Mineralogy Database

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
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
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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
Adamite # Pnnm 8.306 8.524 6.043 4 427.85 4.45 4.3 - 4.5
Aeschynite-(Ce) # Pmnb 7.55 10.97 5.42 4 448.90 4.52 5.2
Aeschynite-(Nd) Pmnb ?       4     4.6 - 5.0
Aeschynite-(Y) Pbnm 5.18 10.98 7.41 4 421.45 4.33 4.8 - 5.1
Agrinierite Cmmm 14.04 24.07 14.13 16 4,775.13 5.56 5.6 - 5.7
Aikinite # Pbnm 11.297 11.654 4.061 4 534.65 7.15 6.1 - 6.8
Aksaite Pbca 12.54 24.35 7.484 8 2,285.23 1.97 2.0
Allabogdanite ! Pnma 5.748 3.548 6.661 4 135.84 7.10
Alumotantite Pbcn 4.473 11.308 4.775 4 241.52 7.48
Ancylite-(Ce) # Pmcn 5.03 8.53 7.29 2 312.78 4.06 3.9
Ancylite-(La) ! Pmcn 5.072 8.589 7.276 2 316.97 4.00 3.9
Andalusite # Pnnm 7.79 7.9 5.56 4 342.17 3.15 3.1 - 3.2
Andorite # Pmma 13.01 19.19 4.27 4 1,066.06 5.44 5.4
Andreyivanovite ! Pnma 5.833 3.569 6.658 4 138.61 6.65
Anduoite Pnnm 5.41 6.206 3.01 2 101.06 8.98
Anglesite # Pbnm 8.48 5.398 6.958 4 318.50 6.32 6.3
Anhydrite # Amma 6.991 6.996 6.238 4 305.09 2.96 3.0
Anilite Pnma 7.89 7.84 11.01 4 681.05 5.59 5.7
Anthophyllite # Pnma 18.554 18.026 5.28 5 1,765.92 3.67 2.8 - 3.6
Antimonselite Pbnm 11.213 11.515 3.991 4 515.31 6.19 5.9
Antlerite # Pnam 8.24 11.99 6.03 4 595.75 3.95 3.9
Apophyllite-(NaF) Pnnm 8.875 8.881 15.79 2 1,244.55 2.38 2.3 - 2.4
Aragonite # Pmcn 4.959 7.968 5.741 4 226.85 2.93 2.9
Arcanite # Pmcn 5.76 10.05 7.46 4 431.84 2.68 2.7
Ardennite-(As) # Pnmm 8.72 18.56 5.83 2 943.55 3.65 3.6 - 3.8
Ardennite-(V) ! Pnmm 8.76 5.838 18.56 2 949.17 3.55
Argentopyrite # Pmmn 6.64 11.47 6.45 4 491.24 4.27 4.2
Armalcolite Bbmm 9.77 9.983 3.739 4 364.68 3.79 4.0
Arsenolamprite # Bmab 3.63 4.45 10.96 8 177.04 5.62 5.3 - 5.6
Arsenuranylite # Bmmb 15.4 17.4 13.768 6 3,689.27 4.25 4.2
Ashanite ? Pcan 5.869 4.873 5.216 1 149.18 6.39 6.6
Atacamite # Pmcn 6.84 9.13 6.01 4 375.32 3.78 3.8
Avogadrite # Pnma 8.664 5.48 7.028 4 333.68 2.97 2.6
Azoproite Pbam 9.26 12.25 3.01 4 341.44 3.63 3.6
Balipholite Ccca 13.6 20.24 5.16 4 1,420.36 3.36 3.3
Balyakinite Pmcn 7.6 5.83 12.69 8 562.27 5.65 5.6
Barberiite Pnma 9.0615 5.6727 7.2672 4 373.56 1.86 1.9
Barite # Pbnm 8.878 5.45 7.152 4 346.05 4.48 4.5
Barrerite Amma or Ammm 13.643 18.2 17.842 2 4,430.21 2.01 2.1
Bederite ! Pcab 12.559 12.834 11.714 4 1,888.09 3.47 3.5
Benyacarite Pbca 10.561 20.585 12.516 4 2,720.96 2.34 2.4
Bernalite Pmmn 7.6191 7.6191 7.5534 8 438.48 3.28 3.3
Berthierite # Pnam 11.44 14.12 3.76 4 607.36 4.68 4.0 - 4.6
Betekhtinite # Immm 14.693 22.72 3.861 5 1,288.90 5.95 6.0 - 6.1
Beyerite # Immm 3.7729 3.7742 21.726 2 309.37 7.00 6.6
Bezsmertnovite Pmmn 24.215 4.025 16.245 16 1,583.33 16.83 16.3
Bigcreekite ! Pnma 5.038 9.024 18.321 4 832.93 2.76 2.7
Birchite ! Pnma 10.489 20.901 6.155 4 1,349.36 3.65 3.6
Bismuthinite # Pbnm 11.13 11.27 3.97 4 497.98 6.86 6.8 - 7.2
