslucentMonoclinic0.002
77Saponite1.5 - 2.0White, gray-green, bluish, yellowMonoclinic0.002
78Copiapite2.5 - 3.0Crystals: sulfur-yellow to orange, massive material: greenish-yellow to olive-green.Transparent, Translucent, OpaqueTriclinic0.002
79Stilpnomelane3.0 - 4.0Red, brown, black, dark green, dark reddish brown, golden brownTranslucentTriclinic0.002
80Vonsenite5.0Black, greenish blackOpaqueOrthorhombic0.002
81Antigorite3.5 - 4.0green, green-blue, white, brown, blackTransparentMonoclinic0.002
82Parisite-(Ce)4.5Brown, brownish-yellow, waxy yellow, gray-yellow, colourless to yellow in transmitted light.Transparent, TranslucentMonoclinic0.002
83Gageite3.0Usually brownish purple, brown, pinkish brown, light pink, light brown, also colorless in small crystalsTransparent, TranslucentMonoclinic0.002
84Fairfieldite3.5White, greenish white, light amber, salmon-yellow, colourless in transmitted light.Transparent, TranslucentTriclinic0.002
85Marshallsussmanite3.0Light pink to deep pink, orange-pink0.002
86Baddeleyite6.5Colourless to yellow, green, greenish or reddish brown, brown, iron-black, colourless to brown in transmitted lightTransparentMonoclinic0.002
87Plumbojarosite1.5 - 2.0Golden-brown to dark-brown, dark brown-red, blackishTranslucent, OpaqueTrigonal0.002
88Artinite2.5White, colourless in transmitted light.TransparentMonoclinic0.002
89Hydrozincite2.0 - 2.5White to grey, stained pale pink, or pale yellow or brown, colourless in transmitted light.Transparent, TranslucentMonoclinic0.002
90Zinkenite3.0 - 3.5Steel-greyOpaqueHexagonal0.002
91Gypsum2.0Colourless to white, often tinged other hues due to impurities, colourless in transmitted light..Transparent, Translucent, OpaqueMonoclinic0.002
92Spinel7.5 - 8.0Black, blue, red, violet, green, brown, pinkTransparent, TranslucentIsometric0.002
93Cristobalite6.0 - 7.0Colorless, white, also blue grey, brown, grey, yellowTransparent, TranslucentTetragonal0.002
94Tetrawickmanite3.5 - 4.5Honey-yellow, brown-orangeTransparent, TranslucentTetragonal0.002
95Topaz8.0Colourless, white, pale blue, light green, yellow, yellowish brown, or redTransparent, TranslucentOrthorhombic0.002
96Cosalite2.5 - 3.0GreyOpaqueOrthorhombic0.002
97Albite6.0 - 6.5White to grey, bluish, greenish, reddishTransparent, TranslucentTriclinic0.002
98Diaspore6.5 - 7.0white, brown, colourless, pale yellow, greyish, greenish grey, lilac, pinkishTransparent, TranslucentOrthorhombic0.002
99Mellite2.0 - 2.5Honey to wax yellow, brown to reddish, gray, seldom white, colourless to pale yellow in transmitted light.Transparent, TranslucentTetragonal0.002
100Hedyphane4.0 - 5.0White, yellowish white, buff, bluish, colourless in transmitted light.Hexagonal0.002