Shenzhen Fable Jewellery Technology Co., Ltd.
| Payment Terms | Western Union, T/T, or Paypal |
| Supply Ability | 1000 set per month |
| Delivery Time | 5 days |
| Packaging Details | A set in a gift box package |
| 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 |
| Brand Name | Fable |
| Model Number | FMH-5 |
| Place of Origin | Guangdong, China |
| Certification |
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Product Specification
| Payment Terms | Western Union, T/T, or Paypal | Supply Ability | 1000 set per month |
| Delivery Time | 5 days | Packaging Details | A set in a gift box package |
| 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 |
| Brand Name | Fable | Model Number | FMH-5 |
| Place of Origin | Guangdong, China | Certification | |
| 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
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
>5000000
Employee Number:
>50
Ecer Certification：
Site Member
Shenzhen Fable Jewellery Technology Co.,Ltd was established in 2006, who located in Shenzhen which is called Chinese Jewelry Capital. Shenzhen, with its unique geographical location and development advantages, is the largest international well-know jewelry manufacturing base and trade set ... Shenzhen Fable Jewellery Technology Co.,Ltd was established in 2006, who located in Shenzhen which is called Chinese Jewelry Capital. Shenzhen, with its unique geographical location and development advantages, is the largest international well-know jewelry manufacturing base and trade set ...
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