# Mineral Hardness Color Transparency Crystal System Probability See More
1Amesite2.5 - 3.0Originally pale grayish blue-green, also white, colourless, pale green, pink to lilac (chromian)TranslucentTriclinic0.043
2Mercury2.5Tin whiteOpaqueTrigonal0.042
3Tephroite6.0Grey, olive-green, flesh red or reddish-brown, dark brown.TranslucentOrthorhombic0.032
4Bornite3.0Copper-red to pinchbeck-brown, quickly tarnishing to an iridescent purplish surface.OpaqueOrthorhombic0.03
5Eudialyte5.0 - 6.0Variable: Carmine-red, orange-red, orange, pink, cherry-red, brownish-red, yellowish-brown, brown, yellow, violet, green.TranslucentTrigonal0.03
6Umangite3.0Red, bluish red-black, iridescent violet-blue (tarnished)OpaqueTetragonal0.028
7Renierite4.0 - 5.0Orange-bronze, tarnishes reddishOpaqueTetragonal0.026
8Almandine7.0 - 7.5Deep red, brownish red, red-violet, blackTransparent, TranslucentIsometric0.025
9Chromite5.5BlackTranslucent, OpaqueIsometric0.022
10Davidite-(La)6.0BlackTrigonal0.02
11Manganberzeliite4.5 - 5.0Yellow-orange, yellowish red, colorless to orange in transmitted light.Transparent, TranslucentIsometric0.019
12Litharge2.0RedTransparentTetragonal0.019
13Sillimanite6.5 - 7.5Colorless, white, yellow, brown, green, gray.Transparent, TranslucentOrthorhombic0.019
14Richterite5.0 - 6.0Brown to brownish-red, rose-red, or yellow, grey-brown, and also pale to dark green. dark green blue and grey blueTransparentMonoclinic0.018
15Medaite2.5Brownish-redTranslucentMonoclinic0.017
16Hedyphane4.0 - 5.0White, yellowish white, buff, bluish, colourless in transmitted light.Hexagonal0.017
17Pyrope7.5Blood red, orange red, purple red, pink, black red, colorless.Isometric0.012
18Berthierine2.5Dark olive green, yellowish greenTransparentMonoclinic0.012
19Geikielite5.0 - 6.0black, red, brownish blackTranslucent, OpaqueTrigonal0.01
20Anorthite6.0 - 6.5Colourless, reddish grey, whiteTransparent, TranslucentTriclinic0.009
21Magnesio-hastingsite5.0 - 6.0Green to brownish-greenMonoclinic0.009
22Cinnabar2.0 - 2.5Tint or shade of red, cochineal red, brownish redTransparent, TranslucentTrigonal0.009
23Kentrolite5.0Black, sometimes with dark red internal reflectionsTranslucentOrthorhombic0.009
24Piemontite6.0 - 6.5Red, red-violet, red-brown to reddish blackTranslucent, OpaqueMonoclinic0.009
25Stilpnomelane3.0 - 4.0Red, brown, black, dark green, dark reddish brown, golden brownTranslucentTriclinic0.008
26Metacinnabar3.0Isometric0.008
27Vonsenite5.0Black, greenish blackOpaqueOrthorhombic0.007
28Berzelianite2.0Silver-White, shiny lead-grey, easily tarnishes iridescent blue-greyOpaqueIsometric0.007
29Djurleite2.5 - 3.0Black, gray in reflected lightOpaqueMonoclinic0.007
30Staurolite7.0 - 7.5Dark brown, brownish-black, red-brownTranslucentMonoclinic0.007
31Cafarsite5.5 - 6.0Dark brownOpaqueIsometric0.006
32Chabazite-Na4.0Colourless0.006
33Gaudefroyite6.0Hexagonal0.006
34Corundum9.0Colourless, blue, red, pink, yellow, grey, golden-brownTransparent, Translucent, OpaqueTrigonal0.006
35Cordylite-(Ce)4.5Colourless, yellowish, colourless to light yellow in transmitted lightTransparentHexagonal0.006
