Feature
●GOLD TESTING KIT: Set of four needles from ToolTreaux includes 10k, 14k and 18k for gold purity and karat testing, as well as a 999S needle for silver testing; kit also includes testing stone to help in the identification process of precious metals
●NEEDLES: Used as a comparison when testing gold or silver, needles and item in question should be scratched onto testing stone and treated with appropriate acid to determine karat content of jewelry, gold or other precious metals
●TESTING STONE: Essential tool for hobbyists, jewelry makers, retailers and designers, gold prospectors and more for evaluating precious metals; made from natural black stone, is resistant to acidity and should always be cleaned thoroughly between each use
●KEY RING: Each needle measures 1.75 inches in length; Keep silver and gold testing kit needles organized on included brass key ring; lightweight tool making it great for on the go testing or travel
●SPECIFICATIONS: Material: brass, gold, silver, natural stone; Kit Weight: 0.10lbs; Needle Dimensions: 2.5 x 1.0 x 0.25 inches; Stone Dimensions: 2.0 x 1.5 x 0.25 inches; COO: Made in India
Description
Scratch testing is one of the oldest and most reliable karat and purity tests available for testing precious metal quality and content, and is ideal when used in conjunction with testing stones and testing solutions.
ToolTreaux’s 6pc Silver and Gold Testing Kit includes 10k, 14k, 18k gold and 999S silver needles, conveniently held together for organization and safekeeping on a brass key ring. Testing stone included measures 2.0 x 1.5 x 0.25 inches, is made from natural black stone, and should always be cleaned thoroughly between each use.
Incredibly lightweight and compact, the ToolTreaux 6pc silver and gold testing kit needles are great for on the go testing or travel if needed. Suitable for those in jewelry sales and appraisal, jewelry making and design, to include with gold prospecting equipment and gold panning kits and more.
HOW TO TEST GOLD
Scratch the metal in question onto testing stone; be sure the testing stone is clean and free of any other materials.
Then, scratch the estimate gold karat content needle next to the original sample.
Once you have visible samples to work with, place a small drop of the closest testing solution to the karat you estimate the metal might be. If the solution dissolves the metal, the metal is LESS than the karat that is displayed on the testing solution bottle. If the metal sample stays and does not dissolve, it is at least the karat of the testing solution used or possibly higher.
HOW TO TEST SILVER
Scratch the metal in question onto the testing stone; be sure the testing stone is clean and free of any other materials. Then, scratch the 999S needle next to the original sample. Once you have visible lines to work with, place a small drop of the silver testing solution and look for one of the following results:
Dark Red = 90-100% Purity
Light Red or Brown = 80-90% Purity
Light Green = 65-75% Purity
Creamy White results can indicate that the item is sterling silver
Green results can indicate that the item is silver plated.
