Precious Metal Testing
Equipment and supplies for testing gold, platinum and silver.

Shor Fire Assay System

A process dating back thousands of years, in 1979 Shor introduced the first turn key in-house fire assay systems to the jewelry industry. These first systems purchased from Shor in 1979 are still in continuous use and will probably continue to be used well into the 21st century.

The method known as "Fire Assay" is the oldest known method of assaying gold and continues to be the most accurate and economical method of determining the purity of gold. Capable of precision down to 1 part in 10,000 the fire assay system allows you to make up to 20 assays at once with a cost as low as $1.00 per assay.

This system can easily and inexpensively be expanded to greater capacity. Every sample can be assayed for gold content, platinum & silver content. The process returns the sample as 999.99+% pure metal. Many samples can be assayed at the same time. We have separate procedures for both large and small batch sampling.
Equipment & Supplies Price   Equipment & Supplies Price
Porcelain Crucibles $19.99 Each Instructions No Charge
Lead Foil $84.95 (5 lb. Roll) 110V  
Cupels (1.5") $99.95 (100pcs. box) Rolling Mill  
Cupels (4") $5.95 Each Scale  
Cupels (4") $24.95 (6 pack) Anvil  
Assay Tongs   Chaser Hammer  

The assaying system will fit onto a 3' x 5' (90 x 150 cm) table and includes all equipment and supplies (except acid and water).

The Shor Fire Assay System comes complete with both written instructions that are updated regularly and the transcript of a seminar given by Shor on assaying (including questions and answers).

Additional technical support is available over the phone, internet and/or fax at no extra charge.

Complete Shor Fire Assay System:   stock# FireAssay $4,795

A brief description of how fire assay works:

The sample of gold is weighed very precisely and the amount is recorded. The sample is wrapped in assay lead foil along with a quantity of pure silver. This wrapped ball is placed in the furnace in a cupel (a special kind of disposable crucible). All the non-precious metals are absorbed by the hot cupel. The precious metal forms a button within the cupel. The cupel is removed from the furnace, from the cupel and then brushed to remove any lingering bits of cupel. It is hammered flat, rolled thin and then heated in a porcelain crucible containing a weak nitric acid solution. The acid removes the silver, which is poured off and the silver recovered from solution. The gold is then rinsed in distilled water to remove any residual acid and then dried. The sample of gold is now at least 99.999 pure. The sample is then weighed again. The original weight of the impure sample is divided into the weight of the now pure sample. The result is the assay

 

Precious Metal Testing - Scratch Test Kits & Supplies
Scratch testing is one of the oldest methods known to man for testing the karat of gold. In experienced hands, a scratch test is sensitive to within about +/- ½ karat or about 2%. In the hands of a novice, sensitivity is more likely to be about +/-  1-2 karat. Kits come complete with instructions Gold Scratch Test Instructions 

These kits are for testing gold, silver and platinum. They come with gold test needles, wooden case, test acids and a scratch stone.

  Description Stock # Price
Complete
Test Sets

Precious Metal Test Kit w/ 3 needles (10, 14, 18K)

TES-808.00 Buy $56.90

Precious Metal Test Kit w/ 5 needles (8, 10, 12, 14, 18K)

Test5 Buy $99.99

Precious Metal Test Kit w/ 9 needles (4, 6, 8, 10, 12, 14, 16K,18, 20K)

Test9 Buy $116.95
 
Needle Sets

9 Test Needle Set 4, 6, 8, 10, 12, 14, 16, 18, 20 Karat

56.705 Buy $99.80

5 Test Needle Set 8, 10, 12, 14, 18 Karat

TES-805.00 Buy $56.80

5 Test Needle Set 10, 14, 18, 22, 24 Karat

TES-805.62 Buy $64.30

4 Test Needle Set  10, 12, 18 Karat & Silver

TES-804.00 Buy $48.45

3 Test Needle Set  10, 12, 14 Karat

TES-803.00 Buy $43.90
....
Test Stones
Test Stone, 2" x 1½" x ¼" 56.710 Buy $9.95
Test Stone, 4" x 2" x  ¼" TestStone4 Buy $29.99
....
Gold Test Acid, 10 K TestAcid10 Buy $4.99
Gold Test Acid, 14 K TestAcid14 Buy $4.99
Gold Test Acid, 18 K TestAcid18Buy $4.99
Silver Test Acid TestAcidSilver Buy $4.99
Platinum Test Acid / Gold Test Acid, 22 K TestAcidPlat Buy $9.99
  Gold Scratch Test Instructions   Free

Electronic Gold & Platinum Testers

Electronic gold Tester are a fast and easy way to test gold. They have the advantages of:

  1. Speed
  2. Accurate, sensitive readings even when operated by a novice. Sensitive to within ½ karat or 2%.
  3. Nondestructive- the surface of the piece being tested does not become marred by a scratch
  4. Builds confidence with your customer- the karat reading is easily demonstrated to your customer.
Electronic Test Stone & M Series Electronic Gold Testers

Electronic Touch Stone
  For slightly more than the cost of an acid test kit, the ET18 precisely determines gold karat values equal to or greater than 10K, 14K and 18K.  Pocket sized and battery operated.  One year warrantee.

TES-174.00 Buy          Price $102.80

Replacement Activator & Electrolyte Kit  
TES-172.10 Buy     $21.95
    

M18A9
  Precisely determines gold karat values equal to or greater than 9K, 10K, 12K, 14K and 18K.  Battery operated.  Two year warrantee.