Bismutocolumbite Pcnn 4.992 11.731 5.677 3 332.45 5.81 7.6
Bismutotantalite # Pcmn 5.633 11.763 4.957 4 328.46 8.82 8.5 - 8.8
Blatterite Pnnm 37.654 12.615 6.2472 2 2,967.45 4.26 4.7
Boehmite # Amam 2.868 12.227 3.7 4 129.75 3.07 3.0 - 3.1
Boggsite Imma 20.236 23.798 12.798 4 6,163.21 1.99 2.0
Bonaccordite Pbam 9.213 12.229 3.001 4 338.11 5.19 5.2
Bornite # Pbca 10.95 21.862 10.95 16 2,621.31 5.09 4.9 - 5.3
Bournonite # Pn21m 8.16 8.7 7.8 2 553.74 2.93 5.7 - 5.9
Bowieite Pnca 8.473 6.002 6.121 4 311.28 7.30
Bracewellite Pbnm 4.492 9.86 2.974 4 131.72 4.29 4.4 - 4.5
Brassite Pbca 7.472 10.891 16.585 8 1,349.65 2.33 2.3
Brenkite Pbcn 7.65 7.55 6.548 4 378.20 3.13 3.1
Brookite # Pcab 5.456 9.182 5.143 8 257.65 4.12 4.1
Brownmillerite Ibmm 5.52 14.44 5.34 4 425.64 3.75 3.8
Buckhornite Pmmm 4.108 12.308 9.331 2 471.79 8.25
Burkeite # Pmmm 21.15 27.63 5.16 12 3,015.37 2.58 2.6
Bursaite ? Bbmm 4.118 13.376 20.508 2 1,129.63 6.40 6.2
Cabriite Pmmm 7.88 7.88 3.94 4 244.65 10.73 10.7
Calciborite # Pccn 8.38 13.81 5 8 578.64 2.89 2.9
Calcioancylite-(Ce) # Pmmm 7.24 8.49 5.02 2 308.57 3.61
Calcioandyrobertsite-2O ! Pnma 19.647 10.087 9.963 4 1,974.46 3.80 3.9
Calciocatapleiite Pbnn 7.378 12.779 10.096 4 951.89 2.73 2.8
Calzirtite Pbca 15.094 15.094 10.043 14 2,288.08 5.14 5.0
Carminite # Cccm 16.591 7.58 12.285 8 1,544.96 5.50 5.0 - 5.2
Carnallite # Pcna 9.56 16.05 22.56 12 3,461.56 1.60 1.6
Carpholite # Ccca 13.86 20.13 5.12 8 1,428.49 3.06 2.9
Cassagnaite ! Cmcm 6.066 8.908 18.995 2 1,026.41 3.22
Catalanoite ! Ibca 11.488 11.647 16.435 8 2,199.02 1.74
Cavansite Pcmn 9.778 13.678 9.601 4 1,284.07 2.33 2.2 - 2.3
Cavoite ! Pnam 10.42 5.28 10.34 4 568.88 3.50
Cechite Pnam 7.607 9.441 6.096 4 437.80 5.99 5.9
Celestine # Pbnm 8.359 5.352 6.866 4 307.17 3.97 3.9 - 4.0
Cerussite # Pmcn 5.195 8.436 6.152 4 269.61 6.58 6.6
Cesbronite Pbcn 8.624 11.878 5.872 2 601.50 4.46 4.4
Cesbronite-x Pbcn 8.624 11.878 5.872 2 601.50 4.46 4.4
Chalcocyanite # Pmnb 6.69 8.39 4.82 4 270.54 3.92 3.7
Chalcostibite # Pnam 6.0211 14.509 3.7992 4 331.90 4.99 4.8 - 5.0
Chegemite ! Pbnm 5.0696 11.3955 23.5571 4 1,360.91 2.88
Chelkarite Pbca 13.69 20.84 8.26 12 2,356.57 2.93
Cherepanovite Pnma 5.7 3.59 6 4 122.78 9.62 9.7
Chesnokovite ! Ibca 11.7119 16.973 11.5652 8 2,299.00 1.60 1.7
Chestermanite Pbam 18.525 12.272 3.0218 8 686.97 3.73 3.7
Chiavennite Pnab 8.729 31.326 4.903 4 1,340.70 2.63 2.6
Chivruaiite ! Cmmm 7.17 22.98 6.94 1 1,143.48 2.30 2.4
Chlorothionite # Pnma 7.73 6.078 16.292 4 765.45 2.68 2.7
Chrysoberyl # Pmnb 5.476 9.404 4.427 4 227.97 3.70 3.5 - 3.8
Clerite ! Pnam 11.47 14.36 3.81 4 627.54 4.52 4.9 - 4.4
Clinobarylite ! Pmn2 11.65 4.922 4.674 2 268.01 4.06 4.0
Cohenite # Pbnm 4.518 5.069 6.736 4 154.27 7.88 7.2 - 7.7
Colimaite Pnma 9.138 10.627 9.131 4 886.71 2.22
Columbite-(Fe) # Pcan 5.746 14.308 5.075 4 417.23 5.37 5.3 - 7.3
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