Packaging Details
- Unit Type:piece
- Package Weight:2.0kg (4.41lb.)
- Package Size:20cm x 10cm x 10cm (7.87in x 3.94in x 3.94in)
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Mohs / Mohs hardness pen 17 (1-10, half) jewel identification supplies
1----Talcum TALC
2----Gypsum GYPSUM
2.5---- TRIDACNA
3----Calcite CALCITE
3.5---- malachite MALACHITE
4----Fluorite FLUORITE
4.5---- fisheye APOPHYLLITE
5----Apatite APATITE
5.5---- Obsidian OBSIDIAN
6----Orthosite ORTHOCLASE
6.5---- emerald JADEITE
7----Quartz QUARTZ
7.5---- emerald EMERALD
8----Topaz TOPAZ
8.5---- synthesis of cubic zirconia CUBIC ZIRCONIA
9----Corundum CORUNDUM
10--Diamond DIAMOND
The hardness of gemstones is closely related to their antiwear properties, and is an important factor determining the value of gemstones. There are two kinds of determination of hardness of jewels, indirect and direct methods.
Morse / Mohs hardness pen is used in Mohs / