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Hardness Pencil with Material of Natural stone for getting Hardness of gemstone

Hardness Pencil with Material of Natural stone for getting Hardness of gemstone

  • Hardness Pencil with Material of Natural stone for getting Hardness of gemstone
Hardness Pencil with Material of Natural stone for getting Hardness of gemstone
Product Details:
Place of Origin: Guangdong, China
Brand Name: Fable
Model Number: FMH-5
Payment & Shipping Terms:
Minimum Order Quantity: 1 set
Price: negotiation
Packaging Details: A set in a gift box package
Delivery Time: 5 days
Payment Terms: Western Union, T/T, or Paypal
Supply Ability: 1000 set per month
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Detailed Product Description
Material: Natural Stone Hardness Range: 5 To 9
Number 5: Apatite Number 6: Orthoclase
Number 7: Quartz Number 8: Topaz
Number 9: Corundum Product Name: Hardness Testing Pencil
High Light:

jewelry testing equipment

,

gemstone testing tools

Hardness Pencil with Material of Natural stone for getting Hardness of gemstone

Model No: FMH-5

 

Specification:

Technical Parameter

Size of the piece

10cm

Hardness Range

From 5 to 9

Material

Natural stone

Power supply

No need

 

Description and Usage:

 

Those minerals are mounted in five metal pole respectively,use the corner of those mineral to scratch the gemstone,you will get the hardness according to the nick you scratch,if there is a nick after you scratched,the sample's hardness is lower than the standard hardness pencil;if there is no nick after you scratched,that means the sample's hardness is higher than the standard hardness pencil.

 

Matters need attention:

 

1.use the indirect-vision method to estimate the hardness of the sample.

 

2.find a inconspicuous place,use the talc-l or plaster-2 to scratch the sample,if can't do,that means the sample's hardness is higher than the standard hardness pencil,so pls use the higher pencil to scratch,repetitive operation,if there is a shadow nick,that means the sample's hardness is amoust the same with the standard hardnedd pencil,then use the higher hardness pencil to scratch the gem,if there is a deep nick,means sample's hardness is lower than the standard hardness pencil.so in this way,we can get the hardness of gem or the scope of hardness.

 

3.when you scratch,don't too heave or too light,just proper vigor.

 

4.direct test method cost damage to the gem,so pls use it proper.generally speaking,we won't use this method to the finished gem.

 

Applications: Gemological Laboratory, Gemology school, Jewelry industrial

Hardness Pencil with Material of Natural stone for getting Hardness of gemstone 0Hardness Pencil with Material of Natural stone for getting Hardness of gemstone 1

Contact Details
Shenzhen Fable Jewellery Technology Co., Ltd.

Contact Person: Jolie Chow

Tel: +8613424293827

Send your inquiry directly to us
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