# Mineral Hardness Color Transparency Crystal System Probability See More
1Sylvite1.5 - 2.0Colourless, grey, white, yellowish to reddish, seldom blue or violetTransparent, TranslucentIsometric0.195
2Datolite5.0 - 5.5White, greyish, pale green, red, yellow, pink, etc.Transparent, Translucent, OpaqueMonoclinic0.101
3Colemanite4.5Colourless, white, yellowish, grey, colourless in transitted lightTransparent, TranslucentMonoclinic0.077
4Kurnakovite2.5 - 3.0White, colourless in transmitted lightTransparent, TranslucentTriclinic0.039
5Celestine3.0 - 3.5Colourless, shades of light blue, white, reddish, greenish, brownish, greyish, colourless or lightly tinted in transmitted lightTransparent, TranslucentOrthorhombic0.037
6Prehnite6.0 - 6.5Colourless to gray to yellow, yellow-green or whiteTranslucentOrthorhombic0.029
7Fluorapophyllite-(K)4.5 - 5.0Colourless, pale green, aquamarine, white, pink, yellowTransparent, TranslucentTetragonal0.027
8Brucite2.5 - 3.0White, light greenish, grayish, bluish, honey-yellow, brownish red deep brown (manganoan varieties)Transparent, TranslucentTrigonal0.024
9Augelite4.5 - 5.0White, colourless, pale yellow, light green, rarely blue or pink, colourless in transmitted light.TransparentMonoclinic0.022
10Calcite3.0White, Yellow, Red, Orange, Blue, Green, Brown, Gray etc.Transparent, TranslucentTrigonal0.021
11Svanbergite5.0colourless, yellow, reddish brown to rose-pink, colourless in transmitted lightTranslucentTrigonal0.02
12Stokesite6.0Colourless, white, light blueTransparent, TranslucentOrthorhombic0.017
13Halite2.5Colourless, whitish, yellow, red, purple or blueTransparent, TranslucentIsometric0.014
14Quartz7.0Colorless, purple, rose, red, black, yellow, brown, green, blue, orange, etc.Transparent, TranslucentTrigonal0.011
15Woodhouseite4.5White, flesh-pink, colourlessTransparent, TranslucentTrigonal0.011
16Thaumasite3.5Colourless, whiteTransparent, TranslucentHexagonal0.009
17Quintinite2.0Yellow to colorless, orange-brownTransparentHexagonal0.009
18Thomsonite-Ca5.0 - 5.5Colourless, white, light yellow, light green, pink, brownTransparent, TranslucentOrthorhombic0.009
19Fluorite4.0Purple, lilac, golden-yellow, green, colourless, blue, pink, champagne, brown.TransparentIsometric0.008
20Dolomite3.5 - 4.0Colourless, white, gray, reddish-white, brownish-white, or pink, colourless in transmitted lightTransparent, TranslucentTrigonal0.008
21Hanksite3.0 - 3.5Colourless to grey, yellow or almost black, colourless in transmitted light.Transparent, TranslucentHexagonal0.008
22Harmotome4.0 - 5.0Colorless, white, grey, pink, yellow, brownTransparent, TranslucentMonoclinic0.008
23Euclase7.5Colorless, white, pale green to deep yellowish green, greenish blue, pale blue to deep blueTransparent, TranslucentMonoclinic0.008
24Boracite7.0 - 7.5Green, blue, colourless, grey, white, dark green (ferroan), colourless in transmitted lightTransparent, TranslucentOrthorhombic0.007
25Analcime5.0 - 5.5White, colourless, gray, pink, greenish, yellowishTransparent, TranslucentTriclinic0.007
26Hydrotalcite2.0White, brownishTransparentTrigonal0.006
27Milarite6.0Hexagonal0.006
28Goosecreekite4.5Colorless, whiteTransparentMonoclinic0.005
29Whewellite2.5 - 3.0White, yellow, brown, colourless, colourless in transmitted light.Transparent, TranslucentMonoclinic0.005
30Strontianite3.5Colourless, white, gray, light yellow, green, brown, colourless in transmitted lightTransparent, TranslucentOrthorhombic0.005
31Witherite3.0 - 3.5Colourless, white, greyish, light yellow, colourless in transmitted light.Transparent, TranslucentOrthorhombic0.005
32Heulandite-Ca3.5 - 4.0White, Colorless, Red, Yellow, Brown, GreenTransparentMonoclinic0.005
