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Orthorhombic - Dipyramidal Class

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Orthorhombic - Dipyramidal Class (H-M Symbol (2/m 2/m 2/m))

Axial Diagram, Paper Model and KrystalShaper Form
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578 Minerals From the H-M Class Orthorhombic - Dipyramidal
Mineral Space
Grp		 a b c Z Vol (Ang3) Calc
Dens		 Meas
Dens
Columbite-(Mn) # Pcan 5.767 14.434 5.085 4 423.28 6.20 5.3
Compreignacite Pnmn 7.16 12.14 14.88 2 1,293.41 5.16 5.0
Coparsite ! Pbcm 5.44 11.154 10.333 4 626.98 4.73
Cordierite # Cccm 17.13 9.8 9.35 4 1,569.62 2.48 2.5 - 2.8
Cornetite # Pbca 10.88 14.1 7.11 8 1,090.73 4.10 4.1
Cosalite # Pbnm 19.09 23.89 4.058 8 1,850.69 7.13 6.4 - 6.8
Cotunnite # Pnam 7.6222 9.0448 4.5348 4 312.63 5.91 5.3 - 5.8
Coutinhoite ! Cmmb 14.1676 14.1935 35.754 8 7,189.69 3.91
Creaseyite Pmmm 12.483 21.375 7.283 4 1,943.28 3.99 4.1
Cubanite # Pcmn 6.46 11.11 6.233 4 447.35 4.03 4.7
Curienite Pcan 10.4 8.45 16.34 4 1,435.96 4.94 4.9
Curite # Pnam 12.58 13.03 8.4 2 1,376.91 7.25 7.2
Cyanophyllite Pmmb 11.82 10.8 9.64 2 1,230.60 3.27 3.1
Danburite # Pnam 8.048 8.763 7.731 4 545.23 3.00 3.0
Dawsonite # Imam 6.73 10.36 5.575 4 388.70 2.46 2.4
Defernite Pnam 17.82 22.76 3.629 4 1,471.86 2.35 2.5
Delhayelite Pnmm 13.06 24.65 7.04 1 2,266.38 2.37 2.6
Demicheleite-(Br) ! Pnam 8.0424 9.8511 4.0328 4 319.50 6.37
Demicheleite-(Cl) ! Pnam 7.802 9.93 3.99   309.12  
Descloizite # Pnam 7.607 9.446 6.074 4 436.45 6.16 6.1 - 6.2
Dewindtite # Bmmb 16.031 17.264 13.605 4 3,765.31 5.12 5.0
Diaspore # Pbnm 4.397 9.421 2.8439 4 117.81 3.38 3.3 - 3.5
Dimorphite # Pnma 11.24 9.9 6.56 4 729.97 3.60 3.6
Direnzoite ! Pmmn 7.5789 18.201 26.1539 1 3,607.76 2.12 2.1
Donpeacorite Pbca 18.384 8.878 5.226 8 852.95 3.48 3.4
Dovyrenite ! Pnnm 5.666 18.844 3.728 1 398.04 3.04
Dresserite Pbmm 9.27 16.83 5.63 4 878.36 3.00 3.0
Dumortierite # Pcmn 11.76 20.18 4.72 4 1,120.14 3.38 3.3 - 3.4
Dundasite # Pbmm 9.05 16.35 5.61 4 830.10 3.74 3.4 - 3.5
Eclarite Pnma 54.76 4.03 22.75 4 5,020.53 7.05 6.8
Emeleusite Pnna 10.073 17.35 14.01 4 2,448.48 2.81 2.8
Emplectite # Pnam 6.1413 14.524 3.9191 4 349.57 6.40 6.3 - 6.5
Empressite # Pmnb 8.882 20.1 4.614 16 823.73 7.59 7.5 - 7.6
Enstatite # Pbca 18.228 8.805 5.185 8 832.18 3.20 3.1 - 3.3
Eosphorite # Bbam 10.436 13.495 6.923 8 974.99 3.12 3.1
Epididymite # Pnam 12.66 7.34 13.48 8 1,252.62 2.60 2.5
Ercitite ! Cmca 6.2499 8.7479 19.9554 8 1,091.03 2.75
Eriochalcite # Pbmn 7.38 8.04 3.72 2 220.73 2.56 2.5
Erythrosiderite # Pnma 13.75 9.924 6.93 4 945.63 2.31 2.4
Eucairite # Pmmn 4.105 4.07 6.31 2 105.42 7.89 7.6 - 7.8
Euxenite-(Y) # Pcan 5.52 14.57 5.166 3 415.48 4.70 4.7 - 5.0
Eveite Pnnm 8.57 8.77 6.27 4 471.25 3.75 3.8
Evenkite # Pbcm 7.47 4.98 65.85 4 2,449.66 .92 .9
Falcondoite Pncn 13.5 26.9 5.24 4 1,902.91 2.62 2.5
Fangite Pnma 8.894 10.855 9.079 4 876.53 6.19 6.2
Fayalite # Pbnm 4.76 10.2 5.98 4 290.34 4.66 4.4
Fedorovskite Pbam 8.96 13.15 8.15 4 960.27 2.78 2.7
