Hexagonal Dihexagonal Dipyramidal Class (original) (raw)

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Axial Configuration Paper Model

Hexagonal - Dihexagonal Dipyramidal Class (6/m 2/m 2/m) Mineral Species Listing

System Class Name AXES Planes Center Hermann- Maugin Symbols
2-Fold 3-Fold 4-Fold 6-Fold
Hexagonal Dihexagonal Dipyramidal 6 - - 1 7 yes 6/m 2/m 2/m

Synonyms: Normal Class, Beryl Type, Holohedral, or Dihexagonal Equatorial Class.

Space Groups in class: P6/mcc, P6/mmm, P63/mcm, and P63/mmc

Example of the Hexagonal - dihexagonal dipyramidal class symmetry in stereo using JCrystal Applet by Steffen Weber.
Java Applet Not Started
Example of the Hexagonal - dihexagonal dipyramidal class symmetry in stereo using Faces (version 3.5) by Georges Favreau.
Hexagonal_6m2m2m.gif (4993 bytes)

134 Minerals From the H-M Class Hexagonal - Dihexagonal Dipyramidal (6/m 2/m 2/m)

Mineral Space Grp a c Z Vol (Ang3) Calc Dens
Achavalite P 63/mmc 3.6360 5.9460 2 68.1 6.58
Akhtenskite P 63/mmc 2.8500 4.4800 1 31.5 4.58
Algodonite P 63/mmc 2.6000 4.2280 24.8 9.18
Allargentum P 63/mmc 2.9450 4.7700 2 35.8 10.01
Almarudite P 6/mcc 9.9970 14.0900 2 1219.5 2.72
Astrocyanite-(Ce) P 6/mmm 14.9600 26.8600 12 5206.0 3.64
Atheneite P 6/mmm 6.7980 3.4830 2 139.4 11.07
Barbertonite P 63/mmc 6.1700 15.5200 1 511.7 2.12
Batiferrite P 63/mmc 5.9080 23.3900 2 707.0 5.03
Bazzite P 6/mcc 9.5210 9.1650 2 719.5 2.61
Bentorite P 63/mmc 22.3500 21.4100 8 9262.0 1.85
Berezanskite P 6/mcc 9.9030 14.2740 2 1212.3 2.66
Beryl P 6/mmc 9.2150 9.1920 2 676.0 2.64
Brannockite P 6/mcc 10.0020 14.2630 2 1235.7 2.99
Breithauptite P 63/mmc 3.9300 5.1300 2 68.6 8.73
Brugnatellite P 63/mmc 5.4800 16.0000 1 416.1 2.21
Burbankite P 63/mmc 10.5300 6.4700 2 621.3 3.77
Burnsite P 63/mmc 8.7805 15.5210 2 1036.3 3.85
Buttgenbachite P 63/mmc 15.8200 9.1300 2 1978.9 3.45
Cacoxenite P 6/mmm 27.5590 10.6550 3 7008.3 3.19
Cadmium P 63/mmc 2.9790 5.6170 2 43.2 8.65
Catamarcaite P 63mc 7.5238 12.3900 2 607.4 4.93
Chaoite P 6/mmm 8.9480 14.0780 168 976.2 3.43
Chayesite P 6/mcc 10.1530 14.3880 2 1284.5 2.69
Claringbullite P 63/mmc 6.6733 9.1850 2 354.2 3.83
Cordylite-(Ce) P 63/mmc 5.0930 23.0170 2 517.0 4.08
Covellite P 63/mmc 3.7920 16.3440 6 203.5 4.68
Darapiosite P 6/mcc 10.3200 14.3900 2 1327.2 2.82
Diaoyudaoite P 63/mmc 5.6020 22.6260 2 614.9 3.20
Dmisteinbergite P 6/mmm 5.1220 14.7810 2 335.8 2.75
Drysdallite P 63/mmc 3.2860 12.8990 2 120.6 6.34
Dugganite P 6/mmm 8.4720 5.2080 1 323.7 6.68
Dusmatovite P 6/mcc 10.2180 14.2920 2 1292.3 3.02
