# Mineral Hardness Color Transparency Crystal System Probability See More
1Ussingite6.0 - 7.0Pale to medium violet, reddish violet, sometimes barely tinted purpleTransparent, TranslucentTriclinic0.193
2Pollucite6.5Almost always colorless or white, also light gray, light pink, light blue, pale violetTransparent, TranslucentIsometric0.101
3Grandidierite7.5Bluish green, greenish blueTransparent, TranslucentOrthorhombic0.039
4Petalite6.5Colourless, white, grey, pinkTransparent, TranslucentMonoclinic0.037
5Eucryptite6.5Colorless, white, pale tan, pale gray.Transparent, TranslucentTrigonal0.037
6Datolite5.0 - 5.5White, greyish, pale green, red, yellow, pink, etc.Transparent, Translucent, OpaqueMonoclinic0.034
7Cryolite2.5Colourless, white, brown, grey, black, colourless in transmitted light.Transparent, TranslucentMonoclinic0.025
8Talc1.0Colorless, white, pale green, bright emerald-green to dark green, brown, grayTransparent, TranslucentTriclinic0.024
9Phenakite7.5 - 8.0Colourless, white, yellow, pale roseTransparentTrigonal0.024
10Brucite2.5 - 3.0White, light greenish, grayish, bluish, honey-yellow, brownish red deep brown (manganoan varieties)Transparent, TranslucentTrigonal0.016
11Kurnakovite2.5 - 3.0White, colourless in transmitted lightTransparent, TranslucentTriclinic0.012
12Beryllonite5.5 - 6.0Colourless, white, rarely pale light yellow, colourless in transmitted light.Transparent, TranslucentMonoclinic0.009
13Witherite3.0 - 3.5Colourless, white, greyish, light yellow, colourless in transmitted light.Transparent, TranslucentOrthorhombic0.009
14Pezzottaite8.0raspberry red to pink0.008
15Opal5.5 - 6.5Colourless, white, yellow, red, orange, green, brown, black, blueTransparent, Translucent0.008
16Celestine3.0 - 3.5Colourless, shades of light blue, white, reddish, greenish, brownish, greyish, colourless or lightly tinted in transmitted lightTransparent, TranslucentOrthorhombic0.007
17Beryl7.5 - 8.0Colorless, green, blue, yellow, white, pink, etc.Hexagonal0.007
18Calcite3.0White, Yellow, Red, Orange, Blue, Green, Brown, Gray etc.Transparent, TranslucentTrigonal0.006
19Zoisite6.0 - 7.0Colourless, purple, greyish-white, grey, yellowish-brown, yellow, pink, greenTransparent, TranslucentOrthorhombic0.006
20Spinel7.5 - 8.0Black, blue, red, violet, green, brown, pinkTransparent, TranslucentIsometric0.006
21Gilalite2.0Translucent green, blue-greenMonoclinic0.006
22Chondrodite6.0 - 6.5Yellow, Red or Brown.Transparent, TranslucentMonoclinic0.006
23Clintonite3.5 - 6.0Brown, golden brown, reddish brown, yellow green, dark greenTransparent, TranslucentMonoclinic0.006
24Alunite3.5 - 4.0white, pale shades of gray, yellow, red, to reddish brownTransparent, TranslucentTrigonal0.006
25Montebrasite5.5 - 6.0White, colorless, gray white, very pale brown, pale pink, pale yellowTransparent, TranslucentTriclinic0.006
26Uvarovite6.5 - 7.0Green, emerald-green, green-blackTransparent, TranslucentIsometric0.005
27Topaz8.0Colourless, white, pale blue, light green, yellow, yellowish brown, or redTransparent, TranslucentOrthorhombic0.005
28Elbaite7.5Green, red to pink, blue, orange, yellow, colourlessTransparent, TranslucentTrigonal0.005
29Phosphophyllite3.0 - 3.5Bright blue-green to colourless, colourless in transmitted light.Transparent, TranslucentMonoclinic0.004
30Tremolite5.0 - 6.0White, brown, colourless, grey, light green, green, light yellow, pink-violetTransparent, TranslucentMonoclinic0.004
31Kovdorskite4.0Pale rose, pale blueMonoclinic0.004
32Cerussite3.0 - 3.5Colourless, white, gray, blue, or green, colourless in transmitted lightTransparent, TranslucentOrthorhombic0.004
33Spodumene6.5 - 7.0Colourless, yellow, light green, emerald-green, pink to violet, purple, white, grayTransparent, TranslucentMonoclinic0.004
