HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3 Magnification_Multi magnification Refractometer (optical not electronic) (Refract-L)

Refractometer (optical not electronic) (Refract-L)

but it will not give a "guaranteed" answer

Overall we think they last well

There are 381 pages of marks by country (alphabetically)

I don't do surgical operations

HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3 Magnification_Multi magnification Refractometer (optical not electronic) (Refract-L)Summary Set of ten hardness testers. 8 hardness picks ("pencils") from No. 2 to No. 9. 1 Glass plate (hardness 5. 5) 1 Brass plate (hardness 3. 5) Also 1 streak plate (to test a mineral's streak colour) 1 magnet 1 polishing stone to keep the tips sharp Each 'pencil' has a tip of a different hardness from No. 5 to No. 9 on the Moe scale of hardness (see 'Further Information'). Is it easy to use? Yes. See which will scratch your sample and which will