Eifelite P 6/mcc 10.1370 14.2230 2 1265.7 2.68
Erionite-Ca P 63/mmc 13.3330 15.0910 1 2323.3 2.08
Erionite-K P 63/mmc 13.2000 15.0750 1 2274.8 2.16
Erionite-Na P 63/mmc 13.2100 15.0480 1 2274.1 2.05
Ettringite P 63/mmc 22.4600 21.4400 8 9366.5 1.78
Fairchildite P 63/mmc 5.2720 13.2800 2 319.7 2.48
Farneseite P 63/m 12.8784 37.0078 1 5315.6 2.52
Fleischerite P 63/mmc 8.8900 10.8600 2 743.3 4.50
Fluocerite-(Ce) P 63/mcm 7.1200 7.2800 6 319.6 6.14
Freboldite P 63/mmc 3.6100 5.2800 2 59.6 7.68
Friedrichbeckeite P 6/mcc 9.9700 14.1300 2 1216.4 2.68
Gmelinite-Ca P 63/mmc 13.8000 9.9640 1 1643.3 2.11
Gmelinite-K P 63/mmc 13.6210 10.2540 1 1647.6 2.05
Gmelinite-Na P 63/mmc 13.7560 10.0480 1 1646.6 2.02
Graphite P 63/mmc 2.4640 6.7360 4 35.4 2.25
Haggertyite P 63/mmc 5.9260 23.3200 2 709.2 4.87
Hauckite P 6/mmm 9.1700 30.2100 1 2200.0 3.01
Hawthorneite P 63/mmc 5.8710 23.0600 2 688.4 5.02
Heterogenite-2H P 63/mmc 2.8550 8.8050 2 62.2 4.91
Hexaferrum P 63/mmc 2.5910 4.1680 2 24.2 11.86
Hexamolybdenum P 63/mmc 2.7506 4.4318 2 29.0 11.90
Hexatestibiopanickelite P 63/mmc 3.9830 5.3390 2 73.4 8.91
Hibonite P 63/mmc 5.5640 21.8920 2 586.9 4.01
Ice P 63/mmc 4.5100 7.3500 4 129.5 0.92
Idaite P 63/mmc 3.9000 16.9500 1 223.3 4.21
IMA2008-009 P 63/m 9.8450 7.3830 2 619.7 3.98
IMA2008-055 P 63/mmc 2.6941 4.2731 2 26.9 8.80
IMA2009-005 P 63/m 9.4437 6.8169 2 526.5 4.39
Imgreite P 63/mmc 3.9370 5.3540 2 71.9 8.61
Indialite P 6/mcc 9.8120 9.3510 2 779.7 2.49
Jaipurite P 63/mmc 3.3670 5.1600 2 50.7 5.97
Kittatinnyite P 63/mmc 6.4980 22.7800 2 833.0 2.63
Kleinite C63/mmc 13.5600 11.1300 18 1772.3 8.01
Klochite P 6/mcc 10.1200 14.2980 2 1268.1 3.11
Klockmannite P 63/mmc 3.9380 17.2500 6 231.7 6.13
Kokchetavite P 6/mmm(?) 5.2700 7.8200 1 188.1 2.46
Kotulskite P 63/mmc 4.1900 5.6700 2 86.2 9.80
Koutekite P 63/mmc 11.5100 14.5400 18 1668.2 8.38
Langisite P 63/mmc 3.5380 5.1270 2 55.6 7.99
Lindqvistite P 63/mmc 5.9510 33.3580 2 1023.1 5.73
Lonsdaleite P 63/mmc 2.5200 4.1200 4 22.7 3.52
Luanheite P 63/mmc 6.6100 10.9800 6 415.5 12.57
Lukechangite-(Ce) P 63/mmc 5.0680 22.8700 2 508.7 3.97
Magnetoplumbite P 63/mmc 5.8730 23.0070 2 687.2 5.71
Manasseite P 63/mmc 6.1200 15.3240 1 497.1 2.02
Mavlyanovite P 63/mcm 6.8971 4.8075 2 198.1 6.02
Mazzite-Mg P 63/mmc 18.3920 7.6460 1 2239.9 2.08
Mazzite-Na P 63/mmc 18.2343 7.6371 1 2199.1 2.18
Merrihueite P 6/mcc 10.1600 14.3200 2 1280.2 2.92
Methane hydrate-H P 6/mmm 12.2600 10.1700 1 1323.8 0.96
Milarite P 6/mcc 10.4100 13.8450 1 1299.4 2.53
