Tetragonal Ditetragonal Dipyramidal Class

Tetragonal Ditetragonal Dipyramidal Class
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Tetragonal Ditetragonal Dipyramidal Class

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Axial Configuration Paper Model

Tetragonal - Ditetragonal Dipyramidal Class (4/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
Tetragonal Ditetragonal-Dipyramidal 4 - 1 - 5 yes 4/m 2/m 2/m

Synonyms: Normal Class, Zircon Type, Holohedral, or Ditetragonal Equatorial Class.

Space Groups in class: I4/mcm, I4/mmm, I41/acd, I41/amd, P4/mbm, P4/mcc, P4/mmm, P4/mnc, P4/nbm, P4/ncc, P4/nmm, P4/nnc, P42/mbc, P42/mcm, P42/mmc, P42/mnm, P42/nbc, P42/ncm, P42/nmc, and P42/nnm.

Example of the Tetragonal Ditetragonal dipyramidal class symmetry in stereo using JCrystal Applet by Steffen Weber.

Java Applet Not Started
Example of the Tetragonal dipyramidal class symmetry in stereo using Faces (version 3.5) by Georges Favreau.
Tetragonal 4!m2!m2!m.gif (3566 bytes)
 
171 Minerals From the H-M Class Tetragonal - Ditetragonal Dipyramidal (4/m 2/m 2/m)
Mineral Space Grp a c Z Vol (Ang3) Calc Dens
Abernathyite P 4/ncc 7.1700 9.0800 2 466.8 3.70
Abswurmbachite I 41/acd 9.4060 18.5460 8 1640.8 4.98
Aminoffite I 4/mmm 9.8650 9.9300 4 966.4 2.86
Anatase I 41/amd 3.7930 9.5100 4 136.8 3.88
Anyuiite I 4/mcm 7.3900 5.6100 4 306.4 12.33
Apophyllite P 4/mnc 8.9600 15.7800 2 1266.8 2.38
Apophyllite-(KF) P 4/mnc 8.9630 15.8040 2 1269.6 1.99
Apophyllite-(KOH) P 4/mnc 8.9780 15.8300 2 1276.0 1.98
Apuanite P 41/mbc 8.3670 17.9590 4 1257.3 5.23
Arapovite P 4/mcc 7.6506 14.9318 2 874.0 3.41
Argutite P 4/mnm 4.3963 2.8626 2 55.3 6.28
Arsenohauchecornite I 4/mmm 10.2711 10.8070 2 1140.1 6.62
Ashcroftine-(Ce) I 4/mmm 23.9940 17.5120 4 10081.9 2.80
Ashcroftine-(Y) I 4/mmm 23.9940 17.5120 4 10081.9 2.51
Ashoverite I 41/amd 6.8250 33.3600 32 1553.9 3.40
Asisite I 4/mmm 3.8932 22.8030 1 345.6 7.94
Atlasovite P 4/ncc 9.8600 20.5800 4 2000.8 4.20
Autunite I 4/mmm 7.0090 20.7360 2 1018.7 3.22
Babefphite I 41/amd 4.8900 16.7400 4 400.3 4.31
Bambollaite I 41/amd 3.8650 5.6320 1 84.1 4.85
Bandylite P 4/nmm 6.1400 5.5800 2 210.4 2.81
Bartonite I 4/mmm 10.4240 20.6260 4 2241.2 3.33
Behierite I 41/amd 6.2060 5.4720 4 210.8 7.06
Bismoclite P 4/nmm 3.8830 7.3470 2 110.8 7.81
Bismutohauchecornite P 4/mmm 7.3700 5.8800 1 319.4 6.25
