SAMPLE PREPARATION
As a general rule, samples should be taken from across the mine site (both the mine perimeter and varying subsurface depths) to replicate actual geological conditions and prevent data biases. We'll help develop a plan to gather, transport, and prepare prepare your samples to ensure testing is reflective of genuine geological conditions.
We ensure sample integrity is maintained from receipt at our laboratory and throughout our test preparation protocols. We divide samples into smaller subsets and ensure they are uniform and large enough to account for metallurgical variations. We plann every step so that your samples accurately represent your mine site.
Crush Size
Crush size heavily impacts solution distribution and permeability. Our diffusion fraction extraction process determines the microporosity and tortuosity of ore to understand time rate of recovery based on geological composition and particle size distribution.
Sample Preparation
Sample Receipt
Crushing - Sample > 4"
Crushing - Sample < 4"
Crushing - Sample < 1"
Pulverizing
Sample receipt, logging and preparation
Preparation of sample greater than 4"
Coarse crushing of sample to 1"
Fine crushing of sample to 10 mesh
Pulverize to 75 µm
Sample Analysis
Splitting - Head Assay
Splitting - Head Assay
Moisture
Particle Size Distribution - Coarse
Particle Size Distribution - Fine
Particle Size Distribution - Fine
Bulk Density
Preparation of head assay charge
Preparation of sample test charge
Determination of as-received moisture content
Tyler Sieve Analysis - 10 mesh to 20"
Tyler Sieve Analysis - 100 mesh to 2"
Tyler Sieve Analysis - 325 mesh to 10 mesh
Dry bulk density or water immersion
Refraction Extraction Report