Geology Mineral Chemistry Cation Calculation Calculator
Actual mineral oxide-to-cation oxygen-basis normalization with caller independently verified oxide stoichiometry/molar masses and mineral oxygen basis. Not infer valence, site occupancy, Feoxidation, volatile deficits or mineral classification.
Description
Mineral cation normalization converts declared oxide amounts to a selected oxygen basis.
Mineral cation normalization converts declared oxide amounts to a selected oxygen basis.1
Molar masses, stoichiometry and iron-speciation conventions must be established independently. Use this tool to calculate the stated observation or conditional model from supplied measurements.
When to use Geology Mineral Chemistry Cation Calculation Calculator
Use this tool to calculate the stated observation or conditional model from supplied measurements. Establish the sample and coordinate basis, matching units, calibration source and applicable model assumptions.
How to use Geology Mineral Chemistry Cation Calculation Calculator and understand its results
- Establish the sample and coordinate basis, matching units, calibration source and applicable model assumptions.
- Enter actualOxideWeightAmounts, callerVerifiedOxideMolarMasses, callerVerifiedCationsPerOxide, callerVerifiedOxygensPerOxide, callerIndependentNormalizationOxygens, using the field meanings and rules below, then run the tool.
- Read result.conditionalOxygenNormalizedCations. Interpret each field using the units, signs and evidence rules below.
- If input validation fails, correct the reported field and run again. Before applying a successful result, check the stated reference scope, units, assumptions and any retained unknown evidence.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualOxideWeightAmounts | Actual oxide weight amounts | list of number | Required |
| callerVerifiedOxideMolarMasses | Caller verified oxide molar masses | list of number | Required |
| callerVerifiedCationsPerOxide | Caller verified cations per oxide | list of number | Required |
| callerVerifiedOxygensPerOxide | Caller verified oxygens per oxide | list of number | Required |
| callerIndependentNormalizationOxygens | Caller independent normalization oxygens | number | Required |
Require nonempty aligned oxide amounts, positive molar masses and integer cation/oxygen stoichiometries 1–100. Oxide amounts are nonnegative; the selected oxygen basis is positive and need not be integer. Divide each amount by its molar mass, sum mole×oxygen contributions and require positive oxygen total. Scale each mole×cation contribution by basis/oxygenTotal. No chemical identity, oxidation state or complete stoichiometry is inferred.
moles_i=oxideAmount_i/molarMass_i; oxygenTotal=Σ(moles_i×oxygenCount_i); normalizedCations_i=moles_i×cationCount_i×oxygenBasis/oxygenTotal Apply the field units and exact ordering, boundary and evidence rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Structured result containing the calculation or selected reference fields below | object |
| result.conditionalOxygenNormalizedCations | Conditional Oxygen Normalized Cations; use the units, sign convention and calculation stated above | list of number |
{
"input": {
"actualOxideWeightAmounts": [
60,
40
],
"callerVerifiedOxideMolarMasses": [
60,
40
],
"callerVerifiedCationsPerOxide": [
1,
1
],
"callerVerifiedOxygensPerOxide": [
2,
1
],
"callerIndependentNormalizationOxygens": 6
},
"output": {
"result": {
"conditionalOxygenNormalizedCations": [
2,
2
]
}
}
}Limitations and assumptions
Molar masses, stoichiometry and iron-speciation conventions must be established independently. Results depend on the independently established measurement basis and the exact model assumptions above.
Every listed input requires an explicit value. Unexpected fields, incorrect value types, nonfinite numbers and sparse numeric arrays fail validation; tool-specific bounds and alignment rules apply as described above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful calculation that reports a false comparison or retains unknown evidence.
Alternative or Complementary methods
Use Geology Fe Number Calculator to examine a related aspect: Iron number compares divalent iron with the combined divalent-iron and magnesium amount.
Use Geology Niggli Value Al Calculator where its separate inputs and scope apply: Niggli al describes an independently computed aluminum group within an adopted molar normalization.
References
Similar or alternative tools
- Geology Fe Number Calculator
Iron number compares divalent iron with the combined divalent-iron and magnesium amount.
- Geology Niggli Value Al Calculator
Niggli al describes an independently computed aluminum group within an adopted molar normalization.