Gravity Recoverable Gold (GRG) Test

 

Gravity Recoverable Gold Test

We use a centrifugal force concentrator to determine the amount of gold recoverable from your ore concentrates. We will provide a report on the percentage of concentrates from your ore vs the tailings or pans in your ore. We test using 2 charges of 3 kilograms per charge, fire assay report per charge. 

Precious Metal Assay Testing

Gold Assay ONLY - $50  (Plus $25 Service Fee for materials and waste disposal for Assay)

Gravity Recoverable Gold - GRG Testing - $350  + $50 service and waste disposal fee (Two 3 kilo test charges will measure the free gold, and gold recoverable from black sands, or sulfides. No particle size testing included. 2 fire assays included and standard report provided. 

Full Site Survey Services - $$750 + $100 service and waste disposal fee (12 point sample survey bundle. Includes 1 GRG test per site survey.

DISCLAIMER: When preparing your sample please follow sampling best practices. When collecting a sample for assay please keep a log and mark each sample legibly. 

Sample Requirements:

Basic Fire Assay - Gold - 100 grams crushed at 40 mesh minus 

Gravity Recoverable Gold or GRG Testing - Min of 6 kilograms of material crushed at 40 mesh minus. $50 crushing charge if Bold Guardian Labs needs to crush material

Full Site Survey - 12 x 100 gram samples bagged individually and legibly marked/labeled, and Min of 6 kilograms of material crushed at 40 mesh minus. $50 crushing charge if Bold Guardian Labs needs to crush material.