# Mineral Hardness Color Transparency Crystal System Probability See More
1Andalusite6.5 - 7.5Pink to red brown, occasionally yellow, green, white, gray rarely violetTransparent, TranslucentOrthorhombic0.063
2Leucite5.5 - 6.0White, greyTransparent, TranslucentTetragonal0.033
3Chrysoberyl8.5Green shades, emerald-green, greenish white, yellowish green, greenish brown, yellow, blueTransparent, TranslucentOrthorhombic0.023
4Orthoclase6.0Colorless to white, Greenish white, Grayish yellow, Pale pinkTransparent, TranslucentMonoclinic0.022
5Kaolinite2.0 - 2.5White to cream and pale-yellow, also often stained various hues, tans and browns being common.Translucent, OpaqueTriclinic0.021
6Almandine7.0 - 7.5Deep red, brownish red, red-violet, blackTransparent, TranslucentIsometric0.021
7Magnesite3.5 - 4.5Colourless, white, greyish-white, yellowish, brown, faintly pink, lilac-rose, colourless in transmitted light.Transparent, TranslucentTrigonal0.021
8Howlite3.5 - 6.5White, colorless, brownTransparentMonoclinic0.015
9Sepiolite2.0White, light gray or light yellow.Translucent, OpaqueOrthorhombic0.014
10Sodalite5.5 - 6.0All ColoursTransparent, TranslucentIsometric0.014
11Analcime5.0 - 5.5White, colourless, gray, pink, greenish, yellowishTransparent, TranslucentTriclinic0.014
12Opal5.5 - 6.5Colourless, white, yellow, red, orange, green, brown, black, blueTransparent, Translucent0.013
13Mellite2.0 - 2.5Honey to wax yellow, brown to reddish, gray, seldom white, colourless to pale yellow in transmitted light.Transparent, TranslucentTetragonal0.013
14Anapaite3.5Green, greenish-white, milky white, colorless, colourless to light green in transmitted light.TransparentTriclinic0.012
15Ilmenite5.0 - 6.0Iron black or blackOpaqueTrigonal0.011
16Microcline6.0 - 6.5White, grey, greyish yellow, yellowish, tan, salmon-pink, bluish green, green.Transparent, TranslucentTriclinic0.011
17Lizardite2.00.01
18Hydroxylherderite5.0 - 5.5Colorless, gray, brown, pale yellow, greenish white, light blue, purple, colourless in transmitted light.Transparent, TranslucentMonoclinic0.01
19Montmorillonite1.0 - 2.0White, buff, yellow, green, rarely pale pink to redTranslucentMonoclinic0.01
20Muscovite2.5White to colorless, silvery-white, and tinged various colors by impurities.Transparent, TranslucentMonoclinic0.01
21Sylvanite1.5 - 2.0Grey, white, pale yellow silver-whiteOpaqueMonoclinic0.009
22Topaz8.0Colourless, white, pale blue, light green, yellow, yellowish brown, or redTransparent, TranslucentOrthorhombic0.009
23Gadolinite-(Y)6.5 - 7.0Black, greenish-black, brownOpaqueMonoclinic0.007
24Staurolite7.0 - 7.5Dark brown, brownish-black, red-brownTranslucentMonoclinic0.007
25Hydroxylapatite5.0White, grey, yellow, green, violet, purple, red or brownTransparent, Translucent, OpaqueHexagonal0.007
26Baryte3.0Colourless, white, yellow, brown, grey, blue, etc., colourless in transmitted light (also tinted yellow, brown, green, blue, etc.)Transparent, Translucent, OpaqueOrthorhombic0.006
27Phlogopite2.0 - 3.0Brown, gray, green, yellow, or reddish brownTransparent, TranslucentMonoclinic0.006
28Cordierite7.0 - 7.5Grey, blue, blue-violet, greenish, yellowish brown, colourless to very light blue in transmitted light.Transparent, TranslucentOrthorhombic0.006
29Chondrodite6.0 - 6.5Yellow, Red or Brown.Transparent, TranslucentMonoclinic0.006
30Lollingite5.0 - 5.5Steel gray to silver white0.006
31Ulexite2.5Colourless, white, grey with included clays.TransparentTriclinic0.006
32Beryl7.5 - 8.0Colorless, green, blue, yellow, white, pink, etc.Hexagonal0.006
33Cobaltite5.5Reddish silver white, violet steel gray, or black.OpaqueOrthorhombic0.006
34Nickelskutterudite5.5 - 6.0Tin white - silver greyOpaqueIsometric0.006