Bortnikovite P 4/mmm 6.0000 8.5000   306.0  
Braunite-I I 41/acd 9.3800 18.6700 8 1642.7 4.89
Braunite-II I 41/acd 9.3800 18.6700 8 1642.7 4.89
Bukovite I 4/mmm 3.9660 13.7130 1 215.7 7.48
Bystromite P 41/mnm 4.6800 9.2100 2 201.7 5.99
Calomel I 4/mmm 4.4500 10.8900 2 215.7 7.27
Cameronite P 41/mmc 12.6950 42.1860 16 6798.8 7.15
Caminite I 41/amd 5.2390 12.9880 1 356.5 3.43
Carletonite P 4/mbm 13.1780 16.6950 4 2899.3 2.35
Cassiterite P 4/mnm 4.7380 3.1180 2 70.0 7.15
Cerchiaraite I 4/mmm 14.2150 6.1260 2 1237.9 3.75
Chalcothallite I 4/mmm 3.8270 34.2800 2 502.1 6.73
Chernikovite P 4/nmm 7.0200 9.0430 1 445.6 3.26
Chernovite-(Ce) I 41/amd     4    
Chernovite-(Y) I 41/amd 7.0900 6.3200 4 317.7 4.78
Chiolite P 4/mnc 7.0050 10.3900 2 509.8 3.01
Chlorbartonite I 4/mmm 10.3810 20.6140 2 2221.5 3.67
Chromatite I 41/amd 7.2420 6.2900 4 329.9 3.14
Coccinite P 41/nmc 4.3760 12.4100 1 237.6 3.17
Coffinite I 41/amd 6.9300 6.2500 3 300.2 5.44
Cooperite P 41/mmc 3.4700 6.1000 2 73.5 8.45
Cumengite I 4/mmm 15.1007 24.4940 2 5585.4 4.70
Cuprorivaite P 4/nnc 7.3000 15.1200 4 805.7 3.10
Cuprostibite P 4/nmm 3.9900 6.0900 2 97.0 9.09
Daubreeite P 4/nmm 3.8600 7.4100 2 110.4 7.56
Denningite P 41/nbc 8.8200 13.0400 8 1014.4 5.14
Donathite P 4/nnm 8.3420 8.3050 10 577.9 6.40
Downeyite P 4/mbc 8.3600 5.0700 8 354.3 4.16
Dreyerite I 41/amd 7.3030 6.4580 4 344.4 6.25
Effenbergerite P 4/nnc 7.4420 16.1330 4 893.5 3.52
Ferdisilicite P 4/mmm 2.6900 5.0800 1 36.8 5.06
Ferronickelplatinum P 4/mmm 3.8710 3.6350 1 54.5 15.38
Fluorvesuvianite P 4/nnc 15.5100 11.7790 2 2833.6 3.41
Fullerite pseudo-CUBIC 14.2200 13.5600 4 2742.0 1.75
Gainesite I 41/amd 6.5670 17.1190 2 738.3 2.88
Gillespite P 4/ncc 7.5164 16.0768 4 908.3 3.40
Hafnon I 41/amd 6.5725 5.9632 4 257.6 6.30
Hauchecornite P 4/mmm 7.2900 5.4000 1 287.0 6.58
Hausmannite I 41/amd 5.7600 9.4400 4 313.2 4.85
Henritermierite I 41/acd 12.3900 11.9100 8 1828.3 3.40
Hetaerolite I 41/amd 5.7400 9.1500 4 301.5 5.27
Hiarneite I 41/acd 15.2640 10.0890 8 2350.6 5.18
Holtstamite I 41/acd 12.3370 11.9300 8 1815.8 3.33
Hydrohetaerolite I 41/amd 5.7350 9.0050 2 296.2 5.57
Hydroromarchite P 4/mnc 7.8900 9.0100 2 560.9 2.50
Ilmenorutile P 4/mnm 4.6060 2.9820 2 63.3 5.00
Indium I 4/mmm 3.2500 4.9500 2 52.3 7.29
Iraqite-(La) P 4/mcc 7.6100 14.7700 1 855.4 3.17
Iwakiite P 41/nnm 8.5190 8.5400 8 619.8 4.93
