Trigonal - Hexagonal Scalenohedral Class (H-M Symbol (3 2/m))
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 |
| Aerugite # | R3m | 5.951 | 27.568 | 3 | 845.50 | 5.76 | 5.8 - 5.9 |
| Aleksite | P3m1 | 4.2423 | 79.73 | 6 | 1,242.67 | 7.57 | |
| Alluaivite | R3m | 14.046 | 60.6 | 8 | 10,354.0 | 2.78 | 2.8 |
| Amakinite | P3m1 | 6.917 | 14.52 | 12 | 601.63 | 2.76 | 2.9 - 3.0 |
| Ammonioalunite | R3m | 7.013 | 17.885 | 3 | 761.78 | 2.57 | 2.4 |
| Antimony # | R3m | 4.299 | 11.25 | 6 | 180.06 | 6.74 | 6.6 - 6.7 |
| Aphthitalite # | P3m | 5.65 | 7.29 | 1 | 201.54 | 2.64 | 2.7 |
| Arctite | R3m | 7.078 | 41.203 | 6 | 1,787.64 | 2.84 | 3.1 |
| Arsenic # | R3m | 3.768 | 10.574 | 6 | 130.01 | 5.74 | 5.7 |
| Arsenoflorencite-(Ce) | R3m | 7.029 | 16.517 | 3 | 706.72 | 4.15 | 4.1 |
| Arsenogorceixite ! | R3m | 7.1 | 17.39 | 3 | 759.18 | 3.87 | 3.7 |
| Arsenogoyazite | R3m | 7.1 | 17.16 | 3 | 749.14 | 3.40 | 3.3 |
| Arsenowaylandite * | R3m | ||||||
| Baksanite ! | P3m1 | 4.249 | 62.82 | 3 | 982.21 | 8.14 | 8.1 |
| Bararite # | R3m | 5.76 | 4.77 | 1 | 137.05 | 2.16 | 2.2 |
| Bario-olgite ! | P3m1 | 5.549 | 7.032 | 2 | 187.52 | 3.96 | 4.0 |
| Barysilite # | R3c | 9.82 | 38.3 | 6 | 3,198.55 | 6.91 | 6.1 - 6.7 |
| Benauite ! | R3m | 7.28 | 16.85 | 3 | 773.38 | 3.88 | 3.7 |
| Berndtite | P3m1 | 3.639 | 5.868 | 1 | 67.30 | 4.51 | 4.5 |
| Beudantite # | R3m | 7.32 | 17.02 | 3 | 789.79 | 4.49 | 4.1 - 4.3 |
| Bismuth # | R3m | 4.537 | 11.838 | 6 | 211.03 | 9.87 | 9.7 - 9.8 |
| Bobtraillite ! | P3c1 | 19.72 | 9.9788 | 1 | 3,360.65 | 3.12 | |
| Bohdanowiczite | P3m1 | 4.2049 | 19.65 | 3 | 300.89 | 7.86 | 7.9 |
| Brucite # | P3m1 | 3.147 | 4.769 | 1 | 40.90 | 2.37 | 2.4 |
| Butschliite # | R3m | 5.38 | 18.2 | 3 | 456.21 | 2.60 | |
| Calcite # | R3c | 4.989 | 17.062 | 6 | 367.78 | 2.71 | 2.7 |
| Carlosruizite | P3c1 | 9.5901 | 27.56 | 1 | 2,195.11 | 3.36 | 3.4 |
| Caswellsilverite | R3m | 3.55 | 19.5 | 3 | 212.82 | 3.26 | 3.2 |
| Chabazite-K ! | R3m | 13.78 | 14.97 | 6 | 2,461.79 | 2.04 | 2.0 - 2.2 |
| Chabazite-Na ! | R3m | 13.78 | 14.97 | 3 | 2,461.79 | 2.12 | 2.0 - 2.2 |
| Chabazite-Sr ! | R3m | 13.715 | 15.09 | 6 | 2,458.17 | 2.17 | 2.2 |
| Chalcophyllite # | R3m | 10.77 | 57.5 | 3 | 5,776.04 | 2.60 | 2.4 - 2.7 |
