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Oxide Analysis Anhydrous Component Weight Tool

Renormalize one explicitly supplied oxide component to a water-excluded total without inferring mineralogy or missing components.

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Description

Express a reported oxide component on an anhydrous percentage basis.

Geochemical results depend on analyte, matrix, dry/anhydrous basis, reference composition, isotope-ratio direction and censoring conventions. A normalized ratio or local correction is distinct from a validated mineral formula or geological interpretation. Operational extraction fractions and nominal site occupancies need their original analytical context.

Express a reported oxide component on an anhydrous percentage basis.

When to use this tool

Use Oxide Analysis Anhydrous Component Weight when checking the stated geochemical reporting basis, local correction or reference convention.

How to use the tool and how it works

  1. Enter reportedComponentWeight, reportedWaterWeight, totalReportedWeight. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read anhydrousPercent, dryReportedTotal. Use the output convention below.

Require nonnegative reported water and positive total-minus-water, with component weight within that dry reported total. Return dryReportedTotal and 100*component/dryTotal as anhydrousPercent.1

Input fieldMeaning and unitsAccepted input
reportedComponentWeightReported Component WeightRequired. Finite number; minimum 0.
reportedWaterWeightReported Water WeightRequired. Finite number; minimum 0.
totalReportedWeightTotal Reported WeightRequired. Finite number.
Output fieldInterpretationReturned shape
anhydrousPercentPercentage number 100*component/(total-water), not a [0,1] fraction.Required. Finite number.
dryReportedTotalDry Reported TotalRequired. Finite number.
json
{
  "input": {
    "reportedComponentWeight": 20,
    "reportedWaterWeight": 10,
    "totalReportedWeight": 100
  },
  "output": {
    "anhydrousPercent": 22.22222222222222,
    "dryReportedTotal": 90
  }
}

Limitations and assumptions

  • Weights require a common analytical basis; this normalizes one component without identifying water species, validating oxide closure or fitting a mineral formula.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use verified analytical methods, reference materials and appropriate complete geochemical models with qualified laboratory interpretation for actual results and safe handling.

References

  1. Calculation and input contract: geochemistry/oxide-analysis-anhydrous-component-weight — tool.io

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