33Bikitaite6.0Colorless, WhiteTransparent, TranslucentTriclinic0.004
34Ettringite2.0 - 2.5Colourless, colourless in transmitted light.TransparentTrigonal0.004
35Cryolite2.5Colourless, white, brown, grey, black, colourless in transmitted light.Transparent, TranslucentMonoclinic0.004
36Stellerite4.5Colourless to white, pink, orangeTransparentOrthorhombic0.004
37Trona2.5Colourless, gray-white, light yellow, colourless in transmitted light.TranslucentMonoclinic0.004
38Florencite-(Ce)5.0 - 6.00.004
39Chabazite-Ca4.0 - 5.0Colourless, white, yellow, pink, redTransparent, TranslucentTriclinic0.004
40Philipsbornite4.5yellow, green or greyTrigonal0.004
41Kovdorskite4.0Pale rose, pale blueMonoclinic0.004
42Pyrite6.0 - 6.5Pale brass-yellowOpaqueIsometric0.003
43Brewsterite-Sr5.0White0.003
44Thomsenolite2.0Colourless, white, pale lilac, brownish or reddish tinted due to staining, colourless in transmitted light.Transparent, TranslucentMonoclinic0.003
45Pyrophyllite1.0 - 2.0White, gray, pale blue, pale green, pale yellow, brownish greenTranslucent, OpaqueTriclinic0.003
46Creedite4.0white, violet, colourless, colourless in transmitted light.TransparentMonoclinic0.003
47Pollucite6.5Almost always colorless or white, also light gray, light pink, light blue, pale violetTransparent, TranslucentIsometric0.003
48Sulphur1.5 - 2.5Yellow, sulphur-yellow, brownish or greenish yellow, orange, whiteTransparent, TranslucentOrthorhombic0.003
49Magnesite3.5 - 4.5Colourless, white, greyish-white, yellowish, brown, faintly pink, lilac-rose, colourless in transmitted light.Transparent, TranslucentTrigonal0.003
50Hessite2.0 - 3.0lead-grey, steel-greyOpaqueMonoclinic0.003
51Inyoite2.0Colourless, turning white upon partial dehydration, colourless in transmitted lightTransparentMonoclinic0.003
52Salammoniac1.0 - 2.0Colourless, White, sometimes yellow or brown.TransparentIsometric0.003
53Hydromagnesite3.5Colourless to white, colourless in transmitted lightTransparentMonoclinic0.003
54Powellite3.5 - 4.0Yellow, straw-yellow, yellow-brown, brown, greenish yellow, grey, blue or black, colourless, black material is deep blue in transmitted light.Transparent, TranslucentTetragonal0.003
55Danburite7.0 - 7.5Pale yellow, yellowish-brown, colourlessTransparent, TranslucentOrthorhombic0.003
56Wardite5.0Colourless, white, lightly coloured blue to green, yellow-green, light yellow, brown, colourless in transmitted light.Transparent, OpaqueTetragonal0.002
57Anhydrite3.0 - 3.5Colourless, bluish, blue-grey, violet, burgundy-red, white, rose-pink, brownish, reddish, grey, dark grey, colourless in transmitted lightTransparent, TranslucentOrthorhombic0.002
58Inderite3.0Colourless, white, pink, colourless in transmitted lightTransparent, TranslucentMonoclinic0.002
59Cavansite3.0 - 4.0Greenish-blue to blueTransparentOrthorhombic0.002
60Zanazziite5.0Pale to dark olive-greenTranslucentMonoclinic0.002
61Kosnarite4.5Pale blue to pale green to colourless.Transparent, TranslucentTrigonal0.002
62Calaverite2.5 - 3.0Brass yellow to silver whiteOpaqueMonoclinic0.002
63Topaz8.0Colourless, white, pale blue, light green, yellow, yellowish brown, or redTransparent, TranslucentOrthorhombic0.002
64Antimony3.0 - 3.5Tin-whiteOpaqueTrigonal0.002
65Beryl7.5 - 8.0Colorless, green, blue, yellow, white, pink, etc.Hexagonal0.002
66Tarbuttite3.5White, colourless, yellow, red green or brown, colourless in transmitted light.Transparent, TranslucentTriclinic0.002
67Pectolite4.5 - 5.0Colourless, white, pale pink, greenish, pale blueTransparent, TranslucentTriclinic0.002
68Sanidine6.0Colourless, white, grey, yellowish white, or reddish whiteTransparent, TranslucentMonoclinic0.002
