Mineralogy Database

Trigonal - Trapezohedral Class

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Trigonal - Trapezohedral Class (H-M Symbol (3 2))

Axial Diagram, Paper Model and KrystalShaper Form
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
36 Minerals From the H-M Class Trigonal - Trapezohedral
Mineral Space
Grp
a c Z Vol (Ang3) Calc
Dens
Meas
Dens
Abhurite R32 10.018 44.03 21 3,826.85 4.35 4.3
Alarsite ! P3121,P3221 5.031 11.226 3 246.07 3.36 3.3
Antarcticite P321 7.89 3.95 1 212.95 1.71 1.7
Berlinite # P3121,P3221 4.92 10.91 3 228.71 2.66 2.6
Calciohilairite R32 20.87 16.002 24 6,036.01 2.73 2.7
Caresite P3112 or P3212 10.805 22.48 6 2,272.88 2.61 2.6
Charmarite-3T P3112 10.9885 22.63 6 2,366.42 2.49 2.5
Cinnabar # P3121,P3221 4.149 9.495 3 141.55 8.19 8.1
Combeite # P3221,P3121 10.48 13.188 6 1,254.39 2.81 2.8
Franzinite P321 12.91 26.543 1 3,831.19 2.52 2.5
Godovikovite P321 4.75 8.3 1 162.18 2.50 2.5
Heazlewoodite # R32 5.741 7.139 3 203.77 5.87 5.8
Huntite # R32 9.5027 7.8212 3 611.64 2.88 2.7
Ingersonite P3121 7.282 17.604 3 808.43 5.44
Joelbruggerite ! P321 8.4803 5.2334 1 325.94 6.70
Komkovite R32 10.526 15.736 6 1,509.91 3.37 3.3
Malladrite # P321 8.866 5.043 3 343.30 2.73 2.7 - 2.8
Manganarsite P312 ? 11.451 7.252 4 823.52 3.60 3.6
Monohydrocalcite P3112 10.566 7.573 9 732.18 2.41 2.4
Norsethite R32 5.02 16.75 3 365.56 3.84 3.8
Olekminskite P321 8.66 6.08 3 394.88 3.61 3.7
Paralstonite P321 8.692 6.148 3 402.26 3.68 3.6
Pseudorutile P322 14.375 4.615 5 825.88 4.01 3.8
Pyatenkoite-(Y) ! R32 10.696 15.728 3 1,558.29 2.63 2.7
Quartz # P3121,P3221 4.9133 5.4053 3 113.00 2.65 2.6 - 2.7
Quintinite-3T P3112,P3212 10.571 22.71 6 2,197.76 2.21 2.1
Rodolicoite ! R3121 5.048 11.215 3 247.50 3.04 3.1
Sabieite P321 4.822 8.1696 1 164.51 2.68 2.7
Sazykinaite-(Y) R32 10.825 15.809 3 1,604.32 2.67 2.7
Schuetteite P3121 7.07 10.05 3 435.05 8.36 8.2
Selenium # P3121,P3221 4.366 4.954 3 81.78 4.81 4.8
Sergeevite R32 19.01 7.82 3 2,447.38 2.66 2.2 - 2.3
Tellurium # P3121 4.447 5.915 3 101.30 6.27 6.2
Tincalconite # R32 11.1402 21.207 3 2,279.27 1.87 1.9
Ximengite P3121 6.986 6.4753 3 273.68 5.53
Zirconolite-3T P312 7.287 16.886 7 776.52 5.08 4.7