Jalpaite I 41/amd 8.6330 11.7430 8 875.2 6.85
Juanitaite P 41/nnm 9.9610 29.1900 4 2896.3 3.58
Khatyrkite I 4/mcm 6.0700 4.8900 4 180.2 4.35
Kusachiite P 4/ncc 8.5110 5.8230 4 421.8 8.59
Kuzminite I 4/mmm 4.5970 11.0340 2 233.2 7.67
Leadamalgam I 4/mmm 3.5450 4.5250 1 56.9 17.96
Litharge P 4/nmm 3.9760 5.0230 2 79.4 9.33
Macedonite P 4/mmm 3.8890 4.2090 1 63.7 7.91
Mackayite I 41/acd 11.7040 14.8850 16 2039.0 5.32
Mackinawite P 4/nmm 3.6760 5.0320 2 68.0 4.17
Matlockite P 4/nmm 4.1100 7.2460 2 122.4 7.10
Mccrillisite I 41/amd 6.5730 17.2800 2 746.6 3.35
Melanophlogite P 41/nbc 26.7900 13.3950 4 9613.7 2.02
Meta-ankoleite P 4/nmm 6.9930 8.8910 1 434.8 3.50
Meta-autunite P 4/nmm 6.9880 8.4590 1 413.1 3.39
Metakahlerite P 4/mmm 7.1800 8.5800 1 442.3 3.82
Metakirchheimerite P 4/mmm 7.1800 8.5800 1 442.3 3.83
Metauranospinite P 4/nmm 7.1400 17.0000 2 866.7 3.84
Minium P 41/mbc 8.8150 6.5650 4 510.1 8.93
Mitscherlichite P 41/mnm 7.4500 7.8800 2 437.4 2.43
Moschelite I 4/mmm 4.9200 11.6000 2 280.8 7.75
Muirite P 4/mmm 14.0000 5.6250 1 1102.5 3.80
Murunskite I 4/mmm 3.8800 13.1000 1 197.2 3.81
Nabokoite P 4/ncc 9.8400 20.5200 4 1986.9 3.98
Natisite P 4/nmm 6.5000 5.0700 2 214.2 3.13
Natrouranospinite P 4/nmm 7.1200 8.6100 1 436.5 3.62
Neltnerite I 41/acd 9.4640 18.8540 8 1688.7 4.64
Ordonezite P 41/mnm 4.6520 9.2300 2 199.8 6.73
Paramelaconite I 41/amd 5.8370 9.9320 16 338.4 6.25
Parkinsonite I 4/mmm 3.9920 22.5140 1 358.8 7.85
Pertlikite I 41/acd 19.2080 27.2158 8 10041.2 2.56
Philolithite P 41/nnm 12.6270 12.5950 2 2008.2 5.93
Phosgenite P 4/mbm 8.1120 8.8140 4 580.0 6.24
Plattnerite P 4/mnm 3.9200 3.3670 1 51.7 7.68
Potarite P 4/mmm 3.0200 3.7060 1 33.8 15.08
Pretulite I 41/amd 6.5890 5.8060 4 252.1 3.69
Pseudoboleite I 4/mmm 15.2400 30.7400 2 7139.6 5.10
Pyrolusite P 4/mnm 4.3900 2.8600 2 55.1 5.24
Quadratite I 4/amd 5.4990 33.9100 8 1025.4 5.32
Roggianite I 4/mcm 18.3320 9.1640 8 3079.7 2.33
Romarchite P 4/nmm 3.8020 4.8360 2 69.9 6.40
Rorisite P 4/nmm 3.8900 6.8100 2 103.1 2.92
Rutile P 4/mnm 4.5940 2.9580 2 62.4 4.25
Sabatierite P 4/mmm 3.9970 9.8410 1 157.2 7.34
Sabugalite I 4/mmm 6.9600 19.3000 1 934.9 3.15
Saleeite I 4/mmm 7.0100 19.8400 2 974.9 3.18
Schafarzikite P 41/mbc 8.5900 5.9200 4 436.8 5.52
Schiavinatoite I 41/amd 6.2190 5.4870 4 212.2 6.57
Schwartzembergite I 4/mmm 5.6100 12.5400 1 394.7 7.50
