1 | Margarosanite | 2.5 - 3.0 | Colorless, grayish-white (due to included native lead) | Transparent, Translucent | Triclinic | 0.072 | |
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2 | Meneghinite | 2.5 | Blackish lead-gray | Opaque | Orthorhombic | 0.054 | |
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3 | Scainiite | 3.5 - 4.0 | Black, bluish metallic with dark red tint | Opaque | Monoclinic | 0.042 | |
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4 | Pharmacolite | 2.0 - 2.5 | White or colorless, grayish white, colorless in transmitted light. | Transparent, Translucent | Monoclinic | 0.042 | |
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5 | Margarite | 4.0 | Grayish, pale pink, yellow, green. Colorless in thin section. | Translucent | Monoclinic | 0.036 | |
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6 | Ashcroftine-(Y) | 5.0 | Pink | Transparent | Tetragonal | 0.036 | |
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7 | Dypingite | 2.0 - 3.0 | White | | Monoclinic | 0.028 | |
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8 | Makatite | 5.5 - 6.0 | white | | Monoclinic | 0.026 | |
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9 | Hedyphane | 4.0 - 5.0 | White, yellowish white, buff, bluish, colourless in transmitted light. | | Hexagonal | 0.024 | |
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10 | Tilasite | 5.0 | Light gray, violet-gray, pinkish red (LÄngban), olive-green, apple-green (India), colourless or pale green in transmitted light. | Translucent | Monoclinic | 0.02 | |
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11 | Fluoborite | 3.5 | Colourless, violet or white, colourless in transmitted light | Transparent, Translucent | Hexagonal | 0.019 | |
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12 | Sillimanite | 6.5 - 7.5 | Colorless, white, yellow, brown, green, gray. | Transparent, Translucent | Orthorhombic | 0.018 | |
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13 | Bementite | 6.0 | Brown, dark brown, golden brown, grayish-yellow | Translucent | Monoclinic | 0.016 | |
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14 | Canavesite | 2.0 | | | Monoclinic | 0.016 | |
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15 | Vantasselite | 2.0 - 2.5 | White | | Orthorhombic | 0.015 | |
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16 | Manganberzeliite | 4.5 - 5.0 | Yellow-orange, yellowish red, colorless to orange in transmitted light. | Transparent, Translucent | Isometric | 0.014 | |
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17 | Hardystonite | 3.0 - 4.0 | light brownish white, pale greyish-white, whitish, very pale pinkish | Opaque | Tetragonal | 0.012 | |
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18 | Nakauriite | 5.0 - 5.5 | Translucent blue | | Orthorhombic | 0.012 | |
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19 | Stilpnomelane | 3.0 - 4.0 | Red, brown, black, dark green, dark reddish brown, golden brown | Translucent | Triclinic | 0.011 | |
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20 | Arsenolite | 1.5 | White, bluish, reddish to yellowish if impure with realgar or orpiment, colourless in transmitted light | Transparent | Isometric | 0.01 | |
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21 | Nacrite | 2.0 - 2.5 | White, grey, yellowish, brownish, etc. | | Monoclinic | 0.01 | |
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22 | Ludwigite | 5.0 | Dark-green to black | Opaque | Orthorhombic | 0.009 | |
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23 | Pumpellyite-(Al) | 5.5 | | | | 0.009 | |
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24 | Chloritoid | 6.5 | dark green to green-gray or nearly black. | Translucent | Monoclinic | 0.008 | |
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25 | Breithauptite | 5.5 | Copper-red with a violet tint | Opaque | Hexagonal | 0.008 | |
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26 | Edenite | 5.0 - 6.0 | White, grey, pale to dark green, also brown and pale pinkish-brown | | Monoclinic | 0.007 | |
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27 | Altaite | 2.0 - 3.0 | Tin-white with a light yellow tint, yellow-brown, blue (tarnished) | Opaque | Isometric | 0.007 | |
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28 | Artinite | 2.5 | White, colourless in transmitted light. | Transparent | Monoclinic | 0.007 | |
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29 | Wollastonite | 4.5 - 5.0 | White, gray-white, light green, pinkish, brown, red, yellow | Transparent, Translucent | Triclinic | 0.006 | |
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30 | Gudmundite | 5.5 - 6.0 | | Opaque | Monoclinic | 0.006 | |
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31 | Magnesio-hastingsite | 5.0 - 6.0 | Green to brownish-green | | Monoclinic | 0.006 | |
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32 | Antimony | 3.0 - 3.5 | Tin-white | Opaque | Trigonal | 0.006 | |
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33 | Straczekite | 1.0 - 2.0 | Green-black | | Monoclinic | 0.005 | |
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34 | Kingsmountite | 2.5 | Colorless to white, may have a light tan to pale brown tinge | Transparent, Translucent | Monoclinic | 0.005 | |
