Mohs Hardness Testing Pens – Set and Accessory Options

Compare the scratch hardness of a mineral sample with Mohs testing pens, choosing the complete set or the accessory option you need.

✅ Narrow down surface hardness - The listed test grades from 2 to 9 support scratch comparisons.

✅ Order the part you need - Separate set and accessory choices let you match the purchase to your tools.

A Practical Starting Point for Mineral Comparisons

When examining an unfamiliar specimen, a scratch comparison gives you another observable characteristic to record alongside its appearance. Use an appropriate sample area because the test leaves a mark.

Work through the relevant test grades and note whether the sample surface scratches. The result concerns surface scratch hardness; it does not identify a material on its own.

Technical details

• Listed grades: Mohs 2-9.
• Listed pen material: stainless steel.
• Package varies: whole set or selected accessories.

Select the testing set or accessory for your next sample comparison.