# Mineral Hardness Color Transparency Crystal System Probability See More
1Parisite-(Ce)4.5Brown, brownish-yellow, waxy yellow, gray-yellow, colourless to yellow in transmitted light.Transparent, TranslucentMonoclinic0.073
2Arsenogorceixite4.0White, yellowish white, yellow, greenish yellow, pale blue, colourless.Transparent, TranslucentTrigonal0.073
3Gadolinite-(Y)6.5 - 7.0Black, greenish-black, brownOpaqueMonoclinic0.041
4Ussingite6.0 - 7.0Pale to medium violet, reddish violet, sometimes barely tinted purpleTransparent, TranslucentTriclinic0.036
5Serandite5.0 - 5.5Pale pink, salmon-red, salmon-orange, deep orange, rose-red, brown, colourlessTransparent, TranslucentTriclinic0.024
6Mackayite4.5Pale bottle-green, olive green, brownish green, greenish black, greenish yellow to yellowish green in transmitted light.TransparentTetragonal0.018
7Opal5.5 - 6.5Colourless, white, yellow, red, orange, green, brown, black, blueTransparent, Translucent0.017
8Whitlockite5.0Colourless, grey-white, light pink, light yellow, colourless in transmitted light.Transparent, TranslucentTrigonal0.017
9Topaz8.0Colourless, white, pale blue, light green, yellow, yellowish brown, or redTransparent, TranslucentOrthorhombic0.017
10Talmessite5.0White, colorless, translucent pale green (nickelian), brownish pink (cobaltian)TransparentTriclinic0.011
11Scheelite4.5 - 5.0Tan, golden-yellow, colourless, white, greenish, dark brown, etc., colourless in transmitted lightTransparent, OpaqueTetragonal0.009
12Calcite3.0White, Yellow, Red, Orange, Blue, Green, Brown, Gray etc.Transparent, TranslucentTrigonal0.008
13Genthelvite6.0 - 6.5Colourless, white, yellow, green, pink to red, darkens to brown and black on weatheringTransparent, TranslucentIsometric0.008
14Hingganite-(Y)6.0 - 7.0Monoclinic0.008
15Kupletskite4.0Dark brown to black, brown, yellowTriclinic0.008
16Hydroxylherderite5.0 - 5.5Colorless, gray, brown, pale yellow, greenish white, light blue, purple, colourless in transmitted light.Transparent, TranslucentMonoclinic0.008
17Scorodite3.5 - 4.0Green, blue-green, grey, grayish-green, blue, yellow-brown, nearly colourless, violet, colourless to faintly greenish or greenish brown in transmitted light.TranslucentOrthorhombic0.007
18Milarite6.0Hexagonal0.007
19Bertrandite6.0 - 7.0Colourless, pale yellow.TransparentOrthorhombic0.007
20Andalusite6.5 - 7.5Pink to red brown, occasionally yellow, green, white, gray rarely violetTransparent, TranslucentOrthorhombic0.007
21Cryolite2.5Colourless, white, brown, grey, black, colourless in transmitted light.Transparent, TranslucentMonoclinic0.006
22Anhydrite3.0 - 3.5Colourless, bluish, blue-grey, violet, burgundy-red, white, rose-pink, brownish, reddish, grey, dark grey, colourless in transmitted lightTransparent, TranslucentOrthorhombic0.006
23Quartz7.0Colorless, purple, rose, red, black, yellow, brown, green, blue, orange, etc.Transparent, TranslucentTrigonal0.006
24Rhodochrosite3.5 - 4.0Pink, rose, red, yellowish-grey, brown, white, gray, colourless to pale rose in transmitted light.Transparent, TranslucentTrigonal0.006
25Kamphaugite-(Y)2.0 - 3.0White to colorlessTransparentTetragonal0.006
26Yofortierite2.5Pink to pale violet, brownMonoclinic0.006
27Leifite6.0ColorlessTransparent, TranslucentTrigonal0.006
28Beyerite2.0 - 3.0White to bright yellow, or greyish-green, grey, light yellow to colourless in transmitted light.Orthorhombic0.006
29Petarasite5.0 - 5.5Orange to brown, pink.TranslucentMonoclinic0.006
