# Mineral Hardness Color Transparency Crystal System Probability See More
1Dickite2.0 - 2.5White, or tinted by impuritiesTransparentMonoclinic0.054
2Montmorillonite1.0 - 2.0White, buff, yellow, green, rarely pale pink to redTranslucentMonoclinic0.051
3Nickeline5.0 - 5.5Pale copper redOpaqueHexagonal0.045
4Stilpnomelane3.0 - 4.0Red, brown, black, dark green, dark reddish brown, golden brownTranslucentTriclinic0.042
5Margarosanite2.5 - 3.0Colorless, grayish-white (due to included native lead)Transparent, TranslucentTriclinic0.041
6Zunyite7.0Colourless, grey, white, flesh-redTransparent, TranslucentIsometric0.041
7Tephroite6.0Grey, olive-green, flesh red or reddish-brown, dark brown.TranslucentOrthorhombic0.033
8Margarite4.0Grayish, pale pink, yellow, green. Colorless in thin section.TranslucentMonoclinic0.027
9Antimony3.0 - 3.5Tin-whiteOpaqueTrigonal0.025
10Willhendersonite3.0Colorless, whiteTransparentTriclinic0.019
11Davyne5.5 - 6.0Colourless, whiteTransparent, TranslucentHexagonal0.013
12Sanidine6.0Colourless, white, grey, yellowish white, or reddish whiteTransparent, TranslucentMonoclinic0.013
13Pyrope7.5Blood red, orange red, purple red, pink, black red, colorless.Isometric0.012
14Leucite5.5 - 6.0White, greyTransparent, TranslucentTetragonal0.011
15Almandine7.0 - 7.5Deep red, brownish red, red-violet, blackTransparent, TranslucentIsometric0.011
16Aerinite3.0blue to blue-greenTransparentMonoclinic0.01
17Rammelsbergite5.5 - 6.0Tin white with faint pinkish hueOpaqueOrthorhombic0.009
18Hedyphane4.0 - 5.0White, yellowish white, buff, bluish, colourless in transmitted light.Hexagonal0.009
19Marialite5.5 - 6.0Bluish, Brownish, Colorless, Violet, GreenishTransparent, TranslucentTetragonal0.009
20Zektzerite6.0Colourless, pink (often zoned)Orthorhombic0.009
21Plumosite2.0 - 3.0grey0.009
22Bismuth2.0 - 2.5Reddish-white to creamy-white, tarnishes iridescent pinkish, yellowish or bluishOpaqueTrigonal0.009
23Wollastonite4.5 - 5.0White, gray-white, light green, pinkish, brown, red, yellowTransparent, TranslucentTriclinic0.008
24Magnesio-hastingsite5.0 - 6.0Green to brownish-greenMonoclinic0.008
25Corundum9.0Colourless, blue, red, pink, yellow, grey, golden-brownTransparent, Translucent, OpaqueTrigonal0.008
26Tacharanite5.0WhiteTranslucentMonoclinic0.008
27Muscovite2.5White to colorless, silvery-white, and tinged various colors by impurities.Transparent, TranslucentMonoclinic0.008
28Skutterudite5.5 - 6.0Tin-white to silver-gray, gray (tarnished)OpaqueIsometric0.007
29Nepheline5.5 - 6.0White, grey, yellowishTransparent, OpaqueHexagonal0.007
30Scainiite3.5 - 4.0Black, bluish metallic with dark red tintOpaqueMonoclinic0.007
31Tremolite5.0 - 6.0White, brown, colourless, grey, light green, green, light yellow, pink-violetTransparent, TranslucentMonoclinic0.007
32Barahonaite-(Al)2.5 - 3.00.007
33Anthophyllite5.5 - 6.0White, greenish grey, green, clove brown, or brownish greenTransparent, TranslucentOrthorhombic0.006
34Bementite6.0Brown, dark brown, golden brown, grayish-yellowTranslucentMonoclinic0.006
35Vonsenite5.0Black, greenish blackOpaqueOrthorhombic0.006
36Geocronite2.5 - 3.0Light lead gray to grayishOpaqueMonoclinic0.006
37Braunite6.0 - 6.5Brownish black, steel-greyOpaqueTetragonal0.006
38Dawsonite3.0Colourless to white, rarely pink, colourless in transmitted lightTransparentOrthorhombic0.005
39Magnesite3.5 - 4.5Colourless, white, greyish-white, yellowish, brown, faintly pink, lilac-rose, colourless in transmitted light.Transparent, TranslucentTrigonal0.005
40Alumohydrocalcite2.5Chalky white to pale blue, pale yellow, cream, gray, pale rose or brownish pink to dark violet in chromian varietiesTransparent, Translucent, OpaqueTriclinic0.005
41Rhodesite3.0 - 4.0WhiteTransparent, TranslucentOrthorhombic0.005
42Okenite4.5 - 5.0White to slightly yellow, blueTransparent, TranslucentTriclinic0.005
43Lollingite5.0 - 5.5Steel gray to silver white0.005
44Nakauriite5.0 - 5.5Translucent blueOrthorhombic0.004
45Bismoclite2.0 - 2.5Cream-white, greyish, yellowish brown, colourless in thin sectionTransparent, TranslucentTetragonal0.004
46Berthierite2.0 - 3.0Dark steel-grey, often with iridescent tarnish.OpaqueOrthorhombic0.004
47Pyrochroite2.5 - 3.0Colourless, greenish, bluish (fresh), brown to black (exposed), flesh-red or amethystine in transmitted lightTranslucent, OpaqueTrigonal0.004
48Chabazite-Na4.0Colourless0.004
49Pharmacolite2.0 - 2.5White or colorless, grayish white, colorless in transmitted light.Transparent, TranslucentMonoclinic0.004