69Muscovite2.5White to colorless, silvery-white, and tinged various colors by impurities.Transparent, TranslucentMonoclinic0.002
70Phenakite7.5 - 8.0Colourless, white, yellow, pale roseTransparentTrigonal0.002
71Fluorapatite5.0Colourless to white when pure, also green, blue, pink, yellow, brown, violet, purple.Transparent, OpaqueHexagonal0.002
72Opal5.5 - 6.5Colourless, white, yellow, red, orange, green, brown, black, blueTransparent, Translucent0.002
73Smithsonite4.0 - 4.5White, grey, yellow, green to apple-green, blue, pink, purple, bluish grey, and brown, colourless or faintly tinted in transmitted light.TranslucentTrigonal0.002
74Marshallsussmanite3.0Light pink to deep pink, orange-pink0.002
75Baryte3.0Colourless, white, yellow, brown, grey, blue, etc., colourless in transmitted light (also tinted yellow, brown, green, blue, etc.)Transparent, Translucent, OpaqueOrthorhombic0.001
76Dickite2.0 - 2.5White, or tinted by impuritiesTransparentMonoclinic0.001
77Bertrandite6.0 - 7.0Colourless, pale yellow.TransparentOrthorhombic0.001
78Richterite5.0 - 6.0Brown to brownish-red, rose-red, or yellow, grey-brown, and also pale to dark green. dark green blue and grey blueTransparentMonoclinic0.001
79Prosopite4.5Greyish, white, colourless in transmitted light.Transparent, TranslucentMonoclinic0.001
80Cowlesite5.0 - 5.5Colourless, WhiteOrthorhombic0.001
81Paravauxite3.0Pale greenish white to colorless, colorless in transmitted light. also gray-white or Light brown.Transparent, TranslucentTriclinic0.001
82Goyazite4.5 - 5.0White, Yellow, honey-yellow, pink, lilac, orange or colourless, colourless in transmitted light.Transparent, TranslucentTrigonal0.001
83Hentschelite3.5Monoclinic0.001
84Senarmontite2.0 - 2.5Colourless to grayTransparent, TranslucentIsometric0.001
85Beryllonite5.5 - 6.0Colourless, white, rarely pale light yellow, colourless in transmitted light.Transparent, TranslucentMonoclinic0.001
86Glauberite2.5 - 3.0Grey, yellowish, colourless, colourless in transmitted lightTransparent, TranslucentMonoclinic0.001
87Willemite5.5Colorless, white, pastel green, apple-green, light blue, azure-blue, yellow, burgundy-red, brown, mahogany-brown, gray, black, pinkTransparent, TranslucentTrigonal0.001
88Brazilianite5.5Chartreuse yellow, pale yellow, yellow green, colourless, coloured varieties are colourless in transmitted light.TransparentMonoclinic0.001
89Bityite5.5White yellowish, colorless, white, brownishTransparent, TranslucentMonoclinic0.001
90Nifontovite3.5ColorlessTransparentMonoclinic0.001
91Wavellite3.5 - 4.0Green to yellowish-green and yellow, greenish white, yellowish-brown, brown, brownish-black, blue, white and colourless, colourless in transmitted light.Transparent, TranslucentOrthorhombic0.001
92Dioptase5.0Emerald Green, blue-greenTransparent, TranslucentTrigonal0.001
93Anglesite2.5 - 3.0Colorless to white, often tinted grey, yellow, green or blue, colourless in transmitted light.Transparent, Translucent, OpaqueOrthorhombic0.001
94Hydroboracite2.0Colourless, whiteTransparentMonoclinic0.001
95Gyrolite2.5Brown, Colorless, White, GreenTransparent, TranslucentTriclinic0.001
96Aragonite3.5 - 4.0Colorless to white or grey, often stained various hues by impurities, such as blue, green, red or violet, colourless in transmitted light.Transparent, TranslucentOrthorhombic0.001
97Mordenite3.0 - 4.0Colourless, white, yellowish, pinkishTransparent, TranslucentOrthorhombic0.001
98Alstonite4.0 - 4.5Colourless to snow white, yellow-gray, pale gray, pale cream, pink to pale rose-redTransparent, TranslucentTriclinic0.001
99Barytocalcite4.0Colourless, white, greyish, greenish, light yellowTransparent, TranslucentMonoclinic0.001
100Weloganite3.5Light yellow, amber-yellow, whiteTranslucentTriclinic0.001