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- Contact Person : Ms. Zhu Guiyu
- Company Name : Zhangzhou Sino Science & Technology Co., Ltd.
- Tel : 86-596-2292900
- Fax : 86-596-2621858
- Address : Fujian,Zhangzhou,Xianjing Industrial Park, Shiting Town ,Zhang Zhou City ,Fujian province
- Country/Region : China
- Zip : 363000
Hardness Pencil jewelly instruments
Product Detailed
Related Categories:Jewelry Tools & Equipment
Hardness pencil is a good tool for gemstones.it is used to test the gemstone's hardness.
Product Name: Hardness Pencil
The scale in increasing order of resistance to abrasion
1. TALE
2. GYPSUM
3. CALCITE
4. FLUORITE
5. APATITE
6. ORTHOCLASE
7. QUARTZ
8. TOPAZ
9. CORUNDUM
10. DIAMOND
Hardness Pencil jewelly instruments
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