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35 | Motukoreaite | 1.0 - 1.5 | colorless, white, yellow | Translucent | Trigonal | 0.005 | |
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36 | Tsaregorodtsevite | 6.0 | Colourless to white | Transparent | Orthorhombic | 0.005 | |
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37 | Kaliophilite | 5.5 - 6.0 | Colorless | Transparent | Hexagonal | 0.004 | |
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38 | Vonsenite | 5.0 | Black, greenish black | Opaque | Orthorhombic | 0.004 | |
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39 | Calaverite | 2.5 - 3.0 | Brass yellow to silver white | Opaque | Monoclinic | 0.004 | |
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40 | Brannerite | 4.5 - 5.5 | Black, brownish olive-green, yellow-brown to yellow with alteration, yellowish green in transmitted light | Opaque | Monoclinic | 0.004 | |
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41 | Lizardite | 2.0 | | | | 0.004 | |
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42 | Triplite | 5.0 - 5.5 | Brown, red-brown, dark brown, black (altered), light brownish u=yellow to dark reddish brown in transmitted light. | Opaque | Monoclinic | 0.004 | |
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43 | Actinolite | 5.0 - 6.0 | Green, green-black, grey-green, or black | Transparent, Translucent | Monoclinic | 0.004 | |
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44 | Zoisite | 6.0 - 7.0 | Colourless, purple, greyish-white, grey, yellowish-brown, yellow, pink, green | Transparent, Translucent | Orthorhombic | 0.004 | |
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45 | Tiemannite | 2.5 | Steel-gray to black | Opaque | Isometric | 0.004 | |
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46 | Triphylite | 4.0 | Brown-green, light green-gray, may appear blue-gray, colourless to pale yellow in transmitted light. | Translucent | Orthorhombic | 0.004 | |
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47 | Nickeline | 5.0 - 5.5 | Pale copper red | Opaque | Hexagonal | 0.004 | |
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48 | Fluoro-richterite | 5.0 - 6.0 | Brown to brownish-red, rose-red, yellow, grey-brown, also pale to dark green. | | Monoclinic | 0.004 | |
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49 | Kovdorskite | 4.0 | Pale rose, pale blue | | Monoclinic | 0.004 | |
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50 | Cobaltkoritnigite | 2.0 - 3.0 | Pale Light purple to intense purple, pale rose red to intense purple-rose | Transparent, Translucent | Triclinic | 0.004 | |
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51 | Messelite | 3.5 | White, pale gray white, creamy white | Transparent, Translucent | Triclinic | 0.004 | |
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52 | Gonnardite | 4.0 - 5.0 | | | Orthorhombic | 0.003 | |
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53 | Thortveitite | 6.0 - 7.0 | Greyish-green, black, grey, blue, yellow, brown | Translucent, Opaque | Monoclinic | 0.003 | |
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54 | Elpidite | 5.0 | Colorless, white, gray, yellowish, orange, brown, beige | Transparent, Translucent, Opaque | Orthorhombic | 0.003 | |
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55 | Rabbittite | 2.5 | Pale green | | Monoclinic | 0.003 | |
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56 | Sincosite | 1.0 - 2.0 | Grass-green, yellow- to olive-green, brownish green, blue-green, light green, olive-green, brownish green, yellowish green, bluish green in transmitted light. | Transparent, Translucent | Tetragonal | 0.003 | |
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57 | Tellurobismuthite | 1.5 - 2.0 | Lead-grey | Opaque | Trigonal | 0.003 | |
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58 | Sengierite | 2.5 | Olive-green, yellowish green | Transparent | Monoclinic | 0.003 | |
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59 | Gustavite | 3.5 | | Opaque | Orthorhombic | 0.003 | |
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60 | Berzelianite | 2.0 | Silver-White, shiny lead-grey, easily tarnishes iridescent blue-grey | Opaque | Isometric | 0.003 | |
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61 | Medaite | 2.5 | Brownish-red | Translucent | Monoclinic | 0.003 | |
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62 | Chromite | 5.5 | Black | Translucent, Opaque | Isometric | 0.003 | |
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63 | Andersonite | 2.5 | Bright green to yellow-green. | Transparent, Translucent | Trigonal | 0.003 | |
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64 | Bityite | 5.5 | White yellowish, colorless, white, brownish | Transparent, Translucent | Monoclinic | 0.003 | |
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65 | Bismuth | 2.0 - 2.5 | Reddish-white to creamy-white, tarnishes iridescent pinkish, yellowish or bluish | Opaque | Trigonal | 0.003 | |
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66 | Vishnevite | 5.0 - 6.0 | colourless, light blue, orange-yellow, white | | Hexagonal | 0.003 | |
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67 | Cerite-(Ce) | 5.5 | | | Trigonal | 0.003 | |
