gemstone hardness tester​

Rockwell Hardness Tester Maker: United Hardness Systems, Inc., Huntington Beach, CA Model: Tru-Blue Vertical Capacity: 10″ Throat Depth: 5.5″ Load Selections: 15, 30, 45, 60, 10 and 150 kg Electrics: 110 Volt, Single Phase, 60 Cycle Approximate Dimensions: 8″ x 19.5″ x 36″ Tall Approximate Weight: 125 lbs.

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High quality 8 Items Gem Testing Instruments Mohs Gemstone Hardness Tester from China, China's leading Hardness Gem Testing Instruments product, with strict quality control Mohs Gemstone Hardness Tester factories, producing high

You calculate Mohs Scale of Hardness by doing the Mohs Hardness Test. If Mineral B can scratch mineral A, then Mineral A is the softer of the two. By working 

The industry's most trusted colored gemstone tester is now redesigned to be more compact, sturdy and portable. In its second generation, the Presidium Gem Tester II provides a quick and easy way to identify diamonds/moissanites and separates up to 16 common colored gemstones based on their thermal conductivity with its clear and direct analog display.

Gemstone scratch testing can help determine the Mohs hardness value of a mineral sample. Learn how to conduct this destructive gem test safely. Destructive Gemstone Tests: Streak Testing Streak testing is a destructive gemstone test rarely used by gemologists. Most gems leave no streak. Learn which gems do and what colors they leave.

Use this kit for "scratch testing" substances to determine their Hardness according to the Mohs' Hardness scale, which ranges from 1 to 10, where Diamond is the 

Mineralab Mohs' Hardness Test Kit for Industrial Applications This test kit (Amazon link) is used by many geologists and professionals such as rock shop 

Choose From A Wide Array of Presidium Colored Gemstone Handheld & Desktop Digital Testers, With Instant Results.

Alibaba Timepieces, Jewelry & Eyewear Jewelry Accessories Jewelry Tools & Equipment Wholesale hardness tester for gemstones. Hardness Tester For Gemstones (99 products available)

Hardness Level Tester Genuine tools Gemstone Mohs hardness pencil Model Number: FMH-8 Hardness Pencil is used for scratching the rough gemstones.If there are scratches, the gemstone hardness is lower than that hardness marked on the pens. Applications: Gemological labs, gemology schools/institutes, jewelry/gem industry, --etc. Specification: Quantity 8 Items