Mining Methods Vary Widely - Mining and the Environment: From Ore to Metal - page 244

FIGURE 5.10
Flowchart of Traditional Small-scale
Gold Recovery Process

Crushing
(by manual or fabricated crusher) Source:

CABALLERO 1981, 1984, 1989;
CABALLERO, J. 1991;
How (1991)

Loading

Spillage

Rodmill or with
Basalt Grinder

Slurry

Launder (Anayan) Middling

Spillage

Sluice Box

Spillage

Harvesting Sluice Tailings

Spillage

Sluice Concentrate Tailings

Primary Panning Tailings
Collected in Containing Tank

Panning

Panning Concentrate

Manual Grinding on
Basalt Tools

The spillage is collected and
recycled for its gold content.

Spillage

Secondary Panning Tailings Panning

Borax Gold Dust

The crucible after being used for several times is later
collected and pulverized for processing of its gold content.

A

Smelting on
Earthenware Crucible

Slag

B

The spattering which is a result of heating the material
to high temperatures, is collected for further processing.

Gold bead

Weighing

Selling