34Cordierite7.0 - 7.5Grey, blue, blue-violet, greenish, yellowish brown, colourless to very light blue in transmitted light.Transparent, TranslucentOrthorhombic0.004
35Clinozoisite7.0colourless, green, grey, light green, yellow-green, pinkTransparent, TranslucentMonoclinic0.004
36Corundum9.0Colourless, blue, red, pink, yellow, grey, golden-brownTransparent, Translucent, OpaqueTrigonal0.004
37Tinzenite6.5 - 7.0Lemon-yellow, orange, redTriclinic0.004
38Miserite5.5 - 6.0PinkTranslucentTriclinic0.004
39Chabazite-Ca4.0 - 5.0Colourless, white, yellow, pink, redTransparent, TranslucentTriclinic0.004
40Magnesite3.5 - 4.5Colourless, white, greyish-white, yellowish, brown, faintly pink, lilac-rose, colourless in transmitted light.Transparent, TranslucentTrigonal0.004
41Svanbergite5.0colourless, yellow, reddish brown to rose-pink, colourless in transmitted lightTranslucentTrigonal0.004
42Fluorite4.0Purple, lilac, golden-yellow, green, colourless, blue, pink, champagne, brown.TransparentIsometric0.004
43Triplite5.0 - 5.5Brown, red-brown, dark brown, black (altered), light brownish u=yellow to dark reddish brown in transmitted light.OpaqueMonoclinic0.004
44Villiaumite2.0 - 2.5Dark carmine-red, dark red, light orange, pinkTransparentIsometric0.003
45Leadhillite2.5 - 3.0Colourless to white, grey, yellowish, pale green to blue, colourless in transmitted light.Transparent, TranslucentMonoclinic0.003
46Smithsonite4.0 - 4.5White, grey, yellow, green to apple-green, blue, pink, purple, bluish grey, and brown, colourless or faintly tinted in transmitted light.TranslucentTrigonal0.003
47Gobbinsite4.0Orthorhombic0.003
48Halite2.5Colourless, whitish, yellow, red, purple or blueTransparent, TranslucentIsometric0.003
49Fairfieldite3.5White, greenish white, light amber, salmon-yellow, colourless in transmitted light.Transparent, TranslucentTriclinic0.003
50Prehnite6.0 - 6.5Colourless to gray to yellow, yellow-green or whiteTranslucentOrthorhombic0.003
51Sylvite1.5 - 2.0Colourless, grey, white, yellowish to reddish, seldom blue or violetTransparent, TranslucentIsometric0.003
52Albite6.0 - 6.5White to grey, bluish, greenish, reddishTransparent, TranslucentTriclinic0.003
53Talmessite5.0White, colorless, translucent pale green (nickelian), brownish pink (cobaltian)TransparentTriclinic0.003
54Gmelinite-Na4.5Colorles, white, reddish white, salmon-red, yellowish, greenish whiteTransparent, Translucent, OpaqueHexagonal0.003
55Danburite7.0 - 7.5Pale yellow, yellowish-brown, colourlessTransparent, TranslucentOrthorhombic0.002
56Beyerite2.0 - 3.0White to bright yellow, or greyish-green, grey, light yellow to colourless in transmitted light.Orthorhombic0.002
57Tellurobismuthite1.5 - 2.0Lead-greyOpaqueTrigonal0.002
58Hydroxylherderite5.0 - 5.5Colorless, gray, brown, pale yellow, greenish white, light blue, purple, colourless in transmitted light.Transparent, TranslucentMonoclinic0.002
59Titanite5.0 - 5.5Colourless, brown, green, yellow, rose-red or black.Transparent, TranslucentMonoclinic0.002
60Gypsum2.0Colourless to white, often tinged other hues due to impurities, colourless in transmitted light..Transparent, Translucent, OpaqueMonoclinic0.002
61Epididymite5.5ColourlessTransparentOrthorhombic0.002
62Nosean5.5Colorless, white, gray, gray-brown, blue, blackTransparent, TranslucentIsometric0.002
63Sodalite5.5 - 6.0All ColoursTransparent, TranslucentIsometric0.002
64Bazzite6.5 - 7.0Deep blue or other shades of blue, blue-green.Transparent, TranslucentHexagonal0.002
65Quartz7.0Colorless, purple, rose, red, black, yellow, brown, green, blue, orange, etc.Transparent, TranslucentTrigonal0.002
66Matlockite2.5 - 3.0Colourless, light yellow to light golden-yellow, greenishTransparentTetragonal0.002
67Ephesite3.5 - 4.5Translucent pinkTriclinic0.002
68Fluorapatite5.0Colourless to white when pure, also green, blue, pink, yellow, brown, violet, purple.Transparent, OpaqueHexagonal0.002
69Xonotlite6.5White, grey, pale pink, colorlessTransparent, TranslucentMonoclinic0.002
70Glauberite2.5 - 3.0Grey, yellowish, colourless, colourless in transmitted lightTransparent, TranslucentMonoclinic0.002
71Kaolinite2.0 - 2.5White to cream and pale-yellow, also often stained various hues, tans and browns being common.Translucent, OpaqueTriclinic0.002
72Ferronigerite-2N1S3.5Trigonal0.002
73Ulexite2.5Colourless, white, grey with included clays.TransparentTriclinic0.002
74Scheelite4.5 - 5.0Tan, golden-yellow, colourless, white, greenish, dark brown, etc., colourless in transmitted lightTransparent, OpaqueTetragonal0.002
75Margarite4.0Grayish, pale pink, yellow, green. Colorless in thin section.TranslucentMonoclinic0.002
76Barrerite3.0 - 4.0White, PinkTransparent, TranslucentOrthorhombic0.002
77Arsentsumebite4.0 - 5.0Emerald-green, grass-green, apple-green, pale bluish green.TranslucentMonoclinic0.002
78Whitlockite5.0Colourless, grey-white, light pink, light yellow, colourless in transmitted light.Transparent, TranslucentTrigonal0.002
79Fluorapophyllite-(K)4.5 - 5.0Colourless, pale green, aquamarine, white, pink, yellowTransparent, TranslucentTetragonal0.002
80Dolomite3.5 - 4.0Colourless, white, gray, reddish-white, brownish-white, or pink, colourless in transmitted lightTransparent, TranslucentTrigonal0.002
81Chrysoberyl8.5Green shades, emerald-green, greenish white, yellowish green, greenish brown, yellow, blueTransparent, TranslucentOrthorhombic0.002
82Tugtupite4.0Commonly red, also white to pink, bluish white, greenish whiteTranslucentTetragonal0.002
83Sellaite5.0 - 5.5Colourless, white, colourless in transmitted light.TransparentTetragonal0.002
84Colemanite4.5Colourless, white, yellowish, grey, colourless in transitted lightTransparent, TranslucentMonoclinic0.002
85Ajoite2.0 - 2.5Bluish greenTranslucentTriclinic0.002
86Anhydrite3.0 - 3.5Colourless, bluish, blue-grey, violet, burgundy-red, white, rose-pink, brownish, reddish, grey, dark grey, colourless in transmitted lightTransparent, TranslucentOrthorhombic0.002
87Roselite3.5Rose-red, pink, rose coloured in transmitted light.Transparent, TranslucentMonoclinic0.002
88Eudialyte5.0 - 6.0Variable: Carmine-red, orange-red, orange, pink, cherry-red, brownish-red, yellowish-brown, brown, yellow, violet, green.TranslucentTrigonal0.002
89Ashcroftine-(Y)5.0PinkTransparentTetragonal0.002
90Hydroboracite2.0Colourless, whiteTransparentMonoclinic0.002
91Zanazziite5.0Pale to dark olive-greenTranslucentMonoclinic0.002
92Bayldonite4.5Green, apple-green, yellow-green, dark green to black (crystals)Transparent, TranslucentMonoclinic0.002
93Pargasite5.0 - 6.0Light-brown, brown, greenish-brown to dark green and black.Monoclinic0.001
94Hydromagnesite3.5Colourless to white, colourless in transmitted lightTransparentMonoclinic0.001
95Alabandite3.5 - 4.0Iron black, brown, greyish black, green, dull brown (tarnished)OpaqueIsometric0.001
96Euclase7.5Colorless, white, pale green to deep yellowish green, greenish blue, pale blue to deep blueTransparent, TranslucentMonoclinic0.001
97Fluellite3.0Colourless, white, yellowTransparentOrthorhombic0.001
98Clinochlore2.0 - 2.5Green, yellowish green, olive green, blackish green, bluish green, white, pinkTransparent, TranslucentMonoclinic0.001
99Uvite7.5Black, greenish-black, brownish-black, brown, green, colourlessTransparent, TranslucentTrigonal0.001
100Florencite-(Ce)5.0 - 6.00.001