Specification Brand : Qrhky BulletPoint1 : [Mohs Scale of Hardness] Mohs Hardness Tester Is Divided Into 2-9 Levels, and The Numerical Samples for Each Level Are As Follows: 2# Gypsum, 3# Calcite, 4# Fluorite, 5# Apatite, 6# Orthoclase, 7# Quartz, 8# Topaz, 9# Corundum. BulletPoint2 : [High-Quality Materials] The Rock Hardness Testing Kit Is Made of Stainless Steel, Which Is Sturdy and Durable. There Are 8 Hardness Pens and 8 Inspection Samples In The Box. BulletPoint3 : [High Sensitivity] The Metal Hardness Tester Has A High Degree of Accuracy. It Has A Multi-Faceted Shape and Is Carefully Processed, Making It More Convenient and Durable to Use. BulletPoint4 : [Widely Used] Hardness Testing Kit Is Used for Testing Various Materials Such As Gemstones, Jade, Tiles, Floors, Glass, Mobile Phone Screens, Minerals, Concrete, Etc. BulletPoint5 : [How to Use] When Using The Metal Testing Kit, Keep The Pen Tip At 70° to The Ground, Press The Pen Tip, Draw A Straight Line Above The Object to Be Tested, and Determine The Hardness Grade Based on The Scratches. Color : Black ExternallyAssignedProductIdentifier : 8049459560699 IncludedComponents : Test Samples ItemDisplayWeight : 0.3 pounds ItemName : Qrhky Mohs Hardness Test Kit for Rocks, 2-9 Hardness Testing Files, Minerals and Metals Test Kit with Storage Box and Test Samples, Suitable for Gemstones, Tiles, Floors, Glass, Minerals Etc ItemPackageDimensions_Height : 4.49 inches ItemPackageDimensions_Length : 13.1 inches ItemPackageDimensions_Width : 9.1 inches ItemPackageQuantity : 1 ItemTypeKeyword : hardness-testing-apparatus Manufacturer : Qrhky Material : plastic MeasurementAccuracy : +/-0.1% ModelNumber : GTJCQ-8 NumberOfItems : 16 NumberOfLithiumMetalCells : 1 PartNumber : GTJCQ-8 ProductDescription : Hardness Tester Rockwell can be used for gemstone, tile, floor, glass, mobile phone screen, mineral, concrete testing, etc. Specifications: Name: Water Hardness Tester Hardness Standard: 2&3, 4&5, 6&7, 8&9 Package Content: Suitcase*1, Hard Water Test Kit*8, Test Ore*8 Test Basis: Water Softener Testing Kit is based on the hardness of 10 different minerals, and uses materials of different hardness to simulate and replace minerals to make a scratch pen similar to minerals, which is used to detect the Mohs hardness of various material surfaces. The pen body is scratched and compared to determine its relative hardness value. The hardness pen number is [2-3][4-5][6-7][8-9] For example: No. 2 has no scratches and the hardness is 3; No. 9 has scratches and the hardness is 10. rock identification kit gemstone tester for all stones ProductSiteLaunchDate : 2024-10-12T06:48:22.718Z Size : 8.4X5.7X2.6cm SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 41114611