Trigonal - Ditrigonal Pyramidal Class (H-M Symbol (3m))
LEGEND: Bold - (Valid Mineral Species) ! - Dana Number Added # - (Grandfathered as Valid} ? - (Discredited or otherwise Invalid Species) * - (Not Approved IMA) See Mouse Pointer Tool Tip on Mineral Name for more Information
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| Mineral | Space Grp |
a | c | Z | Vol (Ang3) | Calc Dens |
Meas Dens |
| Acetamide | R3c | 11.44 | 13.5 | 18 | 1,530.09 | 1.15 | 1.2 |
| Aerinite # | P3c1 | 16.872 | 5.2256 | 1 | 1,288.25 | 2.51 | 2.5 |
| Alloriite ! | P31c | 12.892 | 21.34 | 1 | 3,071.61 | 2.36 | 2.3 |
| Aluminocerite-(Ce) ! | R3c | 10.581 | 37.932 | 6 | 3,677.82 | 4.67 | |
| Ammoniojarosite # | R3m | 7.2 | 17 | 3 | 763.21 | 3.13 | 3.0 |
| Aqualite ! | R3m | 14.078 | 31.24 | 3 | 5,361.96 | 2.61 | |
| Argentojarosite # | R3m | 7.35 | 16.58 | 3 | 775.69 | 3.66 | 3.7 |
| Arsenocrandallite | R3m | 7.08 | 17.27 | 3 | 749.70 | 3.96 | 3.2 |
| Arsenoflorencite-(La) * | R3m | 7 | 16.68 | 3 | 707.82 | 3.97 | 4.1 - 4.2 |
| Arsenoflorencite-(Nd) * | R3m | 7.03 | 16.55 | 3 | 708.34 | 4.30 | 4.1 - 4.2 |
| Asbecasite | P3c | 8.36 | 15.3 | 2 | 926.05 | 3.79 | 3.7 |
| Beaverite # | R3m | 7.203 | 16.94 | 3 | 761.15 | 4.33 | 4.4 |
| Belendorffite | R3m | 13.36 | 16.161 | 12 | 2,498.11 | 13.15 | 13.2 |
| Bobdownsite ! | R3c | 10.3224 | 37.07 | 6 | 3,420.70 | 3.07 | |
| Buergerite ! | R3m | 15.874 | 7.196 | 3 | 1,570.34 | 3.34 | 3.3 |
| Buryatite ! | P31c | 11.14 | 20.99 | 4 | 2,255.87 | 2.15 | |
| Bystrite | P31c | 12.855 | 10.7 | 2 | 1,531.29 | 2.40 | 2.4 |
| Carbokentbrooksite ! | R3m | 14.239 | 30.039 | 3 | 5,274.43 | 2.95 | 3.1 |
| Cerite-(Ce) # | R3c | 10.779 | 38.061 | 6 | 3,829.73 | 5.24 | 4.9 |
| Cerite-(La) ! | R3c | 10.7493 | 38.318 | 6 | 3,834.37 | 4.74 | 4.7 |
| Changbaiite | R3m | 10.499 | 11.553 | 9 | 1,102.86 | 6.63 | 6.5 |
| Charlesite | P31c | 11.16 | 21.21 | 2 | 2,287.70 | 1.79 | 1.8 |
| Chlorartinite ! | R3c (?) | 23.163 | 7.221 | 18 | 3,355.20 | 1.92 | 1.9 |
| Chromdravite ! | R3m | 16.11 | 7.27 | 3 | 1,634.02 | 3.40 | 3.4 |
| Chvilevaite | P3m | 3.873 | 6.848 | 1 | 88.96 | 3.92 | |
| Congolite | R3c | 8.6225 | 21.054 | 6 | 1,355.60 | 3.37 | 3.6 |
| Corkite # | R3m | 7.22 | 16.66 | 3 | 752.11 | 4.42 | 4.3 |
| Cronstedtite # | P31m | 5.486 | 7.095 | 1 | 184.92 | 3.59 | 3.3 |
| Dravite ! | R3m | 15.941 | 7.201 | 3 | 1,584.73 | 3.01 | 3.0 - 3.2 |