30Alstonite4.0 - 4.5Colourless to snow white, yellow-gray, pale gray, pale cream, pink to pale rose-redTransparent, TranslucentTriclinic0.006
31Heulandite-Ca3.5 - 4.0White, Colorless, Red, Yellow, Brown, GreenTransparentMonoclinic0.005
32Clinohumite6.0Monoclinic0.005
33Bastnasite-(Ce)4.0 - 4.5Yellow, reddish-brown, colourless to light yellow in transmitted light0.005
34Clausthalite2.5 - 3.0Bluish grey to lead-greyOpaqueIsometric0.005
35Ajoite2.0 - 2.5Bluish greenTranslucentTriclinic0.005
36Polycrase-(Y)5.0 - 6.0BlackOrthorhombic0.005
37Ancylite-(Ce)4.0 - 4.5Light yellow, orange-yellow, yellow-brown, greyTranslucentOrthorhombic0.005
38Titanite5.0 - 5.5Colourless, brown, green, yellow, rose-red or black.Transparent, TranslucentMonoclinic0.005
39Agardite-(Ce)3.0 - 4.0light green, yellowish greenTransparent, TranslucentHexagonal0.005
40Xenotime-(Y)4.0 - 5.0Yellowish brown, reddish, brown, light red, flesh-red, light green, gray, grayish-white, wine-yellowTranslucent, OpaqueTetragonal0.005
41Emplectite2.0Greyish to tin-whiteOpaqueOrthorhombic0.004
42Eosphorite5.0Usually Pale Brown, Golden Brown, also Medium Brown to Dark Brown, occasionally Pink, Rose redTransparent, TranslucentOrthorhombic0.004
43Kutnohorite3.5 - 4.0White, pale rose, pink, light to medium brownTranslucentTrigonal0.004
44Florencite-(Ce)5.0 - 6.00.004
45Thomsenolite2.0Colourless, white, pale lilac, brownish or reddish tinted due to staining, colourless in transmitted light.Transparent, TranslucentMonoclinic0.004
46Orthoclase6.0Colorless to white, Greenish white, Grayish yellow, Pale pinkTransparent, TranslucentMonoclinic0.004
47Allophane3.0White, pale blue to sky-blue, green, brownTransparent, TranslucentAmorphous0.004
48Spessartine6.5 - 7.5Red, reddish orange, yellowish brown, reddish brown, or brownTransparent, TranslucentIsometric0.004
49Epistilbite4.0Colorless, white, pinkish, yellowishTransparent, TranslucentMonoclinic0.004
50Wittichenite2.0 - 3.0Lead grey, bronze, tin-white, steel grey, yellowOpaqueOrthorhombic0.004
51Dussertite3.5Green, yellow-green, bluish green, yellowish green in transmitted light.TranslucentTrigonal0.004
52Corundum9.0Colourless, blue, red, pink, yellow, grey, golden-brownTransparent, Translucent, OpaqueTrigonal0.004
53Petalite6.5Colourless, white, grey, pinkTransparent, TranslucentMonoclinic0.004
54Zircon7.5Colourless, yellow, grey, reddish-brown, green, brown, blackTransparent, Translucent, OpaqueTetragonal0.003
55Friedelite4.0 - 5.0Tan, brown, "beef steak" red-brown, dark brownMonoclinic0.003
56Danalite5.5 - 6.0Pink, grey, yellow, reddish brown, redTranslucentIsometric0.003
57Helvine6.0 - 6.5Golden yellow, brown, red, gray-yellow, yellow-greenTranslucentIsometric0.003
58Boulangerite2.5 - 3.0Lead greyOpaqueMonoclinic0.003
59Witherite3.0 - 3.5Colourless, white, greyish, light yellow, colourless in transmitted light.Transparent, TranslucentOrthorhombic0.003
60Datolite5.0 - 5.5White, greyish, pale green, red, yellow, pink, etc.Transparent, Translucent, OpaqueMonoclinic0.003
61Sellaite5.0 - 5.5Colourless, white, colourless in transmitted light.TransparentTetragonal0.003
62Sylvite1.5 - 2.0Colourless, grey, white, yellowish to reddish, seldom blue or violetTransparent, TranslucentIsometric0.003
63Gold2.5 - 3.0Rich yellow, paling to whitish-yellow with increasing silver, blue & green in transmitted light (only thinnest folia [gold leaf])OpaqueIsometric0.003