35Bismuth2.0 - 2.5Reddish-white to creamy-white, tarnishes iridescent pinkish, yellowish or bluishOpaqueTrigonal0.005
36Ferberite4.0 - 4.5Black, dark brown in transmitted lightOpaqueMonoclinic0.005
37Tantalite-(Mn)6.0Pink to nearly colourless, reddish brown to blackOpaqueOrthorhombic0.005
38Titanite5.0 - 5.5Colourless, brown, green, yellow, rose-red or black.Transparent, TranslucentMonoclinic0.005
39Hydrocerussite3.5White or grey, colourless in transmitted lightTransparent, TranslucentTrigonal0.005
40Datolite5.0 - 5.5White, greyish, pale green, red, yellow, pink, etc.Transparent, Translucent, OpaqueMonoclinic0.005
41Berthierite2.0 - 3.0Dark steel-grey, often with iridescent tarnish.OpaqueOrthorhombic0.004
42Ussingite6.0 - 7.0Pale to medium violet, reddish violet, sometimes barely tinted purpleTransparent, TranslucentTriclinic0.004
43Gearksutite2.0white, colourless (including in transmitted light)Triclinic0.004
44Monazite-(Ce)5.0 - 5.5Commonly reddish brown to brown, shades of green to brown, yellow brown, rarely nearly white, yellow, colourless in transmitted light.TranslucentMonoclinic0.004
45Anhydrite3.0 - 3.5Colourless, bluish, blue-grey, violet, burgundy-red, white, rose-pink, brownish, reddish, grey, dark grey, colourless in transmitted lightTransparent, TranslucentOrthorhombic0.004
46Hydromagnesite3.5Colourless to white, colourless in transmitted lightTransparentMonoclinic0.004
47Wavellite3.5 - 4.0Green to yellowish-green and yellow, greenish white, yellowish-brown, brown, brownish-black, blue, white and colourless, colourless in transmitted light.Transparent, TranslucentOrthorhombic0.004
48Nickeline5.0 - 5.5Pale copper redOpaqueHexagonal0.004
49Bismutite2.5 - 3.5Yellow to brown, greenish, green-grey, grey or black, colourless or tinted in shades of faint yellow, green, etc. in transmitted light.Transparent, TranslucentOrthorhombic0.004
50Celestine3.0 - 3.5Colourless, shades of light blue, white, reddish, greenish, brownish, greyish, colourless or lightly tinted in transmitted lightTransparent, TranslucentOrthorhombic0.004
51Scheelite4.5 - 5.0Tan, golden-yellow, colourless, white, greenish, dark brown, etc., colourless in transmitted lightTransparent, OpaqueTetragonal0.004
52Xonotlite6.5White, grey, pale pink, colorlessTransparent, TranslucentMonoclinic0.004
53Calcite3.0White, Yellow, Red, Orange, Blue, Green, Brown, Gray etc.Transparent, TranslucentTrigonal0.004
54Eucryptite6.5Colorless, white, pale tan, pale gray.Transparent, TranslucentTrigonal0.004
55Sanidine6.0Colourless, white, grey, yellowish white, or reddish whiteTransparent, TranslucentMonoclinic0.004
56Glauberite2.5 - 3.0Grey, yellowish, colourless, colourless in transmitted lightTransparent, TranslucentMonoclinic0.004
57Spinel7.5 - 8.0Black, blue, red, violet, green, brown, pinkTransparent, TranslucentIsometric0.004
58Trona2.5Colourless, gray-white, light yellow, colourless in transmitted light.TranslucentMonoclinic0.003
59Barytocalcite4.0Colourless, white, greyish, greenish, light yellowTransparent, TranslucentMonoclinic0.003
60Tetrahedrite3.5 - 4.0Steel- to iron-grayOpaqueIsometric0.003
61Bindheimite4.0 - 4.5Yellow, yellow-brown, brown, white, grey, greenish, colourless to yellow and brown in transmitted lightTranslucent, OpaqueIsometric0.003
62Miargyrite2.5Black with dark red internal reflectionsMonoclinic0.003
63Polylithionite2.0 - 3.0white, gray, violet, light green, pinkishTransparentMonoclinic0.003
64Columbite-(Mn)6.0Black to brownish black, reddish brown in transmitted lightTransparent, Translucent, OpaqueOrthorhombic0.003
65Magnetite5.5 - 6.5Greyish black or iron blackOpaqueIsometric0.003
66Clinohumite6.0Monoclinic0.003
