Orthorhombic - Dipyramidal Class (H-M Symbol (2/m 2/m 2/m))
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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| Mineral | Space Grp |
a | b | c | Z | Vol (Ang3) | Calc Dens |
Meas Dens |
| Phurcalite | Pbca | 17.415 | 16.035 | 13.598 | 8 | 3,797.24 | 4.33 | 4.2 |
| Pinalite | Amam | 11.073 | 13.067 | 5.617 | 4 | 812.73 | 7.82 | |
| Pinchite | Ibam | 11.619 | 6.105 | 11.71 | 4 | 830.64 | 9.10 | 9.5 |
| Plancheite # | Pcnb | 19.043 | 20.129 | 5.269 | 4 | 2,019.69 | 3.85 | 3.6 - 3.8 |
| Plimerite ! | Cmcm | 5.141 | 13.811 | 16.718 | 4 | 1,187.02 | 3.69 | |
| Plumbophyllite | Pbcn | 13.2083 | 9.7832 | 8.6545 | 1,118.33 | |||
| Podlesnoite ! | Cmcm | 12.501 | 5.846 | 9.443 | 4 | 690.10 | 3.65 | 3.6 |
| Poldervaartite | Pbca | 9.398 | 9.139 | 10.535 | 8 | 904.83 | 2.90 | 2.9 |
| Polycrase-(Y) # | Pcan | 5.55 | 14.62 | 5.19 | 4 | 421.12 | 5.88 | 5.0 |
| Potassiccarpholite ! | Ccca | 13.715 | 20.302 | 5.138 | 4 | 1,430.63 | 3.05 | 3.1 |
| Poughite | Pmnb | 9.66 | 14.2 | 7.86 | 4 | 1,078.17 | 3.78 | 3.8 |
| Preobrazhenskite # | Pbcn | 16.3 | 9.14 | 10.15 | 4 | 1,512.17 | 2.57 | 2.5 |
| Prewittite ! | Pnnm | 9.132 | 19.415 | 13.213 | 4 | 2,342.64 | 4.07 | |
| Prismatine ! | Cmcm | 15.938 | 13.673 | 6.693 | 4 | 1,458.54 | 3.44 | 3.3 |
| Protoanthophyllite ! | Pnmn | 9.3553 | 17.9308 | 5.3117 | 2 | 891.03 | 2.99 | |
| Protoferro-anthophyllite ! | Pnmn | 9.382 | 18.39 | 5.343 | 2 | 921.85 | 3.49 | 3.6 |
| Protomangano-ferro-anthophyllite ! | Pnmn | 9.425 | 18.303 | 5.345 | 2 | 922.04 | 3.49 | 3.5 |
| Pseudobrookite # | Bbmm | 9.79 | 9.93 | 3.725 | 4 | 362.12 | 4.37 | 4.4 |
| Pseudocotunnite # | Pnma | 9.82 | 11.8 | 5.77 | 4 | 668.60 | 4.24 | 4.2 |
| Pucherite # | Pnca | 5.38 | 5.052 | 12.003 | 4 | 326.24 | 6.59 | 6.2 |
| Purpurite # | Pmnb | 5.83 | 9.7 | 4.77 | 4 | 269.75 | 3.69 | 3.4 |
| Pyrobelonite # | Pnam | 7.644 | 9.508 | 6.182 | 4 | 449.30 | 5.83 | 5.4 |
| Qitianlingite | Pbcn | 23.706 | 5.723 | 5.045 | 4 | 684.45 | 6.22 | 6.4 |
| Radiobarite * | Unk | 8.878 | 5.45 | 7.152 | 4 | 346.05 | 4.48 | 4.5 |
| Radovanite ! | Pnma | 9.585 | 13.143 | 8.0884 | 4 | 1,018.94 | 3.75 | 3.9 |
| Rammelsbergite # | Pnnm | 4.78 | 5.78 | 3.53 | 2 | 97.53 | 7.10 | 7.1 |
| Ramsdellite # | Pbnm | 4.533 | 9.27 | 2.866 | 4 | 120.43 | 4.79 | 4.4 |
| Rankachite | Pmmn | 8.17 | 42.02 | 5.45 | 2 | 1,871.00 | 4.55 | 4.5 |
| Rankamaite | Pban | 17.19 | 17.7 | 3.933 | 2 | 1,196.67 | 6.04 | 5.5 |
| Rapidcreekite | Pcnb | 15.49 | 19.18 | 6.157 | 8 | 1,829.23 | 2.24 | 2.2 |
| Rasvumite | Cmcm | 9.049 | 11.019 | 5.431 | 4 | 541.53 | 3.03 | 3.1 |