| Dualite ! | R3m | 14.153 | 60.72 | 3 | 10,533.2 | 2.82 | 2.8 |
| Dukeite ! | P31c | 15.067 | 15.293 | 2 | 3,006.61 | 7.18 | |
| Dussertite # | R3m | 7.4244 | 17.494 | 3 | 835.11 | 3.98 | 3.8 |
| Elbaite ! | R3m | 15.838 | 7.103 | 3 | 1,543.03 | 2.96 | 2.9 - 3.2 |
| Ellisite | R3m | 12.324 | 9.647 | 7 | 1,268.90 | 7.18 | 7.1 |
| Feklichevite ! | R3m | 14.255 | 30.17 | 3 | 5,309.34 | 2.85 | 2.9 |
| Fencooperite ! | P3m1 | 10.727 | 7.085 | 1 | 706.04 | 4.24 | |
| Ferrokentbrooksite ! | R3m | 14.2277 | 29.987 | 3 | 5,256.94 | 3.06 | 3.1 |
| Ferromerrillite ! | R3c | 10.372 | 37.217 | 6 | 3,467.35 | 3.15 | |
| Feruvite ! | R3m | 16.012 | 7.245 | 3 | 1,608.65 | 3.24 | 3.2 |
| Foitite ! | R3m | 15.967 | 7.126 | 3 | 1,573.34 | 3.27 | 3.2 |
| Galeite # | P3m | 12.197 | 13.955 | 3 | 1,797.90 | 2.59 | 2.6 |
| Gallobeudantite ! | R3m | 7.225 | 17.03 | 3 | 769.88 | 4.65 | 4.6 |
| Georgbarsanovite ! | R3m | 14.274 | 30.02 | 3 | 5,297.04 | 3.10 | 3.0 |
| Giuseppettite | P31c | 12.856 | 42.256 | 1 | 6,048.27 | 2.38 | 2.3 |
| Golyshevite ! | R3m | 14.231 | 29.984 | 3 | 5,258.85 | 2.77 | 2.9 |
| Gratonite # | R3m | 17.701 | 7.792 | 3 | 2,114.34 | 6.23 | 6.2 |
| Grattarolaite ! | R3m | 7.994 | 6.855 | 4 | 379.37 | 5.44 | 4.1 |
| Hatrurite | R3m | 7.15 | 25.56 | 9 | 1,131.63 | 3.02 | 3.0 |
| Holtedahlite | P31m | 11.203 | 4.977 | 1 | 540.96 | 2.93 | 2.9 |
| Hundholmenite-(Y) ! | R3m | 10.675 | 27.02 | 3 | 2,666.56 | 4.71 | |
| Hydrocerussite # | P31m | 5.24 | 23.74 | 3 | 564.51 | 6.84 | 6.8 |
| Hydroniumjarosite | R3m | 7.3559 | 17.009 | 3 | 797.04 | 3.00 | 2.5 - 2.9 |
| Hydroxyuvite ! | R3m | 15.954 | 7.214 | 3 | 1,590.18 | 3.05 | |
| Ikranite ! | R3m | 14.167 | 30.081 | 3 | 5,228.52 | 2.63 | 2.8 |
| IMA2007-041T | R3m | 10.94 | 13.97 | 1,447.98 | |||
| IMA2008-029 | R3c | 15.2171 | 8.9323 | 1,791.26 | |||
| IMA2009-028 | P31c | 12.6678 | 10.3401 | 2 | 1,437.00 | 2.36 | |
| IMA2009-039 | R3m | 14.2418 | 30.1143 | 3 | 5,289.73 | 2.87 | |
| Iquiqueite | P31c | 11.6369 | 30.158 | 3 | 3,536.78 | 2.06 | 2.0 |
| Johnsenite-(Ce) ! | R3m | 14.237 | 30.03 | 3 | 5,271.37 | 3.19 | 3.2 |
| Kalsilite # | P31c | 5.157 | 8.706 | 2 | 200.51 | 2.62 | 2.6 |
| Kentbrooksite ! | R3m | 14.168 | 30.0847 | 3 | 5,229.90 | 3.72 | 3.1 |
| Khomyakovite ! | R3m | 14.2959 | 30.084 | 3 | 5,324.63 | 3.13 | |
| Krivovichevite ! | R3c | 7.742 | 32.082 | 6 | 1,665.32 | 5.22 | |
| Labyrinthite ! | R3m | 14.239 | 60.733 | 3 | 10,663.9 | 2.85 | 2.9 |