| Chloraluminite # | R3c | 11.831 | 11.91 | 6 | 1,443.73 | 1.67 | 1.7 |
| Chlormanganokalite # | R3c | 11.93 | 14.79 | 6 | 1,822.97 | 2.32 | 2.3 |
| Chloromagnesite * | R3m | 3.632 | 17.795 | 3 | 203.29 | 2.33 | 2.3 |
| Clarkeite # | R3m | 3.954 | 17.73 | 3 | 240.06 | 6.61 | 6.4 |
| Coalingite | R3c | 3.12 | 37.4 | 0.5 | 315.29 | 2.26 | 2.3 - 2.4 |
| Colquiriite | P3c | 5.02 | 9.67 | 2 | 211.04 | 2.96 | 2.9 |
| Comblainite | R3m | 6.08 | 45.58 | 3 | 1,459.19 | 2.98 | 3.0 |
| Coquimbite # | P3c | 10.922 | 17.084 | 4 | 1,764.92 | 2.12 | 2.0 - 2.1 |
| Corundum # | R3c | 4.751 | 12.97 | 6 | 253.54 | 4.01 | 4.0 - 4.1 |
| Crandallite # | R3m | 7.005 | 16.192 | 3 | 688.09 | 3.00 | 2.8 - 2.9 |
| Cupropearceite | P3m1 | 7.3218 | 11.8877 | 1 | 551.91 | 5.77 | |
| Cupropolybasite ! | P3m1 | 7.341 | 11.805 | 550.94 | |||
| Delafossite # | R3m | 3.04 | 17.12 | 3 | 137.02 | 5.50 | 5.4 |
| Digenite # | R3m | 3.919 | 48 | 3 | 638.44 | 5.71 | 5.6 |
| Dorallcharite | R3m | 7.3301 | 17.6631 | 3 | 821.90 | 3.74 | 3.8 |
| Eirikite ! | P3m1 | 14.3865 | 4.8733 | 2 | 873.50 | 5.17 | |
| Eskolaite # | R3c | 4.958 | 13.6 | 6 | 289.52 | 5.23 | 5.2 |
| Eudialyte # | R3m | 14.34 | 30.21 | 12 | 5,379.97 | 3.67 | 2.8 - 3.0 |
| Eylettersite | R3m | 6.99 | 16.7 | 3 | 706.65 | 3.39 | 3.4 |
| Ferrihydrite | P31c | 2.96 | 9.4 | 1 | 71.33 | 3.93 | 3.8 |
| Ferronigerite-2N1S # | P3m or P3m1 | 5.72 | 13.86 | 1 | 392.72 | 4.40 | 4.5 |
| Ferronigerite-6N6S ! | R3m | 5.73 | 55.6 | 3 | 1,580.94 | 4.47 | 4.5 |
| Ferrotaaffeite-6N3S | R3m | 5.7 | 41.16 | 6 | 1,158.13 | 4.05 | 4.1 |
| Florencite-(Ce) # | R3m | 6.974 | 16.36 | 3 | 689.09 | 3.71 | 3.5 - 3.7 |
| Florencite-(La) | R3m | 6.987 | 16.248 | 3 | 686.93 | 3.71 | 3.5 |
| Florencite-(Nd) | R3m | 6.992 | 16.454 | 3 | 696.63 | 3.69 | 3.5 |
| Fougerite ! | R3m | 3.125 | 22.5 | 0.375 | 190.29 | 2.54 | |
| Fuenzalidaite | P3c1 | 9.4643 | 27.336 | 1 | 2,120.52 | 3.28 | 3.3 |
| Gaspeite | R3c | 4.621 | 14.93 | 6 | 276.10 | 3.90 | 3.7 |
| Gorceixite # | R3m | 7.0538 | 17.2746 | 3 | 744.36 | 3.42 | 3.3 |
| Goyazite # | R3m | 7.0218 | 16.597 | 3 | 708.69 | 3.24 | 3.2 - 3.3 |
| Graulichite-(Ce) ! | R3m | 7.26 | 16.77 | 3 | 765.49 | 4.43 | 3.9 |
| Grimaldiite | R3m | 2.973 | 13.392 | 3 | 102.51 | 4.13 | 4.1 |
| Haapalaite | R3m ? | 3.64 | 34.02 | 3 | 390.36 | 3.53 | 3.6 |