Molybdenite P 63/mmc 3.1600 12.3000 2 106.4 5.00
Natrofairchildite P 63/mmc 5.2910 13.2180 2 320.5 2.14
Nezilovite P 63/mmc 5.8540 22.8820 2 679.1 5.84
Nickeline P 63/mmc 3.6090 5.0190 2 56.6 7.84
Niggliite P 63/mmc 4.1110 5.4460 2 79.7 13.07
Oftedalite P 6/mmc 10.0970 13.9910 2 1235.3 2.62
Osmium P 63/mmc 2.7140 4.3140 2 27.5 23.01
Osumilite-(Fe) P 6/mcc 10.1550 14.2840 2 1275.7 2.73
Osumilite-(Mg) P 6/mcc 10.1170 14.2550 2 1263.6 2.67
Penfieldite P 6/mmm 11.2800 48.6500 36 5360.8 6.00
Perhamite P 6/mmm 7.0200 20.2100 1 862.5 2.53
Perlialite P 6/mmm 18.4900 7.5100 1 2223.5 2.26
Plumboferrite P 63/mmc 5.9310 23.5510 2 717.5 6.08
Plumbopalladinite P 63/mmc 4.4700 5.7190 1 99.0 12.31
Poudretteite P 6/mcc 10.2390 13.4850 2 1224.3 2.48
Rhenium P 63/mmc 2.7600 4.4580 2 29.4 21.03
Roedderite P 63/mmc 10.1390 14.2750 2 1270.9 2.70
Rutheniridosmine P 63/mmc 2.7100 4.3000 2 27.4 22.16
Ruthenium P 63/mmc 2.7040 4.3260 2 27.4 16.65
Sacrofanite P 63/mmc ? 12.8650 72.2400 14 10354.5 2.62
Schachnerite P 63/mmc 2.9780 4.8420 1 37.2 13.36
Sederholmite P 63/mmc 3.6500 5.3400 2 61.6 7.42
Shibkovite P 6/mcc 10.5050 14.1850 2 1355.7 2.89
Sjogrenite P 63/mmc 3.1130 15.6100 131.0 2.10
Sobolevskite P 63/mmc 4.2300 5.6900 2 88.2 11.88
Sogdianite P 6/mmm 10.0590 14.0520 2 1231.3 2.83
Sorosite P 63/mmc 4.2170 5.1200 2 78.9 7.71
Stannopalladinite P 63/mmc 4.4000 5.6600 1 94.9 9.18
Stoppaniite P 6/mmc 9.3460 9.2130 1 696.9 2.84
Stumpflite P 63/mmc 4.1750 5.5040 2 83.1 13.54
Stutzite P 6/mmm 13.4900 8.4800 7 1336.4 7.74
Sudburyite P 63/mmc 4.0600 5.5900 2 79.8 9.00
Sugilite P 6/mcc 10.0090 14.0060 2 1215.1 2.85
Titanium P 63/mmc 2.9500 4.6900 2 35.4 4.50
Trattnerite P 6/mcc 10.0500 14.3380 2 1254.2 2.69
Troilite P 63/mmc 3.4520 5.7620 2 59.5 4.91
Tungstenite P 63/mmc 3.1540 12.3620 2 106.5 7.73
Vaterite P 63/mmc 7.1350 16.9800 12 748.6 2.66
Vavrinite P 63/mmc 3.9090 15.6820 2 207.5 7.86
Verplanckite P 6/mmm 16.3980 7.2000 6 1676.7 3.48
Wallkilldellite P 6/mmc 6.5060 23.4900 1 861.1 2.90
Weishanite P 63/mmc 2.9265 4.8178 35.7 10.75
Weissite P 6/mmm 8.4320 21.6900 24 1335.5 7.41
Xifengite P 63/mcm 6.7590 4.7200 2 186.7 6.46
Yagiite P 6/mmc 10.0900 14.2900 1 1259.9 2.62
Yimengite P 63/mmc 5.8750 22.9400 2 685.7 4.06
Yuanjiangite P 63/mmc 4.3160 5.5100 2 88.9 11.79
Zaccagnaite P 63/mmc 3.0725 15.1135 123.6 2.82
Zenzenite P 63/mcm 10.0080 13.6720 4 1185.9 6.84
Zinc P 63/mmc 2.6591 4.9353 2 30.2 7.19

(* - Mineral Name is Not IMA Approved)
(! - New Dana Classification Number Has Been Changed or Added)
(? - IMA Discredited Mineral Species Name