64Ulrichite3.0 - 3.5Apple-green, lime-greenTransparent, TranslucentMonoclinic0.003
65Gysinite-(Nd)4.0 - 4.5light pink to reddish pinkTranslucentOrthorhombic0.003
66Fluorapatite5.0Colourless to white when pure, also green, blue, pink, yellow, brown, violet, purple.Transparent, OpaqueHexagonal0.003
67Chabazite-Ca4.0 - 5.0Colourless, white, yellow, pink, redTransparent, TranslucentTriclinic0.003
68Cordierite7.0 - 7.5Grey, blue, blue-violet, greenish, yellowish brown, colourless to very light blue in transmitted light.Transparent, TranslucentOrthorhombic0.003
69Chiavennite3.0Pale orange-yellowMonoclinic0.003
70Zektzerite6.0Colourless, pink (often zoned)Orthorhombic0.003
71Petitjeanite4.5White to pale pink or yellow, also dark brownTriclinic0.003
72Lollingite5.0 - 5.5Steel gray to silver white0.003
73Hubeite5.5Dark brown to light brown in thinner crystals.Triclinic0.003
74Stilbite-Ca3.5 - 4.0White, colourless, red, light yellow, light to dark brown, cream, orange, pinkTransparent, TranslucentMonoclinic0.003
75Sphalerite3.5 - 4.0Yellow, light to dark brown, black, red-brown, colourless, light blue. greenTransparent, TranslucentIsometric0.003
76Geikielite5.0 - 6.0black, red, brownish blackTranslucent, OpaqueTrigonal0.003
77Semseyite2.5Steel-grey to blackOpaqueMonoclinic0.003
78Tinzenite6.5 - 7.0Lemon-yellow, orange, redTriclinic0.003
79Diaspore6.5 - 7.0white, brown, colourless, pale yellow, greyish, greenish grey, lilac, pinkishTransparent, TranslucentOrthorhombic0.003
80Segnitite4.0Greenish to yellowish-brownTransparent, TranslucentTrigonal0.002
81Hureaulite5.0Commonly pink to colorless, also Red, orange, orange-red, reddish brown, yellowish brown, violet-rose, amber, grayTransparent, TranslucentMonoclinic0.002
82Beudantite3.5 - 4.5Black, dark green, brown, dark yellow, red, greenish yellow, brownTransparent, TranslucentTrigonal0.002
83Groutite3.5 - 4.0Black, may be iridescentOpaqueOrthorhombic0.002
84Lipscombite5.0Tetragonal0.002
85Quintinite2.0Yellow to colorless, orange-brownTransparentHexagonal0.002
86Ferrierite-Mg3.0 - 3.5White, colorless, pinkish, orange to redTransparent, TranslucentOrthorhombic0.002
87Colemanite4.5Colourless, white, yellowish, grey, colourless in transitted lightTransparent, TranslucentMonoclinic0.002
88Pezzottaite8.0raspberry red to pink0.002
89Columbite-(Fe)6.0Black to brownish blackOpaqueOrthorhombic0.002
90Tantalite-(Mn)6.0Pink to nearly colourless, reddish brown to blackOpaqueOrthorhombic0.002
91Elbaite7.5Green, red to pink, blue, orange, yellow, colourlessTransparent, TranslucentTrigonal0.002
92Fluorapophyllite-(K)4.5 - 5.0Colourless, pale green, aquamarine, white, pink, yellowTransparent, TranslucentTetragonal0.002
93Chondrodite6.0 - 6.5Yellow, Red or Brown.Transparent, TranslucentMonoclinic0.002
94Hopeite3.5Yellow, white, colourless, grey or brown, colourless in transmitted light.Transparent, TranslucentOrthorhombic0.002
95Marshallsussmanite3.0Light pink to deep pink, orange-pink0.002
96Schorl7.0Bluish-black to black, sometimes brownish-black, rarely greenish-black.Translucent, OpaqueTrigonal0.002
97Hydroxylapatite5.0White, grey, yellow, green, violet, purple, red or brownTransparent, Translucent, OpaqueHexagonal0.002
98Anorthite6.0 - 6.5Colourless, reddish grey, whiteTransparent, TranslucentTriclinic0.002
99Fluorite4.0Purple, lilac, golden-yellow, green, colourless, blue, pink, champagne, brown.TransparentIsometric0.002
100Zunyite7.0Colourless, grey, white, flesh-redTransparent, TranslucentIsometric0.002