| Harkerite # | R3m | 18.131 | 33.46 | 6 | 9,525.77 | 3.07 | 3.0 |
| Harrisonite ! | R3m | 6.248 | 26.802 | 3 | 906.11 | 4.03 | 4.0 |
| Hedleyite # | R3m | 4.47 | 119 | 6 | 2,059.17 | 8.93 | 8.9 |
| Hematite # | R3c | 5.0317 | 13.737 | 6 | 301.20 | 5.28 | 5.3 |
| Herbertsmithite ! | R3m | 6.834 | 14.075 | 3 | 569.28 | 3.76 | 3.8 - 4.0 |
| Herschelite ? | R3m | 13.799 | 15.102 | 12 | 2,490.35 | 2.09 | 2.1 - 2.2 |
| Heterogenite-3R # | R3m | 2.849 | 13.13 | 3 | 92.30 | 4.96 | 4.1 - 4.5 |
| Hidalgoite # | R3m | 7.04 | 16.99 | 3 | 729.24 | 4.27 | 4.0 |
| Hilairite | R3m | 10.556 | 15.851 | 6 | 1,529.63 | 2.73 | 2.7 |
| Hinsdalite # | R3m | 6.99 | 16.8 | 3 | 710.88 | 3.86 | 4.7 |
| Honessite | R3m | 3.083 | 26.71 | 0.25 | 219.86 | 1.71 | |
| Hongshiite * | R3m | 10.703 | 13.197 | 48 | 1,309.23 | 15.74 | 15.6 |
| Huanghoite-(Ce) | R3m | 5.072 | 38.46 | 6 | 856.84 | 4.84 | 4.5 - 4.7 |
| Huangite | R3m | 6.983 | 33.517 | 6 | 1,415.40 | 2.78 | |
| Hydrotalcite # | R3m | 6.13 | 46.15 | 3 | 1,501.84 | 2.00 | 2.1 |
| Hydrowoodwardite ! | R3m | 3.07 | 31.9 | 3 | 260.37 | 2.23 | 2.3 |
| Ikunolite | R3m | 4.15 | 39.19 | 3 | 584.52 | 8.24 | 7.8 |
| Ingodite | P3m1 | 4.248 | 23.22 | 6 | 362.88 | 7.27 | |
| Iowaite | R3m | 3.119 | 24.52 | 0.6 | 206.58 | 1.90 | 2.1 |
| Joseite # | R3m | 4.25 | 39.77 | 3 | 622.11 | 8.04 | 8.1 |
| Joseite-B # | R3m | 4.34 | 40.83 | 3 | 666.02 | 7.51 | 8.3 |
| Kalistrontite | R3m | 5.45 | 20.7 | 3 | 532.47 | 3.35 | 3.2 |
| Kapellasite ! | P3m1 | 6.3 | 5.733 | 1 | 197.06 | 3.61 | 3.5 |
| Karelianite | R3c | 4.99 | 13.98 | 6 | 301.47 | 4.95 | 4.9 |
| Kawazulite | R3m | 4.24 | 29.66 | 3 | 461.78 | 7.86 | 7.8 |
| Kazakovite | R3m | 10.18 | 13.06 | 3 | 1,172.11 | 2.75 | 2.8 |
| Kemmlitzite | R3m | 7.072 | 16.51 | 3 | 715.09 | 3.60 | 3.6 |
| Kintoreite | R3m | 7.325 | 16.9 | 3 | 785.29 | 4.24 | 4.2 - 4.3 |
| Kitkaite | P3m1 | 3.716 | 5.126 | 1 | 61.30 | 7.18 | 7.2 |
| Kochkarite | P3m1 | 4.416 | 72.09 | 3 | 1,217.49 | 7.92 | 7.9 |
| Koenenite # | R3m | 34.72 | 32.64 | 33 | 34,075.4 | 1.96 | 2.0 |
| Kosnarite | R3c | 8.687 | 23.877 | 6 | 1,560.45 | 3.23 | 3.2 |
| Laitakarite | R3m | 4.225 | 39.93 | 3 | 617.28 | 8.37 | 8.1 |
| Lawrencite # | R3m | 3.5775 | 17.52 | 3 | 194.19 | 3.27 | 3.2 |