Mohs Hardness Test Pencil Set (4–10) by Rayner – Made in England

Light signs of age-related wear; unused item, exactly as pictured.

This professional Mohs hardness test pencil set (4–10) by Rayner is expertly manufactured in England and designed for accurate and reliable hardness testing of minerals and materials.

The set includes 7 stainless steel pencils, each measuring approximately 7 cm in length and tipped with a genuine mineral corresponding to the Mohs hardness scale. Each pencil is clearly etched with its hardness value for easy identification, ensuring precision and convenience during testing.

Covering hardness levels from 4 to 10, this set allows users to effectively determine the scratch resistance of unknown materials. The included minerals are:

• 4 – Fluorspar (Fluorite)
• 5 – Apatite
• 6 – Feldspar
• 7 – Quartz
• 8 – Topaz
• 9 – Corundum
• 10 – Diamond

Each set is neatly stored in a compact protective wallet, making it easy to transport and organize.

Ideal for geologists, gemologists, laboratories, educational use, and industrial applications, these hardness testing pencils provide a dependable and professional solution for material identification and analysis.

Key Features:

• Complete Mohs hardness scale set from 4 to 10
• Made in England by Rayner
• 7 stainless steel pencils with mineral tips
• Clearly etched hardness numbers for easy use
• Accurate testing of minerals and materials
• Supplied in a convenient storage wallet
• Suitable for professional, educational, and laboratory use