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68 | Normandite | 5.0 - 6.0 | | | Monoclinic | 0.003 | |
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69 | Emplectite | 2.0 | Greyish to tin-white | Opaque | Orthorhombic | 0.002 | |
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70 | Willhendersonite | 3.0 | Colorless, white | Transparent | Triclinic | 0.002 | |
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71 | Antigorite | 3.5 - 4.0 | green, green-blue, white, brown, black | Transparent | Monoclinic | 0.002 | |
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72 | Norbergite | 6.0 - 6.5 | Orange-yellow, yellow, orange to brown. | Transparent, Translucent | Orthorhombic | 0.002 | |
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73 | Nissonite | 2.5 | bluish green | Transparent | Monoclinic | 0.002 | |
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74 | Geocronite | 2.5 - 3.0 | Light lead gray to grayish | Opaque | Monoclinic | 0.002 | |
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75 | Germanite | 4.0 | Pale greyish-pink | Opaque | Isometric | 0.002 | |
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76 | Tacharanite | 5.0 | White | Translucent | Monoclinic | 0.002 | |
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77 | Kermesite | 1.0 - 1.5 | Red | Translucent, Opaque | Triclinic | 0.002 | |
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78 | Cancrinite | 5.0 - 6.0 | grey-green, white, yellow, blue, orange, reddish | Transparent, Translucent | Hexagonal | 0.002 | |
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79 | Tremolite | 5.0 - 6.0 | White, brown, colourless, grey, light green, green, light yellow, pink-violet | Transparent, Translucent | Monoclinic | 0.002 | |
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80 | Aenigmatite | 5.5 - 6.0 | Velvet-black | Translucent, Opaque | Triclinic | 0.002 | |
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81 | Montmorillonite | 1.0 - 2.0 | White, buff, yellow, green, rarely pale pink to red | Translucent | Monoclinic | 0.002 | |
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82 | Owyheeite | 2.5 | Light steel-gray to silver-white, tarnishes yellow | Opaque | Monoclinic | 0.002 | |
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83 | Purpurite | 4.0 - 4.5 | Dark purple to purplish red. | Opaque | Orthorhombic | 0.002 | |
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84 | Aegirine | 6.0 | Dark green to greenish black, reddish brown, black | Transparent, Opaque | Monoclinic | 0.002 | |
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85 | Stibnite | 2.0 | Lead-gray with pale blue tint | Opaque | Orthorhombic | 0.002 | |
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86 | Meionite | 5.0 - 6.0 | Colorless, white, grey, pink, violet, blue, yellow, orange-brown, brown | Transparent, Opaque | Tetragonal | 0.002 | |
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87 | Metaswitzerite | 2.5 | Light golden brown, pale pink, white | Transparent, Translucent | Monoclinic | 0.002 | |
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88 | Callaghanite | 3.0 - 3.5 | Azure-blue | Transparent | Monoclinic | 0.002 | |
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89 | Cosalite | 2.5 - 3.0 | Grey | Opaque | Orthorhombic | 0.002 | |
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90 | Riebeckite | 5.0 - 5.5 | Usually black, also commonly light blue to blue-black, gray-blue, gray, brown | Translucent, Opaque | Monoclinic | 0.002 | |
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91 | Zinkenite | 3.0 - 3.5 | Steel-grey | Opaque | Hexagonal | 0.002 | |
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92 | Brandtite | 3.5 | Colourless, white, pink, colourless in transmitted light. | Transparent, Translucent | Monoclinic | 0.002 | |
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93 | Selenium | 2.0 | Gray to grayish black, reddish gray, red | Opaque | Trigonal | 0.002 | |
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94 | Lithiophilite | 4.0 | Reddish-brown, yellowish brown, golden-yellow, salmon-orange, colourless to light yellow, pink in transmitted light. | Transparent, Translucent | Orthorhombic | 0.002 | |
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95 | Zaratite | 3.5 | Emerald-green, green in transmitted light. | Transparent, Translucent | Isometric | 0.002 | |
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96 | Diopside | 5.5 - 6.5 | light to dark green, blue, brown, colourless, snow white, grey, pale violet | Transparent, Opaque | Monoclinic | 0.002 | |
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97 | Geikielite | 5.0 - 6.0 | black, red, brownish black | Translucent, Opaque | Trigonal | 0.002 | |
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98 | Rammelsbergite | 5.5 - 6.0 | Tin white with faint pinkish hue | Opaque | Orthorhombic | 0.002 | |
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99 | Prismatine | 6.5 - 7.0 | Gray-green | | Orthorhombic | 0.002 | |
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100 | Colusite | 3.0 - 4.0 | Bronze, pinkish bronze | Opaque | Isometric | 0.002 | |
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