50Metaswitzerite2.5Light golden brown, pale pink, whiteTransparent, TranslucentMonoclinic0.004
51Gonnardite4.0 - 5.0Orthorhombic0.004
52Anorthite6.0 - 6.5Colourless, reddish grey, whiteTransparent, TranslucentTriclinic0.004
53Hydromagnesite3.5Colourless to white, colourless in transmitted lightTransparentMonoclinic0.004
54Tuscanite5.5 - 6.0ColourlessTransparentMonoclinic0.004
55Zinkenite3.0 - 3.5Steel-greyOpaqueHexagonal0.004
56Analcime5.0 - 5.5White, colourless, gray, pink, greenish, yellowishTransparent, TranslucentTriclinic0.004
57Elpidite5.0Colorless, white, gray, yellowish, orange, brown, beigeTransparent, Translucent, OpaqueOrthorhombic0.004
58Kaolinite2.0 - 2.5White to cream and pale-yellow, also often stained various hues, tans and browns being common.Translucent, OpaqueTriclinic0.004
59Saponite1.5 - 2.0White, gray-green, bluish, yellowMonoclinic0.003
60Burbankite3.5 - 4.0Colorless, grayish yellow, pale yellow, pink, pale greenish.Transparent, TranslucentHexagonal0.003
61Bazzite6.5 - 7.0Deep blue or other shades of blue, blue-green.Transparent, TranslucentHexagonal0.003
62Pyrophyllite1.0 - 2.0White, gray, pale blue, pale green, pale yellow, brownish greenTranslucent, OpaqueTriclinic0.003
63Tridymite6.5 - 7.0Colourless, white, yellowish white, or greyTransparent, TranslucentTriclinic0.003
64Ashcroftine-(Y)5.0PinkTransparentTetragonal0.003
65Vishnevite5.0 - 6.0colourless, light blue, orange-yellow, whiteHexagonal0.003
66Pumpellyite-(Al)5.50.003
67Palygorskite2.0 - 2.5White. grayish, yellowish, gray-greenTranslucentMonoclinic0.003
68Jamesonite2.5Gray-black, iridescent at timesOpaqueMonoclinic0.003
69Germanite4.0Pale greyish-pinkOpaqueIsometric0.003
70Clinoptilolite-Ca3.5 - 4.0Monoclinic0.003
71Ludwigite5.0Dark-green to blackOpaqueOrthorhombic0.003
72Stokesite6.0Colourless, white, light blueTransparent, TranslucentOrthorhombic0.003
73Howlite3.5 - 6.5White, colorless, brownTransparentMonoclinic0.002
74Cowlesite5.0 - 5.5Colourless, WhiteOrthorhombic0.002
75Miserite5.5 - 6.0PinkTranslucentTriclinic0.002
76Colusite3.0 - 4.0Bronze, pinkish bronzeOpaqueIsometric0.002
77Epsomite2.0 - 2.5White, grey, colourless, or pink, greenish, colourless in transmitted light.Transparent, TranslucentOrthorhombic0.002
78Kleinite3.5Light to canary-yellow, orange, darkens to reddish yellow or orange in daylight and reverts to original color in darkness. Yellow to colourless in transmitted light.Transparent, TranslucentHexagonal0.002
79Arsenolite1.5White, bluish, reddish to yellowish if impure with realgar or orpiment, colourless in transmitted lightTransparentIsometric0.002
80Gismondine4.0 - 5.0Colorless to white, very pale pink.Monoclinic0.002
81Bornite3.0Copper-red to pinchbeck-brown, quickly tarnishing to an iridescent purplish surface.OpaqueOrthorhombic0.002
82Sodalite5.5 - 6.0All ColoursTransparent, TranslucentIsometric0.002
83Geikielite5.0 - 6.0black, red, brownish blackTranslucent, OpaqueTrigonal0.002
84Umangite3.0Red, bluish red-black, iridescent violet-blue (tarnished)OpaqueTetragonal0.002
85Alunite3.5 - 4.0white, pale shades of gray, yellow, red, to reddish brownTransparent, TranslucentTrigonal0.002
86Glauberite2.5 - 3.0Grey, yellowish, colourless, colourless in transmitted lightTransparent, TranslucentMonoclinic0.002
87Sylvanite1.5 - 2.0Grey, white, pale yellow silver-whiteOpaqueMonoclinic0.002
88Famatinite3.0 - 4.0Deep pinkish brownOpaqueTetragonal0.002
89Cordylite-(Ce)4.5Colourless, yellowish, colourless to light yellow in transmitted lightTransparentHexagonal0.002
90Ceruleite5.5Turquoise-blue.Triclinic0.002
91Boulangerite2.5 - 3.0Lead greyOpaqueMonoclinic0.002
92Arsenic3.5Tin-white, tarnishing to dark grey or black.OpaqueTrigonal0.002
93Hauyne5.5 - 6.0Blue, white, grey, yellow, green, pink.0.002
94Manganite4.0gray-black, blackOpaqueMonoclinic0.002
95Emplectite2.0Greyish to tin-whiteOpaqueOrthorhombic0.002
96Albite6.0 - 6.5White to grey, bluish, greenish, reddishTransparent, TranslucentTriclinic0.002
97Probertite3.5Colourless, colourless in transmitted lightTransparentMonoclinic0.002
98Scheelite4.5 - 5.0Tan, golden-yellow, colourless, white, greenish, dark brown, etc., colourless in transmitted lightTransparent, OpaqueTetragonal0.002
99Breithauptite5.5Copper-red with a violet tintOpaqueHexagonal0.002
100Altaite2.0 - 3.0Tin-white with a light yellow tint, yellow-brown, blue (tarnished)OpaqueIsometric0.002