Stock# M18A9     TES-172.00 Buy   $189.95
Replacement Activator & Electrolyte Kit  TES-172.10 Buy     $29.95

M18A9 Instructions

M24
  These are some of the most advanced gold tester in the world.  Precisely determines gold karat values equal to or greater than 9K, 10K, 12K, 14K, 18K, 20K, 24 K.   Battery operated and are warranted for two years.


Stock# TES-170.00 Buy                          Price   $219.95
Replacement Activator & Electrolyte Kit   TES-170.10 Buy   $24.95

M24 Instructions

 

GXL, GS & GT Electronic Gold & Platinum Testers

These electronic Tester operate on ordinary household current and can also be run on batteries (requires two 9 volt batteries, not included). Replacement consumables include the conductive gel tube and the Pro cleaning solution.

We carry 2 different categories of electronic Tester: Direct Reading electronic Tester and Chart Reading Tester. They all work similarly. 

Direct Reading GXL Electronic Gold & Platinum Tester
These testers give you a direct L.E.D. reading of what the karat is. So, for example, if the karat of jewelry you are testing is 14K, it will show "14K" on the L.E.D. display. This can be quite useful when buying jewelry from the public or when, when selling, you feel the need to show customers that the karat stamped on your jewelry is the true karat.  The GXL electronic Tester come complete with written instructions.      

Chart Reading GT Electronic Gold & Platinum Tester
To use these Tester, you must compare the numerical L.E.D. reading with a chart that is printed on the tester. These Tester have two advantages; They are somewhat more sensitive than the Direct Read Tester and they are also significantly less expensive. Their disadvantage is that you have to look at a chart to get your result..  The GT electronic Tester come complete with written instructions.      

Description Range Voltage Stock# Price
Direct Reading GXL-18 6-18 K Battery (optional adaptor available in 110v or 220v) 56.762 Buy $620.15
GXL-18 Gel     56.766 Buy $18.05
Direct Reading GXL-24 PRO 6-24 K, Platinum Battery  ( optional adaptor available in 110v or 220v) 56.763 Buy $745.45
GXL-24 Gel     56.767 Buy $18.05
GT & GXL Cleaner     56.769 Buy $12.55
         
Chart Reading GT-3000 6-18 K Battery  ( optional adaptor available in 110v or 220v) 56.782 Buy $281.95
GT-3000 Gel     56.766 Buy $18.05
Chart Reading GT-4000 6-24 K, Platinum Battery ( optional adaptor available in 110v or 220v) 56.785 Buy $499.70
GT-4000 Gel     56.767 Buy $18.05
GT & GXL Cleaner     56.769 Buy $12.55

 

Consumable Supplies for Electronic Gold & Platinum Tester
Description For Which Tester Stock # Price
Pro Cleaning Solution All GXL & GT Tester 56.769 Buy $12.55
Replacement Gel Tube G-XL-18, GT-3000 56.766 Buy $18.05
Replacement Gel Tube GXL-24 PRO, GT-4000 56.767 Buy $18.05

AuRACLE™ Gold Tester

Quickly, safely and accurately buy and appraise gold with confidence.

  • World€™s most user-friendly, best performing handheld electronic gold tester with unmatched accuracy PATENTED
  • Tests all colors of gold from 6K to 24K
  • Tests platinum 
  • Follow easy steps to identify non-gold, gold plate and gold filled as NA
  • Immediate test results; no waiting between tests
  • Simply touch pen probe to gold and LED indicates karat
  • Pen probe provides approximately 5000 tests with proper care
  • No messy gel. No staining chemicals. No dangerous acid
  • Compact and portable - 9V alkaline battery powered
  • Pen probe, battery and easy to follow instructions included

Stock# 2007

2007 Buy      Introductory Price $459.00

 



AuRACLE™ AGT2 ELECTRONIC MOBILE GOLD & PLATINUM TESTER FOR APPLE IOS IPHONE/IPAD/IPOD TOUCH & ANDROID

 

The revolutionary and best performing AuRACLE gold tester has evolved to a NEW generation in a mobile version that makes it faster, easier and more convenient than ever before. Amazingly you may now use your favorite Apple iOS or Android device for testing gold and platinum!

 

  • Works with iPhone, iPad, iPod Touch and Android phones and tablets
  • Mobile software application included
  • One touch easy pen probe calibration for consistent results
  • Save results instantly for tracking testing history
  • Optional downloadable iTune or Android Apps available for increased productivity and screen customization
  • World’s most user-friendly, best performing handheld electronic gold tester with unmatched accuracy PATENTED with Patents Pending
  • Tests all colors of gold from 6K to 24K
  • Tests platinum
  • Follow easy steps to identify non-gold, gold plate and gold filled as NA
  • Immediate test results no waiting between tests
  • Simply touch pen probe to gold or platinum and read the test results on one of two dynamic displays:
  • Digital bar graph numerical readout • Analog meter readout
  • Pen probe provides approximately 5000 tests with proper care
  • No messy gel. No staining chemicals. No dangerous acid.
  • Compact and portable - Small enough to easily fit into your pocket
  • No external power required
  • Includes pen probe, file, mobile device stand, testing plate and easy to follow instructions
  • Variable karat gold options may be used to calibrate this instrument
Apple iOS Version - Stock #2005
List Price $639.00
Your price  $449.00
Stock# 2005  Buy

Android Version - Stock #2006
List Price $639.00
Your price  $449.00
Stock# 2006  Buy