Ferrierite-K ! Pnnm 18.973 14.14 7.478 1 2,006.18 2.16 2.1 - 2.2
Ferrierite-Mg # Pnnm 19.213 14.145 7.499 1 2,037.99 2.13 2.1 - 2.2
Ferrisicklerite # Pmnb 5.916 10.026 4.7956 4 284.45 3.68 3.4
Ferro-anthophyllite # Pnma       4    
Ferrocarpholite # Ccca 13.797 20.2 5.116 8 1,425.83 3.02 3.0
Ferrogedrite Pnma 18.51 17.94 5.315 4 1,764.95 3.54 3.6
Ferroholmquistite Pnma 18.3 17.7 5.3 4 1,716.72 3.13
Ferronordite-(Ce) ! Pcca 14.46 5.187 19.848 4 1,488.68 3.54 3.5
Ferronordite-(La) ! Pcca 14.44 5.191 19.86 4 1,488.67 3.57 3.5
Ferroselite # Pnnm 4.8001 5.776 3.585 2 99.40 7.14 7.2
Ferrosilite # Pbca 18.418 9.078 5.237 8 875.62 3.52 3.9 - 4.0
Ferruccite # Cmcm 6.82 6.25 6.77 4 288.57 2.53 2.5
Fersmite # Pcan 5.718 14.91 5.221 2 445.12 2.92 4.7 - 4.8
Filipstadite pseudo ISO 36.7 36.7 25.9 216 34,884.4 4.89
Flinkite # Pnma 9.55 13.11 5.35 4 669.82 3.69 3.8
Florenskyite ! Pnma 6.007 3.602 6.897 4 149.23 5.97
Fluellite # Fddd 8.546 11.222 21.158 8 2,029.12 2.16 2.2
Forsterite # Pbnm 4.756 10.195 5.981 4 290.00 3.22 3.2 - 3.3
Francevillite Pcan 10.41 8.51 16.76 4 1,484.75 4.38 4.6
Francisite Pmmn 6.354 9.63 7.22 2 441.78 5.42
Fredrikssonite Pbam 9.18 12.555 2.954 4 340.46 3.80 3.8
Fritzscheite # Pnam 10.59 8.25 15.54 4 1,357.69 4.89 4.4
Frohbergite # Pnnm 5.28 6.26 3.85 2 127.25 8.12 8.1
Frondelite # Bbmm 13.81 16.968 5.182 4 1,214.29 3.55 3.5
Galenobismutite # Pnam 11.65 14.49 4.08 4 688.74 7.27 6.9 - 7.1
Garavellite Pnam 11.439 14.093 3.754 4 605.18 5.65 5.6
Garyansellite Pbna 9.452 9.89 8.198 4 766.35 2.86 3.2
Gedrite # Pnma 18.594 17.89 5.304 4 1,764.36 2.95 3.2 - 3.6
Gerstmannite Bbam 8.185 18.65 6.25 8 954.06 3.56 3.7
Gladite # Pnma 11.486 4.003 33.531 4 1,541.70 6.91 7.0
Glaucochroite # Pbnm 4.92 11.14 6.5 4 356.26 3.49 3.4
Glaucodot # Cmmm 6.63 28.33 5.63 24 1,057.47 6.22 5.9 - 6.0
Goethite # Pbnm 4.596 9.957 3.021 4 138.25 4.27 3.3 - 4.3
Gottardiite ! Cmca 13.698 25.213 22.66 1 7,826.03 2.16 2.1
Graemite Pcmm 6.805 25.613 5.78 10 1,007.43 4.24 4.1
Grandidierite # Pbnm 10.34 10.98 5.76 4 653.95 3.01 3.0
Gravegliaite Pnma 9.763 5.635 9.558 4 525.83 2.94 2.4
Grischunite Pcab 12.855 13.487 12.047 4 2,088.65 4.14 3.8
Groutite # Pbnm 4.56 10.7 2.85 4 139.06 4.20 4.1
Guanajuatite # Pbnm 11.32 11.48 4.17 4 541.91 8.03 6.2 - 7.0
Gustavite Bbmm 13.51 19.449 4.105 4 1,078.61 6.99 7.0
Guyanaite Pnnm 4.857 4.295 2.958 2 61.71 4.57 4.5
Gwihabaite ! Pbnm 7.075 7.647 5.779 4 312.66 1.81 1.8
Gysinite-(Nd) Pmcn 5.04 8.5 7.25 2 310.59 5.40 4.8
Haidingerite # Pcnb 6.94 16.15 7.94 8 889.92 2.70 3.0
Haiweeite Cmcm 7.125 17.937 18.342 4 2,344.13 2.84 2.9 - 3.3
Hambergite # Pbca 9.76 12.23 4.43 8 528.79 2.36 2.4
Hammarite # Pbnm 33.45 11.58 3.991 4 1,545.92 7.16 6.7
Hanawaltite Pbma 11.79 13.881 6.45 4 1,055.59 9.52 9.5
Hannebachite Pbna 6.473 9.782 10.646 4 674.09 2.54 2.5
Harstigite # Pcmn 13.9 13.62 9.68 4 1,832.60 3.21 3.2
Hashemite Pnma 9.1028 5.5276 7.3314 4 368.89 4.47 4.6
Hastite ? Pnnm 3.6 4.84 5.72 2 99.67 7.23 7.2
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