| Liddicoatite ! | R3m | 15.875 | 7.126 | 3 | 1,555.26 | 2.94 | 3.0 |
| Lusungite ? | R3m | 7.04 | 16.8 | 3 | 721.08 | 3.99 | 4.1 |
| Magnesiofoitite ! | R3m | 15.884 | 7.178 | 3 | 1,568.39 | 2.98 | |
| Makinenite | R3m | 10.01 | 3.28 | 9 | 284.62 | 7.23 | |
| Manganokhomyakovite ! | R3m | 14.282 | 30.12 | 3 | 5,320.64 | 3.13 | 3.1 |
| Matraite ? | R3m | 3.8 | 9.4 | 3 | 117.55 | 4.13 | |
| Merenskyite | P3m1 | 3.978 | 5.125 | 1 | 70.24 | 9.14 | |
| Merrillite | R3c | 10.362 | 37.106 | 3 | 3,450.34 | 3.10 | |
| Merrillite-(Ca) * | R3c | 10.362 | 37.106 | 3 | 3,450.34 | 3.03 | |
| Merrillite-(Y) * | R3c | 10.362 | 37.106 | 3 | 3,450.34 | 3.29 | |
| Mertieite-II | R3c | 7.601 | 42.904 | 12 | 2,146.69 | 11.25 | 11.3 |
| Mogovidite ! | R3m | 14.232 | 30.21 | 3 | 5,299.24 | 2.88 | 2.9 |
| Natrojarosite # | R3m | 7.18 | 16.3 | 3 | 727.72 | 3.32 | 2.9 - 3.3 |
| Nierite | P31c | 7.74 | 5.61 | 4 | 291.06 | 3.20 | 3.2 |
| Okanoganite-(Y) | R3m | 10.7108 | 27.0398 | 3 | 2,686.45 | 4.93 | 4.3 |
| Olenite ! | R3m | 15.802 | 7.086 | 3 | 1,532.34 | 3.13 | 3.0 |
| Osarizawaite | R3m | 7.05 | 17.25 | 3 | 742.50 | 4.15 | 4.0 |
| Perryite | R3c | 6.64 | 37.982 | 12 | 1,450.26 | 7.56 | |
| Pezzottaite ! | R3c | 15.946 | 27.803 | 18 | 6,122.46 | 3.22 | 3.0 |
| Povondraite ! | R3m | 16.186 | 7.444 | 3 | 1,688.95 | 3.41 | 3.3 |
| Proshchenkoite-(Y) ! | R3m | 10.7527 | 27.4002 | 3 | 2,743.59 | 4.92 | 4.7 |
| Pyrargyrite # | R3c | 11.047 | 8.719 | 6 | 921.48 | 5.86 | 5.8 |
| Raslakite ! | R3m | 14.229 | 30.019 | 3 | 5,263.51 | 2.63 | 3.0 |
| Rastsvetaevite ! | R3m | 14.249 | 60.969 | 3 | 10,720.3 | 2.82 | |
| Rossmanite ! | R3m | 15.77 | 7.085 | 3 | 1,525.93 | 3.02 | 3.0 |
| Satterlyite | P31m | 11.355 | 5.0394 | 6 | 562.71 | 3.68 | 3.7 |
| Schairerite # | P31m | 12.17 | 19.29 | 3 | 2,474.25 | 2.63 | 2.6 |
| Schallerite # | P3m1 ? | 13.4 | 14.28 | 2 | 2,220.59 | 3.45 | 3.4 |
| Schollhornite | R3m ? | 3.32 | 26.6 | 3 | 253.92 | 2.77 | 2.7 |
| Schorl ! | R3m | 15.99 | 7.195 | 3 | 1,593.16 | 3.29 | 3.1 - 3.2 |
| Schorl-(F) ! | R3m | 15.997 | 7.179 | 3 | 1,591.01 | 3.22 | |
| Selenopolybasite ! | P3m1 | 7.595 | 12.0731 | 1 | 603.12 | 6.55 | |
| Shafranovskite | P31c | 14.519 | 21.062 | 6 | 3,845.07 | 2.72 | 2.8 |
| Spangolite # | P31c | 8.254 | 14.354 | 2 | 846.90 | 3.13 | 3.1 |
| Spionkopite | P3m1 ? | 22.962 | 41.429 | 504 | 18,917.1 | 5.35 | 5.1 |