| Reddingite # | Pbna | 9.49 | 10.08 | 8.7 | 4 | 832.23 | 3.26 | 3.1 |
| Reinerite | Pbam | 6.092 | 14.407 | 7.811 | 4 | 685.55 | 4.28 | 4.3 |
| Renardite # | Bmmb | 15.88 | 17.24 | 13.76 | 6 | 3,767.09 | 4.42 | 4.3 |
| Retzian-(Ce) # | Pban | 5.67 | 12.03 | 4.863 | 2 | 331.71 | 4.57 | 4.2 |
| Retzian-(La) | Pban | 5.67 | 12.01 | 4.869 | 2 | 331.56 | 4.42 | 4.5 |
| Retzian-(Nd) | Pban | 5.726 | 12.12 | 4.879 | 2 | 338.60 | 4.50 | 4.4 |
| Rhodesite # | Pmam | 23.416 | 6.555 | 7.05 | 2 | 1,082.12 | 2.25 | 2.4 |
| Rhomboclase # | Pnma | 9.723 | 18.295 | 5.424 | 4 | 964.83 | 2.21 | 2.2 |
| Ribbeite | Pnma | 10.732 | 15.672 | 4.811 | 4 | 809.17 | 3.73 | 3.9 |
| Rockbridgeite # | Bbmm | 13.783 | 16.805 | 5.172 | 4 | 1,197.96 | 3.60 | 3.3 - 3.5 |
| Rohaite | Pmmm ? | 7.602 | 3.801 | 20.986 | 4 | 606.39 | 7.75 | 7.8 |
| Rollandite ! | Pnma | 5.6906 | 17.061 | 9.732 | 4 | 944.85 | 3.82 | 3.9 |
| Roshchinite | Pmna | 12.946 | 19.048 | 16.932 | 1 | 4,175.35 | 5.13 | 5.3 |
| Rostite | Pcba | 11.175 | 13.043 | 10.878 | 8 | 1,585.53 | 1.93 | 1.9 |
| Roweite # | Pbam | 9.057 | 13.357 | 8.289 | 4 | 1,002.76 | 2.96 | 2.9 |
| Ruthenarsenite | Pnma | 5.628 | 3.239 | 6.184 | 4 | 112.73 | 9.74 | 10.0 |
| Rutherfordine # | Pmmm | 4.845 | 9.205 | 4.296 | 2 | 191.59 | 5.72 | 5.7 |
| Rynersonite | Pmnb | 7.505 | 11.063 | 5.37 | 4 | 445.86 | 6.76 | 6.4 |
| Safflorite # | Pnnm | 5.173 | 5.954 | 2.999 | 2 | 92.37 | 7.48 | 6.9 - 7.3 |
| Salesite # | Pnma | 10.773 | 6.696 | 4.78 | 4 | 344.81 | 4.92 | 4.8 |
| Samarskite-(Y) # | Pbcn | 5.498 | 14.34 | 5.12 | 4 | 403.67 | 4.93 | 5.6 - 5.8 |
| Sampleite # | pseudo TET | 9.7 | 38.4 | 9.65 | 8 | 3,594.43 | 3.24 | 3.2 |
| Sanbornite # | Pmnb | 4.63 | 7.69 | 13.53 | 4 | 481.73 | 3.77 | 3.7 |
| Sazhinite-(La) ! | Pmm2 | 7.415 | 15.515 | 7.164 | 2 | 824.17 | 2.63 | |
| Schertelite # | Pbca | 11.47 | 23.63 | 8.62 | 8 | 2,336.33 | 1.84 | 1.8 |
| Schieffelinite | Cmcm | 9.67 | 19.56 | 10.47 | 16 | 1,980.35 | 5.27 | 5.0 |
| Schirmerite # | Bbmm | 13.45 | 44.4 | 4.02 | 4 | 2,400.66 | 8.26 | 6.7 |
| Schlegelite ! | Pnca | 5.299 | 16.133 | 23.948 | 4 | 2,047.28 | 7.23 | |
| Schmitterite | Pmab | 7.86 | 10.089 | 5.368 | 4 | 425.68 | 6.95 | 6.9 |
| Scholzite # | Pbmm | 17.14 | 22.19 | 6.61 | 12 | 2,514.03 | 3.15 | 3.1 |
| Schoonerite | Pmab | 11.119 | 25.546 | 6.437 | 4 | 1,828.40 | 2.79 | 2.9 |
| Schrockingerite # | Cmmm | 9.69 | 16.83 | 14.26 | 4 | 2,325.56 | 2.54 | 2.5 |
| Scorodite # | Pcab | 10.36 | 10.05 | 8.98 | 8 | 934.98 | 3.28 | 3.1 - 3.3 |
| Scrutinyite | Pbcn | 4.971 | 5.956 | 5.438 | 4 | 161.00 | 9.87 | |
