Tetragonal Dipyramidal Class (original) (raw)

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Axial Configuration Paper Model

Tetragonal - Dipyramidal Class (4/m) Mineral Species Listing

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

Synonyms: Scheelite Type, Pyramidal Hemihedral, or Tetragonal Equatorial Class.

Space Groups in class: I4/m, I41/a, P4/m, P4/n, P42/m, and P42/n.

Example of the Tetragonal 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!m.gif (3396 bytes)

60 Minerals From the H-M Class Tetragonal - Dipyramidal (4/m)

Mineral Space Grp a c Z Vol (Ang3) Calc Dens
Ammonioleucite I 41/a 13.2140 13.7130 16 2394.4 2.25
Ankangite I 4/m 10.1390 2.9610 1 304.4 4.38
Arsenuranospathite P 41/n 7.1600 30.3700 1 1556.9 2.54
Ashburtonite I 4/m 14.2340 6.1030 2 1236.5 4.66
Baotite I 41/a 20.0200 6.0060 4 2407.2 4.37
Bariosincosite P 4/n or P 4/nmm 9.0310 12.7550 4 1040.3 3.40
Bellidoite P 41/m 11.5200 11.7400 32 1558.0 7.03
Braggite P 41/m 6.3800 6.5700 8 267.4 9.28
Chantalite I 41/a 4.9520 23.2750 4 570.8 2.96
Fergusonite-(Ce) I 41/a 5.1700 5.3000 2 141.7 6.96
Fergusonite-(Nd) I 41/a 4
Fergusonite-(Y) I 41/a 7.7400 11.3400 8 679.4 4.81
Formanite-(Y) I 41/a 7.7500 11.4100 9 685.3 7.28
Garronite I 41/a 9.8730 10.2880 1 1002.8 2.19
Henrymeyerite I 4/m 10.2190 2.9630 1 309.4 4.21
Jeanbandyite P 41/n 7.6480 7.6480 4 447.4 3.67
Julienite P 41/n 9.2400 5.5700 1 475.6 1.68
Kafehydrocyanite I 41/a 9.3940 33.7200 8 2975.7 1.89
Kahlerite P 41/n 14.3000 21.9700 8 4492.7 3.17
Leucite I 41/a 13.0900 13.7500 16 2356.0 2.46
Lingunite I 4/m 9.2630 2.7060 2 232.2 3.87
Manganvesuvianite P 4/n 15.5720 11.8240 2 2867.2 3.42
Manjiroite I 4/m 9.9160 2.8640 1 281.6 4.36
Mannardite I 41/a 14.3560 5.9110 4 1218.2 4.36
Marialite I 4/m 12.0750 7.5160 2 1095.9 2.56
Meionite P 4/m 12.2600 7.6100 2 1143.8 2.71
Metalodevite P 41/m 7.1600 17.2000 2 881.8 4.01
Metanovacekite P 4/n 7.1600 8.5800 1 439.9 3.59
Metatorbernite P 4/n 6.9690 17.3060 2 840.5 3.70
Metazeunerite P 4/n 7.1000 17.4200 2 878.1 3.88
Mopungite P 41/n 7.9940 7.8590 4 502.2 3.26
Narsarsukite I 4/m 10.7400 7.9000 4 911.3 2.82
Novacekite P 41/n 7.1100 20.0600 2 1014.1 3.47
Novodneprite I 4/2m 11.9540 5.8900 8 841.7 12.92
Paceite I 4/m 11.1550 16.2360 4 2020.3 1.47
Paraniite-(Y) I 41/a 5.1350 33.8820 4 893.4 5.97
Polhemusite P 4/n 8.7100 14.7400 24 1118.2 4.68
Powellite I 41/a 5.2300 11.4400 4 312.9 4.25
Priderite I 4/m 10.1100 2.9640 1 303.0 3.92
Redledgeite I 41/a 14.3200 5.8930 4 1208.4 4.41
Reidite I 41/a 4.7380 10.5060 4 235.9 5.16
Rhodostannite I 41/a 7.2900 10.3100 2 547.9 5.16
Rosenbergite P 4/n 7.7150 3.6480 2 217.1 2.40
Sarcolite I 4/m 12.3430 15.4630 4 2355.8 2.66
Scapolite P 41/n 12.0500 7.5800 2 1100.6 2.65
Scheelite I 41/a 5.2420 11.3720 4 312.5 6.12
Schwertmannite P 4/m 10.6600 6.0400 1 686.4 3.74
Silvialite I 4/m 12.1340 7.5760 2 1115.4 2.80
Stolzite I 41/a 5.4600 12.0500 4 359.2 8.41
Stottite P 41/n 7.5940 7.4880 4 431.8 3.55
Tetrarooseveltite I 41/a 5.0850 11.6900 4 302.3 7.64
Tetrawickmanite P 41/n 7.7870 7.7970 4 472.8 3.87
Toyohaite I 41/a 7.4640 10.8000 2 601.7 4.88
Vernadite I 4/m 9.8660 2.8440 4 276.8 2.60
Vesuvianite P 4/n 15.5040 11.8080 4 2838.3 3.33
Vlodavetsite I 4/m 6.8560 13.3250 2 626.3 2.36
Vysotskite P 41/m 6.3710 6.5400 5 265.5 3.96
Weddellite I 4/m 12.3300 7.3530 8 1117.9 1.95
Wiserite P 4/n 20.1920 3.2810 7 1337.7 3.46
Wulfenite I 41/a 5.4350 12.1100 4 357.7 6.82

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