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

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

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Ref: HARDNESS-2

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£96.00
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£96.00
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Pickup available from Quicktest (WD18 8JA)
Email us or call on 01923-220206 for appointment.

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

 

Free gift details

If you would like one of the following free gifts with this product, select one from “Select your free gift” above.

Hand Reader, large, adjustable, with four lights (lightmag) (RRP £4.92 )

Hanging Balance 100g. (Silver) (RRP £1.70 )

Stand Magnifier, 7X50 (7X mag / 50mm lens dia.) (RRP £3.75 )

QUESTIONS & ANSWERS

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  • Will the number 9 scratch a polished moissanite stone?

    Probably not, Moissanite is 9.4.

    But don't try, it might.  Then you will damage the stone, these are not for polished stones.