36Cobaltkoritnigite2.0 - 3.0Pale Light purple to intense purple, pale rose red to intense purple-roseTransparent, TranslucentTriclinic0.006
37Triplite5.0 - 5.5Brown, red-brown, dark brown, black (altered), light brownish u=yellow to dark reddish brown in transmitted light.OpaqueMonoclinic0.006
38Purpurite4.0 - 4.5Dark purple to purplish red.OpaqueOrthorhombic0.005
39Carrollite4.5 - 5.5Bright silver colorOpaqueIsometric0.005
40Elpidite5.0Colorless, white, gray, yellowish, orange, brown, beigeTransparent, Translucent, OpaqueOrthorhombic0.005
41Hardystonite3.0 - 4.0light brownish white, pale greyish-white, whitish, very pale pinkishOpaqueTetragonal0.005
42Claringbullite2.5 - 3.0Hexagonal0.005
43Wurtzite3.5 - 4.0Dark reddish-brown to black, orange-brownTranslucentHexagonal0.005
44Antlerite3.5Emerald-green to blackish-green, also light green.TranslucentOrthorhombic0.004
45Kottigite2.5 - 3.0Should be colorless, but frequently is Carmine-red, red-orange, brown, light rose-pink in transmitted light.0.004
46Tyuyamunite1.5 - 2.0Canary yellow, lemon-yellow, greenish yellow (upon exposure to sunlight), colourless to pale yellow in transmitted light.Translucent, OpaqueOrthorhombic0.004
47Marthozite6.0Orthorhombic0.004
48Natrojarosite2.5 - 3.5Yellow, golden brown, red-brownTransparent, TranslucentTrigonal0.004
49Colusite3.0 - 4.0Bronze, pinkish bronzeOpaqueIsometric0.004
50Sapphirine7.5Light blue, blue-gray, green, greenish gray, rarely yellow-brown or pinkTransparentMonoclinic0.004
51Dickite2.0 - 2.5White, or tinted by impuritiesTransparentMonoclinic0.004
52Covellite1.5 - 2.0Indigo-blue or darker, inclining towards blue-black, often iridescent with purplish, deep red, and brassy-yellow reflections.OpaqueHexagonal0.004
53Lollingite5.0 - 5.5Steel gray to silver white0.004
54Nacrite2.0 - 2.5White, grey, yellowish, brownish, etc.Monoclinic0.003
55Magnesioferrite5.5 - 6.5Black, grey in reflected light.OpaqueIsometric0.003
56Tetrawickmanite3.5 - 4.5Honey-yellow, brown-orangeTransparent, TranslucentTetragonal0.003
57Metazeunerite2.0 - 2.5Grass-green, emerald-green, green in transmitted lightTransparent, TranslucentTetragonal0.003
58Breithauptite5.5Copper-red with a violet tintOpaqueHexagonal0.003
59Strengite3.5 - 4.0Purple, violet, pink, peach-blossom-red, carmine, greenish white, colorless, Colourless to pale pink in transmitted light.Transparent, TranslucentOrthorhombic0.003
60Nickelskutterudite5.5 - 6.0Tin white - silver greyOpaqueIsometric0.003
61Greenockite3.0 - 3.5Yellow to red.TranslucentHexagonal0.003
62Pyrochroite2.5 - 3.0Colourless, greenish, bluish (fresh), brown to black (exposed), flesh-red or amethystine in transmitted lightTranslucent, OpaqueTrigonal0.003
63Realgar1.5 - 2.0Dark red to orange-redTransparentMonoclinic0.003
64Sylvite1.5 - 2.0Colourless, grey, white, yellowish to reddish, seldom blue or violetTransparent, TranslucentIsometric0.003
65Danalite5.5 - 6.0Pink, grey, yellow, reddish brown, redTranslucentIsometric0.003
66Uraninite5.0 - 6.0Black, brownish-black, greyish, greenish, green-gray (thin fragments)OpaqueIsometric0.003
67Chondrodite6.0 - 6.5Yellow, Red or Brown.Transparent, TranslucentMonoclinic0.003
