Table 2.

Concentration ranges from EMP and LA-ICP-MS analysis of primary sulphides and sulfosalts and secondary oxide minerals

MineralMethodAgAsCaCdCuFeHgMgMnPbSbSeZn
ppmppmPpmppmppmppmppmppmppmppmppmppmppm
GalenaEMP<290<550 to 555<564 to 1500<363 to 981<49184.9 to 87.3%<889<433 to 8312
LA-ICP-MS25 to >20004 to 3843 to 14021 to >400055 to 2.7%2 to 30>400012 to 39561 to 1820 to >5000
Average915349671323686.5%53761011
SphaleriteEMP<324<659936 to 5516<485 to 3968<262 to 1.5%<497 to 3869<1294 to 2668<64764.4 to 70.1%
Average362686219472049134766.6
Tennantite-TetrahedriteEMP<323 to 3.3%1.5 to 17.7%1295 to 961532.6 to 42.7%<286 to 23601972 to 6892<1289 to 6%3.8 to 25%7.1 to 10.3%
Average1.3%7.5%202038.56164859495618.1%8%
PyriteEMP<323<445<361<50746.8 to 47.2%<4911481 to 2699<705<384
Average47%2247
BournoniteEMP<3232.4 to 2.7%<361 to 52013.1 to 13.6%<286<491 to 50643.3 to 43.5%20.6 to 20.9%<384 to 1363
SmithsoniteEMP<385 to 1021<356 to 2650157–1.5%<301 to 1.4%<452 to 3.3%<277 to 8.3%<593 to 5679<182 to 8.1%<275 to 5026761 to 2.2%<235 to 1.7%<60334.5 to 54.9%
LA-ICP-MS1 to 59310 to >26001497 to >1600146 to >400020 to 8.3%18 to 3117384 to >400028 to >5000<0.02 to 29>5000
Average493892746668287674716480632348.5%
CerussiteEMP<578 to 915<407 to 3558<160 to 1530<453 to 1475<605 to 2.4%<420 to 3025<675 to 8139<157<40870.7 to 79.5%<327 to 1709<560<597 to 5.3%
LA-ICP-MS0.2 to >2000<0.3 to >26006 to >16008 to >4000119 to 69547 to 219>40001 to >5000<0.02 to 3096 to >5000
Average1320344363414246055777.3%281697976
AnglesiteEMP<578<578 to 3944<160692 to 1191<605 to 7.5%<420 to 521<675 to 1254<157<40860.1 to 68.6%<327 to 5187<560782 to 1%
LA-ICP-MS1709 to >20001140 to >2600112 to >1600>4000225 to 38158 to 11>4000719 to >500026 to 432505 to >5000
Average7624215412.1%97979666.1%1785342908
MalachiteEMP<385973 to 2047<42550.3 to 54.5%<319<593<1349 to 1.5%<557 to 582<6033177 to 7.3%
AzuriteLA-ICP-MS172>26001180>4000161133>40002453<0.02>5000
Malachite/AzuriteAverage165353.2%79573291.6%

Values below detection limit are listed as ‘<[Detection Limit]’. Values one order of magnitude above or below the ICP-MS calibration curve limit are listed as ‘>[Limit]’ and ‘<[Limit]’, respectively. No Hg standard was available for LA-ICP-MS. Average concentrations were calculated using either half the value of the detection limit, the Maximum Likelihood Estimator Method or Kaplan–Meir Method (as described by Helsel 2005, 2012) depending on the number of non-detects.