COMBINE SIZE FRACTIONS:

During size by size analyses, it is sometimes necessary to combine two or more size fractions (e.g. +106 and +75 microns) to better understand the data.

To use:
If needed, use the emelental to mineral conversion tool to calculate the iron sulphides (IS) and non sulphide gangues (NSG) assays.

✅Enter the original size fractions in the first columns of the table below.
✅Enter the original sample's dry weights retained per size fraction.
✅Provide the original sample assays per size fraction (leave empty if not applicable).
✅Specify the size fractions to combine.
✅Click on "Combine" button to mathematically calculate the recombined samples.

Watch a Youtube video example.

Size
fractions (µm)

Dry
weights (g)

Cu (%)

Pb (%)

Zn (%)

Ni (%)

S (%)

Fe (%)

Au (g/t)

Ag (g/t)

Bi (g/t)

Mo (g/t)

PGMs (g/t)

As (%)

SiO2 (%)

MgO (%)

Al2O3 (%)

CaO (%)

Fe2O3 (%)

Li2O (%)

K2O(%)

F (%)

U (g/t)

C (%)

IS (%)

NSG (%)

Size fractions to combine:
Provide the size fractions to combine (from coarse to fine)
1. Combine: with and
2. Combine: with and
3. Combine: with and
4. Combine: with and

Recalculated sample: