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HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3

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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 not.  Limitations Hardness varies from sample to sample, and it can also be different in different directions. These are for testing minerals, e.g. out in the field. They are not suitable for use on cut gemstone (jewellery) - you scratch the stone, the stone becomes worthless and/or your customer sues you.   Moe The  Moe scale of hardness goes like this: 1 Talk 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond

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Displaying all 4 reviews
Trusted Customer
1 year ago
Date of purchase: 20/11/2022
HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3
Seems to be as good as expected, but I would need more time before being absolutely affirmative.
Trusted Customer
1 year ago
Date of purchase: 20/06/2022
HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3
Good quality mineral testing kit (for about a 1/3 price of others).
CM
Colin Marshall
2 years ago
Date of purchase: 14/06/2021
HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3
The item is quite expensive for what it is but I have seen it very much more costly elsewhere. I assume this is because its a niche item. +The tools themselves are well made and do seem to be correct
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TM
Tim Moore
3 years ago
Date of purchase: 01/04/2021
HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3
Good quality at a reasonable price
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Unit 7, Park House,, 15-19 Greenhill Crescent, WATFORD, WD18 8PH, United Kingdom
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