Services

Swaslab Services


Rock, Drill Core and Soil Samples

Sample Preparation
Drying of samples at 80°C in a forced air circulation system.
Crushing to > 80% passing 1700 microns (10 mesh) using low chrome steel jaw plates
Splitting samples using a rotary splitter to obtain test samples and duplicates
Pulverizing to >90% passing 107 microns (150 mesh) using low chrome steel bowl sets
Or >90% passing 75 microns for multi element analysis
Re-blending of pulps (homogenizing) using a short pulverizing cycle
Screening of soil samples using an 80 mesh sieve to obtain a subsample for assay. Oversized material is normally discarded

Internal Quality Control

Size testing of crushed and pulverized material is performed daily for each equipment.
Ten (10) percent replicate assays are performed and reported on the certificates for fire assay gold analysis. A method blank and certified reference material are applied and reported for each furnace load to monitor the fire assay process.
A duplicate crushed sample is drawn at random and assayed for each work order to monitor precision.
Crushed limestone blanks and pulverized silica blanks are assayed daily to monitor cross contamination of samples.

Gold and Precious Metals (Geochemical Analysis)

Fire Assay Finish Detection
Gold 1 assay ton FA-AAS
MP AES
5 ppb
2 ppb
Platinum 1 assay ton FA-AAS
MP AES
5 ppb
2 ppb
Palladium 1 assay ton FA-AAS
MP AES
5 ppb
2 ppb
Note: 50 g assays for the above are also available.

Precious Metal Assay (Ore Grade)

Fire Assay Finish Detection
Gold 1 assay ton FA-AAS or MP-AES 0.01 g/tonne
Platinum 1 assay ton FA-AAS or MP-AES 0.01 g/tonne
Palladium 1 assay ton FA-AAS or MP-AES 0.01 g/tonne

Gold and Silver Concentrate

Fire Assay Finish Detection
Gold 1 assay ton Gravimetry 0.30 g/tonne
Silver 1 assay ton Gravimetry 3.0 g/tonne
Other Precious Metal Analysis Fire Assay Finish Detection
Bullion fineness – Gold or Silver 1 assay ton Gravimetry 0.30 g/tonne
Gold in mill solution (high grade) 1 assay ton Gravimetry 0.30 g/tonne
Gold in mill solution (low grade) 1 assay ton MP-AES 0.01 g/tonne
Gold by Pulp and Metallic Sieve Analysis
Sample size up to 2 kg with surcharge for each 100 g overweight

The pulp and metallic sieve analysis includes:

  • crushing and pulverizing the entire sample
  • screening the entire sample through a 147 micron screen
  • assaying the entire +147 micron fraction
  • duplicate assays on the -147 micron fraction
  • weighted average for Gold in the entire sample reported

Single Element Geochemical Analysis

(Aqua Regia Digestion with FAAS or MP-AES Finish) Range
(ppm)
Antimony (Sb) 5 – 1,000
Arsenic (As) 5 – 10,000
Beryllium (Be) 0.5 – 1,000
Bismuth (Bi) 5 – 1,000
Cobalt (Co) 2 – 1,000
Copper (Cu) 1 – 10,000
Lead (Pb) 1 – 10,000
Molybdenum (Mo) 2 – 10,000
Nickel (Ni) 1 – 10,000
Silver (Ag) 0.2 – 100
Tellurium (Te) 2 – 1,000
Zinc (Zn) 1 – 10,000

Multi-Element Analysis by ICP – AES

Element 30 Element
Aqua Regia Leach Package
Silver Ag 0.2 – 200 ppm
Aluminum Al * 0.01 – 15 %
Arsenic As 5 – 10,000 ppm
Barium Ba * 10 – 10,000 ppm
Beryllium Be * 0.5 – 100 ppm
Bismuth Bi 5 – 10,000 ppm
Calcium Ca * 0.01 – 15 %
Cadmium Cd 1 – 100 ppm
Cobalt Co 1 – 10,000 ppm
Chromium Cr * 1 – 10,000 ppm
Copper Cu 1 – 10,000 ppm
Iron Fe * 0.01 – 15 %
Potassium K * 0.01 – 10 %
Magnesium Mg * 0.01 – 15 %
Manganese Mn * 5 – 10,000 ppm
Molybdenum Mo 2 – 10,000 ppm
Sodium Na * 0.01 – 5 %
Nickel Ni 1 – 10,000 ppm
Phosphorus P * 10 – 10,000 ppm
Lead Pb 2 – 10,000 ppm
Antimony Sb 5 – 10,000 ppm
Scandium Sc 1 – 10,000 ppm
Tellurium Te * 2 – 5,000 ppm
Strontium Sr * 1 – 10,000 ppm
Titanium Ti * 0.01 – 10 %
Vanadium V 1 – 10,000 ppm
Tungsten W * 10 – 10,000 ppm
Yttrium Y 1 – 10,000 ppm
Zinc Zn 1 – 10,000 ppm
Zirconium Zr * 1 – 10,000 ppm

Aqua Regia (HCl-HNO3) Digestion: Partial dissolving method.

Important Note: Multi-element package is contracted to an ISO/IEC 17025:2005 accredited commercial laboratory. Additional elements are available.

Whole Rock Analysis by ICP-AES

Classical Whole Rock Reported as Detection Limit (%)
Aluminum Al2O3 0.01
Barium BaO 0.001
Calcium Cao 0.01
Iron Fe2O3 0.01
Magnesium MgO 0.01
Manganese MnO 0.01
Phosphorus P2O5 0.01
Potassium K2O 0.01
Silicon SiO2 0.01
Sodium Na2O 0.01
Strontium SrO 0.001
Titanium TiO2 0.01
Zirconium ZrO2 0.001
Loss on ignition LOI 0.10

Minor Elements Reported as Detection Limit (ppm)
Beryllium BeO 5
Chromium Cr2O3 5
Cobalt CoO 5
Copper CuO 5
Nickel NiO 5
Niobium NbO 10
Rubidium Rb2O 10
Scandium ScO 5
Vanadium V2O3 5
Yttrium Y2O3 5
Zinc ZnO 5

Lithium metaborate fusion: custom fusions available for high sulphide and other difficult matrices
Important Note:Whole Rock package is subcontracted to an ISO/IEC 17025:2005 accredited commercial laboratory.

Storage and Disposal of Sample Rejects and Pulps
Monthly storage of reject samples after 3 months
Monthly storage of sample pulps after 3 months
Disposal of reject and pulp samples

Note:

  • Monthly storage beyond the three month period is to be arranged in advance by the customer. Storage charges will apply three months after the certificate release date.
  • Customers will be contacted one month before samples and pulps are to be disposed of.
  • Shipping arrangements and costs related to the return of reject samples and sample pulps will be the responsibility of the customer.
  • Swastika Laboratories will take all reasonable precautions to protect samples, pulps, and sample rejects from receipt to final storage but will incur no liability for loss, deterioration, or damage thereto from any cause whatsoever.
Sample Pick-Up Services
Swastika Laboratories Ltd. can provide a driver, truck and trailer to pick up samples
at the customer’s site at additional cost if the one way distance is less than 300
kilometers. The return of rejects and pulps to the customer would be included in the
sample pick-up fee.
Supplies
Shipping labels, Analysis Requisition forms and sample tickets will be provided free of charge at the laboratory.