67Vesuvianite6.5Brown, yellow, brown-black, light green, emerald green, white, red, purple, violet, blue-green to blueTransparent, TranslucentTetragonal0.003
68Cristobalite6.0 - 7.0Colorless, white, also blue grey, brown, grey, yellowTransparent, TranslucentTetragonal0.003
69Crandallite5.0Yellow, white, gray, colorless in transmitted light.Translucent, OpaqueTrigonal0.003
70Turquoise5.0 - 6.0bright blue, sky-blue, pale green, blue-green, turquoise-blue, apple-green, green-grayTransparent, Translucent, OpaqueTriclinic0.003
71Graphite1.0 - 2.0Iron black to steel-greyOpaqueHexagonal0.003
72Strontianite3.5Colourless, white, gray, light yellow, green, brown, colourless in transmitted lightTransparent, TranslucentOrthorhombic0.003
73Cryolite2.5Colourless, white, brown, grey, black, colourless in transmitted light.Transparent, TranslucentMonoclinic0.003
74Tellurite2.0White to yellow, bright yellow to orange-yellow, nearly colourless in transmitted lightTransparentOrthorhombic0.003
75Carpathite1.5Yellow, yellowish brownTranslucentMonoclinic0.003
76Collinsite3.0 - 3.5Light brown, light yellow-brown to colourless in transmitted light.TranslucentTriclinic0.003
77Danburite7.0 - 7.5Pale yellow, yellowish-brown, colourlessTransparent, TranslucentOrthorhombic0.003
78Augite5.5 - 6.0Brown-green, black, green-black, brown, purplish brownTranslucent, OpaqueMonoclinic0.003
79Gonnardite4.0 - 5.0Orthorhombic0.003
80Pyrite6.0 - 6.5Pale brass-yellowOpaqueIsometric0.003
81Fluorophlogopite2.0 - 3.0Pale yellow0.003
82Greenockite3.0 - 3.5Yellow to red.TranslucentHexagonal0.003
83Ferronigerite-2N1S3.5Trigonal0.003
84Roscherite4.5Brown, red, orange, greenish gray, yellowish green to brown in transmitted lightTransparent, TranslucentMonoclinic0.003
85Leadhillite2.5 - 3.0Colourless to white, grey, yellowish, pale green to blue, colourless in transmitted light.Transparent, TranslucentMonoclinic0.003
86Narsarsukite7.0Yellow, yellowish-white, grayish-white, honey-yellow, tan, greenish-yellowTransparent, TranslucentTetragonal0.003
87Schorl7.0Bluish-black to black, sometimes brownish-black, rarely greenish-black.Translucent, OpaqueTrigonal0.002
88Petalite6.5Colourless, white, grey, pinkTransparent, TranslucentMonoclinic0.002
89Stibarsen3.0 - 4.0White, reddish gray, tarnishes grayOpaqueTrigonal0.002
90Arsenic3.5Tin-white, tarnishing to dark grey or black.OpaqueTrigonal0.002
91Tyuyamunite1.5 - 2.0Canary yellow, lemon-yellow, greenish yellow (upon exposure to sunlight), colourless to pale yellow in transmitted light.Translucent, OpaqueOrthorhombic0.002
92Corundum9.0Colourless, blue, red, pink, yellow, grey, golden-brownTransparent, Translucent, OpaqueTrigonal0.002
93Chabazite-Ca4.0 - 5.0Colourless, white, yellow, pink, redTransparent, TranslucentTriclinic0.002
94Spodumene6.5 - 7.0Colourless, yellow, light green, emerald-green, pink to violet, purple, white, grayTransparent, TranslucentMonoclinic0.002
95Montebrasite5.5 - 6.0White, colorless, gray white, very pale brown, pale pink, pale yellowTransparent, TranslucentTriclinic0.002
96Talc1.0Colorless, white, pale green, bright emerald-green to dark green, brown, grayTransparent, TranslucentTriclinic0.002
97Diamond10.0Colourless, yellowish to yellow, brown, black, blue, green or red, pink, champagne-tan, cognac-brown, lilac (very rare)Transparent, Translucent, OpaqueIsometric0.002
98Grossular6.5 - 7.0Brown, orange, red, yellow, green, white, colorlessTransparent, TranslucentIsometric0.002
99Alstonite4.0 - 4.5Colourless to snow white, yellow-gray, pale gray, pale cream, pink to pale rose-redTransparent, TranslucentTriclinic0.002
100Columbite-(Fe)6.0Black to brownish blackOpaqueOrthorhombic0.002