Selenojalpaite I 41/amd 8.9390 11.8440 8 946.4 7.64
Sellaite P 41/mnm 4.6600 3.0780 2 66.8 3.10
Selwynite I 41/amd 6.5700 17.1420 2 739.9 3.02
Sherwoodite I 41/amd 28.0600 13.5600 4 10676.7 2.57
Sitinakite P 41/mcm 7.8190 12.0990 2 739.7 2.95
Sodium meta-autunite P 4/nmm 6.9960 8.6400 1 422.9 3.54
Sodium-autunite P 4/nmm 6.9760 8.9900 1 437.5 3.49
Squawcreekite P 4/mnm 4.6673 3.1006 1 67.5 6.44
Steacyite P 4/mcc 7.5800 14.7700 2 848.6 3.23
Stishovite P 4/mnm 4.1790 2.6649 2 46.5 4.29
Struverite P 4/mnm 4.6450 2.9990 2 64.7 6.02
Sugakiite P 41/mnm 10.5660 9.7490 4 1088.4 4.71
Tapiolite P 41/mnm 4.7540 9.2280 2 208.6 7.90
Tapiolite-(Fe) P 41/mnm 4.7500 9.2500 2 208.7 7.96
Tapiolite-(Mn) P 41/mnm 4.7620 9.2720 2 210.3 7.62
Teepleite P 4/nmm 7.2600 4.8500 2 255.6 2.08
Tellurohauchecornite P 4/mmm 14.6400 10.8700 8 2329.8 6.39
Tetra-auricupride P 4/mmm 3.9600 3.6700 2 57.6 15.03
Tetraferroplatinum P 4/mmm 3.8400 3.7200 2 54.9 15.19
Tetrataenite P 4/mmm 2.5330 3.5820 2 23.0 8.28
Thalcusite I 4/mmm 3.8820 13.2500 1 199.7 4.82
Thorikosite I 4/mmm 3.9190 12.8540 1 197.4 7.30
Thorite I 41/amd 7.1170 6.2950 4 318.9 6.75
Thorogummite I 41/amd 7.0680 6.2600 3 312.7 5.12
Tin I 41/amd 5.8310 3.1820 4 108.2 7.29
Torbernite I 4/mmm 7.0600 20.5400 2 1023.8 3.22
Trippkeite P 41/mbc 8.5920 5.5730 4 411.4 4.48
Tripuhyite P 41/mnm 4.6250 3.0590 1 65.4 6.13
Trogerite P 4/mmm 7.1600 8.8000 1 451.1 3.55
Tschernichite P 4/mmm 12.8800 25.0200 8 4150.7 2.11
Tucekite P 4/mmm 7.1740 5.4020 1 278.0 6.14
Tulameenite P 4/mm 3.9020 3.5850 1 54.6 15.50
Tunisite P 4/nmm 11.2200 6.5820 2 828.6 2.50
Turkestanite P 4/mcc 7.5920 14.8240 2 854.4 3.42
Uramarsite P 4/mmm 7.1900 9.1500 1 473.0 3.28
Uramphite P 4/nmm 7.0100 9.0500 2 444.7 3.26
Uranocircite P 4/nnc 7.0100 20.4600 2 1005.4 3.58
Urvantsevite I 4/mmm 3.3628 12.9020 2 145.9 11.92
Varlamoffite P 41/mnm 4.7100 3.1300 1 69.4 3.24
Wakefieldite-(Ce) I 41/amd 7.3540 6.4880 4 350.9 5.34
Wakefieldite-(Y) I 41/amd 7.1050 6.2900 4 317.5 4.26
Wesselsite P 4/ncc 7.3660 15.5740 4 845.0 3.33
Wiluite P 4/nnc 15.7520 11.7170 2 2907.3 3.34
Xenotime-(Y) I 41/amd 6.8900 6.0300 4 286.3 4.27
Xenotime-(Yb) I 41/amd 6.8660 6.0040 2 283.0 3.14
Zavaritskite P 4/nmm 3.7470 6.2260 2 87.4 9.27
Zeunerite P 4/nnc 7.1800 21.0600 2 1085.7 3.25
Zircon I 41/amd 6.6040 5.9790 4 260.8 4.85

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