68Phosphosiderite3.5 - 4.0Purple to reddish violet, rose-red, peachy-pink, brownish yellow, moss-green, colourless, rose to colourless in transmitted light.Transparent, TranslucentMonoclinic0.003
69Heterogenite3.0 - 5.0Black, reddish, blackish-brownOpaqueHexagonal0.003
70Zincite4.0Red, orange, yellow, white, rarely greenTransparent, Translucent, OpaqueHexagonal0.003
71Bismuth2.0 - 2.5Reddish-white to creamy-white, tarnishes iridescent pinkish, yellowish or bluishOpaqueTrigonal0.003
72Arsenic3.5Tin-white, tarnishing to dark grey or black.OpaqueTrigonal0.003
73Pentlandite3.5 - 4.0Pale bronze-yellow, bronze, brown, reddish brown when argentianOpaqueIsometric0.003
74Rhodonite5.5 - 6.5Red, pink, brownish-red, gray.Transparent, TranslucentTriclinic0.003
75Getchellite1.5 - 2.0Dark blood redTransparentMonoclinic0.003
76Bazzite6.5 - 7.0Deep blue or other shades of blue, blue-green.Transparent, TranslucentHexagonal0.003
77Margarosanite2.5 - 3.0Colorless, grayish-white (due to included native lead)Transparent, TranslucentTriclinic0.003
78Whewellite2.5 - 3.0White, yellow, brown, colourless, colourless in transmitted light.Transparent, TranslucentMonoclinic0.003
79Chamosite3.0Green, grey-green, blackMonoclinic0.003
80Axinite-(Mn)6.5 - 7.0Brown, golden-yellowTransparent, TranslucentTriclinic0.003
81Roselite3.5Rose-red, pink, rose coloured in transmitted light.Transparent, TranslucentMonoclinic0.003
82Minium2.5Red, brownish-red, yellowish tint at times, red in transmitted light.TranslucentTetragonal0.002
83Nosean5.5Colorless, white, gray, gray-brown, blue, blackTransparent, TranslucentIsometric0.002
84Hauyne5.5 - 6.0Blue, white, grey, yellow, green, pink.0.002
85Braunite6.0 - 6.5Brownish black, steel-greyOpaqueTetragonal0.002
86Tantalite-(Mn)6.0Pink to nearly colourless, reddish brown to blackOpaqueOrthorhombic0.002
87Goyazite4.5 - 5.0White, Yellow, honey-yellow, pink, lilac, orange or colourless, colourless in transmitted light.Transparent, TranslucentTrigonal0.002
88Chalcomenite2.0 - 2.5Intense blue, pale blue in transmitted light.TransparentOrthorhombic0.002
89Marshallsussmanite3.0Light pink to deep pink, orange-pink0.002
90Arsenolite1.5White, bluish, reddish to yellowish if impure with realgar or orpiment, colourless in transmitted lightTransparentIsometric0.002
91Lawsonite7.5colorless, white, grayish blue, pale blueTransparent, TranslucentOrthorhombic0.002
92Manganvesuvianite6.0 - 7.0Deep red-brown, red, nearly blackTransparent, Translucent, OpaqueTetragonal0.002
93Erythrite1.5 - 2.5Crimson to peach red, pale rose, pinkTransparent, TranslucentMonoclinic0.002
94Kamphaugite-(Y)2.0 - 3.0White to colorlessTransparentTetragonal0.002
95Magnetite5.5 - 6.5Greyish black or iron blackOpaqueIsometric0.002
96Brannerite4.5 - 5.5Black, brownish olive-green, yellow-brown to yellow with alteration, yellowish green in transmitted lightOpaqueMonoclinic0.002
97Calaverite2.5 - 3.0Brass yellow to silver whiteOpaqueMonoclinic0.002
98Tenorite3.5Grey, blackOpaqueMonoclinic0.002
99Sanidine6.0Colourless, white, grey, yellowish white, or reddish whiteTransparent, TranslucentMonoclinic0.002
100Uvarovite6.5 - 7.0Green, emerald-green, green-blackTransparent, TranslucentIsometric0.002