Name Formula ρlog g/cc φsnp p.u. φcnl p.u. Δtc μs/ft Δts μs/ft Pe barn/elect U barn/cc ε farads/m tp nsec/m GR APR units Σ c.u.
SILICATES
Quartz SiO2 2.64 1. 2. 56.0 88.0 1.81 4.79 4.65 7.2 — 4.26
β -Cristobalite SiO2 2.15 2. 3.     1.81 3.89     — 3.52
Opal (3.5% H2 O) SiO2 (H2 O)1209 2.13 4. 2. 58.   1.75 3.72     — 5.03
Garnet Fe3 AI2 (SiO4 )3 4.31 3. 7.     11.09 47.80     — 44.91
Hornblende Ca2 NaMg2 Fe2 AISi8 O22 (O,OH)2 3.20 4. 8. 43.8 81.5 5.99 19.17     — 18.12
Tourmaline NaMg3 AI6 B3 Si6 O2 (OH)4 3.02 16. 22.     2.14 6.46     — 7449.82
Zircon ZrSiO4 4.50 –1. 3.     69.10 311.     — 692
CARBONATES
Calcite CaCO3 2.71 0 –1. 49.0 88.4 5.08 13.77 7.5 9.1 — 7.08
Dolomite CaCO3 MgCO3 2.85 2. 1. 44.0 72. 3.14 9.00 6.8 8.7 — 4.70
Ankerite Ca(Mg,Fe)(CO3 )2 2.86 0 1.     9.32 26.65     — 22.18
Siderite FeCO3 3.89 5. 12. 47   14.69 57.14 6.8 – 7.5 88 91 — 52.31
OXIDATES
Hematite Fe2 O3 5.18 4. 11. 42.9 79.3 21.48 111.27     — 101.37
Magnetite Fe3 O4 5.08 3. 9. 73.   22.24 112.98     — 103 08
Geothite FeO(OH) 4.34 50 + 60 +     19.02 82.55     — 85 37
Limonite FeO(OH)(H2 O)2 05 3.59 50 + 60 + 56.9 102.6 13.00 46.67 9.9–10.9 10.5–11.0 — 71.12
Gibbsite AI(OH)3 2.49 50 + 60 +     1.10       — 23.11
PHOSPHATES
Hydroxyapatite Ca5 (PO4 )3 OH 3.17 5. 8. 42.   5.81 18.4     — 9.60
Chlorapatite Ca5 (PO4 )3 CI 3.18 1. 1. 42.   606 19.27     — 130.21
Fluorapatite Ca5 (PO4 )3 F 3.21 1. 2. 42.   5.82 18.68     — 8.48
Carbonapatite (Ca5 (PO4 )3 )2 CO3 H2 O 3.13 5. 8.     5.58 17.47     — 9.09
FELDSPARS-Alkali
Orthoclase KAISi3 O8 2.52 2. 3. 69.   2.86 7.21 4.4–6.0 7.0–8.2 ~220 15.51
Anorlhoclase KAISi3 O8 2.59 2. 2.     286 7.41 4.4–6.0 7.0–8.2 ~220 15.91
Microciine KAISi3 O8 2.53 –2. –3.     2.86 7.24 4.4–6.0 7.0–8.2 ~220 15.58
FELDSPARS-Plagioclase
Albite NaAISi3 O8 2.59 – 1. –2. 49. 85. 1.68 4.35 4.4–6.0 7.0–8.2 — 7.47
Anorthite CaAl2 Si2 O8 2.74 –1. 2. 45.   3.13 8.58 4.4–6.0 7.0–8.2 — 7.24
MICAS
Muscovite KAl2 (Si3 AIO10 )(OH)2 2.82 12. 20. 49. 149. 2.40 6.74 6.2–7.9 8.3–9.4 ~270 16.85
Glauconite K2 (Mg,Fe)2 Al6 (Si4O10)3(OH)2 ~2.54 ~23. ~38.     6.37 16.24       24.79