| Seamanite # | Pbnm | 7.811 | 15.114 | 6.691 | 4 | 789.91 | 3.13 | 3.1 |
| Segelerite | Pcca | 14.826 | 18.751 | 7.307 | 8 | 2,031.36 | 2.61 | 2.7 |
| Seinajokite | Pnnm | 3.19 | 5.81 | 6.49 | 2 | 120.29 | 7.64 | |
| Sekaninaite | Cccm | 17.186 | 9.827 | 9.298 | 4 | 1,570.31 | 2.67 | 2.8 |
| Seligmannite # | Pmmn | 8.08 | 8.75 | 7.65 | 4 | 540.85 | 5.43 | 5.4 |
| Semenovite | Pmmn | 13.879 | 13.835 | 9.942 | 2 | 1,909.02 | 3.26 | 3.1 |
| Sepiolite # | Pnan | 13.43 | 26.88 | 5.281 | 4 | 1,906.43 | 2.14 | 2.0 |
| Sewardite ! | Cccm | 16.461 | 7.434 | 12.131 | 8 | 1,484.48 | 4.16 | |
| Shattuckite # | Pcab | 9.876 | 19.812 | 5.381 | 4 | 1,052.86 | 4.14 | 3.8 |
| Shcherbakovite # | Imma | 8.1538 | 10.5569 | 13.9882 | 4 | 1,204.09 | 3.13 | 3.3 |
| Shcherbinaite | Pmmn | 11.51 | 3.559 | 4.371 | 2 | 179.05 | 3.37 | 3.2 - 3.4 |
| Sicherite ! | Pmnb | 12.479 | 15.522 | 5.719 | 4 | 1,107.76 | 5.27 | |
| Sicklerite # | Pmnb | 5.9468 | 10.0631 | 4.7935 | 4 | 286.86 | 3.64 | 3.4 - 3.5 |
| Sideronatrite # | Pbnm | 7.27 | 20.5 | 7.15 | 4 | 1,065.60 | 2.28 | 2.0 - 2.5 |
| Sillimanite # | Pnma | 7.484 | 7.672 | 5.77 | 4 | 331.30 | 3.25 | 3.2 |
| Simonellite # | Pnaa | 9.231 | 9.134 | 36.01 | 8 | 3,036.22 | 1.10 | 1.1 |
| Sinhalite # | Pbmm | 4.328 | 9.868 | 5.676 | 4 | 242.41 | 3.45 | 3.5 |
| Soddyite # | Fddd | 8.32 | 11.21 | 18.71 | 8 | 1,745.03 | 5.09 | 4.6 |
| Sodicanthophyllite | Pnma | 18.5 | 17.9 | 5.3 | 4 | 1,755.09 | 3.04 | |
| Sodic-ferro-anthophyllite ! | Pnma | 18.5 | 17.9 | 5.3 | 4 | 1,755.09 | 3.88 | |
| Sodic-ferrogedrite ! | Pnma | |||||||
| Sodicgedrite | Pnma | |||||||
| Sophiite | Pccn | 10.251 | 15.223 | 7.666 | 8 | 1,196.29 | 3.65 | |
| Sosedkoite | Pban | 17.25 | 17.73 | 3.95 | 1 | 1,208.08 | 6.91 | 6.9 |
| Spodiosite ? | Pbcm | 6.185 | 6.983 | 10.816 | 4 | 467.14 | 2.76 | 2.9 |
| Srebrodolskite | Pnma | 5.42 | 14.752 | 5.594 | 4 | 447.27 | 4.04 | 4.0 |
| Srilankite | Pbcn | 4.708 | 5.553 | 5.019 | 4 | 131.21 | 4.59 | 4.8 |
| Stellerite # | Fmmm | 13.599 | 18.222 | 17.683 | 8 | 4,381.86 | 2.14 | 2.1 |
| Sternbergite # | Cmma | 6.625 | 11.558 | 12.75 | 8 | 976.29 | 4.30 | 4.2 |
| Sterryite | Pbam | 28.48 | 42.62 | 4.09 | 4 | 4,964.51 | 6.07 | 6.0 |
| Stibnite # | Pbnm | 11.229 | 11.31 | 3.893 | 4 | 494.41 | 4.56 | 4.6 |
| Stokesite # | Pnna | 14.41 | 11.61 | 5.23 | 4 | 874.98 | 3.21 | 3.2 |
| Strakhovite | Pnma | 23.42 | 12.266 | 7.181 | 4 | 2,062.88 | 3.79 | 3.9 |
| Strengite # | Pcab | 10.122 | 9.886 | 8.7233 | 8 | 872.91 | 2.84 | 2.9 |
| Stromeyerite # | Cmcm | 4.06 | 6.66 | 7.99 | 4 | 216.05 | 6.26 | 6.0 - 6.3 |