Biotite K(Mg,Fe)3 (AISi3 O10 (OH)2 ~2.99 ~11. ~21. 50.8 224. 6.27 18.75 4.8–6.0 7.2–8.1 ~275 29.83
Phlogopite KMg3 (AISi3 O10 (OH)2       50. 207.           33.3
CLAYS
Kaolinite AI4 Si4 O10 (OH)8 2.41 34. 37.     1.83 4.44 ~5.8 ~8.0 80–130 14.12
Chlorite (Mg,Fe,AI)6 (Si,AI)4 O10 (OH)8 2.76 37. 52.     6.30 17.38 ~5.8 ~8.0 180–250 24.87
llite K1.15 Al4 (Si76.5 AI11.5 )O20 (OH)4 2.52 20. 30.     3.45 8.73 ~5.8 ~8.0 250–300 17.58
Montmorillonite (Ca,Na),(AI,Mg,Fe)4 (Si, AI)8 O20 (OH)4 (H2 O)n 2.12 40. 44.     2.04 4.04 ~5.8 ~8.0 150–200 14.12
EVAPORITES
Halite NaCI 2.04 –2. –3. 67.0 120. 4.65 9.45 5.6 – 6.3 7.9–8.4 — 754.2
Anhydrite CaSO4 2.98 1. 2. 50.   5.05 14.93 6.3 8.4 — 12.45
Gypsum CaSO4 (H2 O)2 2.35 50 + 60 + 52.   3.99 9.37 4.1 6.8 — 18.5
Trona Na2 CO4 NaHCO3 H2 O 2.08 24. 35. 65.   0.71 1.48     — 15.92
Tachydrite CaCl2 (MgCI2 )2 (H2 O)t2 1.66 50 + 60 + 92.   3.84 6.37     — 406.02
Sylvite KCI 1.86 –2. 3.     8.51 15.83 4.6–4.8 7.2–7.3 500 + 564.57
Carnalite KCIMgCI2 (H2 O)6 1.57 41. 60 +     4.09 6.42     ~220 368.99
Langbenite K2 SO4 (MgSO4 )2 2.82 1. 2.     3.56 10.04     ~290 24.19
Polyhalite K2 SO4 MgSO4 (CaS04 )2 (H2 O)2 2.79 14. 25.     4.32 12.05     ~200 23.70
Kainite MgSO4 KCI(H2 O)4 2.12 40. 60 +     3.50 7.42     ~245 195.14
Kieserite MgSO4 H2 O 2.59 38 43.     1.83 4.74     — 13.96
Epsomite MgSO4 (H2 O)2 1.71 50 + 60 +     1.15 1.97     — 21.48
Bischofite MgC12 (H2 O)6 1.54 50 + 60 + 100.   2.59 3.99     — 323.44
Barite BaSO4 4.09 –1. 2.     266 82 1091.     — 6.77
Celestite SrSO4 3.79 –1. –1.     55.19 209.     — 7.90
SULFIDES
Pyrite FeS2 4.99 –2. 3. 39.2 62.1 16.97 84.68     — 9010
Marcasite FeS2 4.87 –2 3.     16.97 82.64     — 88.12
Pyrrhotite Fe7 SB 4.53 2. –3.     20.55 93.09     — 94.18
Sphalerite ZnS 3.85 3. 3.     35.93 138.33 7.8–8.1 9.3–9.5 — 25.34
Chalopyrite CuFeS2 4.07 2. 3.     26.72 108.75     — 102.13
Galena PbS 6.39 3. 3.     1631.37 10424.     — 13.36
Sulfur S 2.02 2. –3. 122.   5.43 10.97     — 20.22
COALS
Anthracite CH358 N009 KO022 1.47 37. 38. 105.   0.16 0.23     — 8.65
Bituminous CH793 N015 O078 1.24 50 + 60 + 120.   0.17 0.21     — 14.30
Lignite CH849 N015 O211 1.19 47. 52. 160.   0.20 0.24     — 12.79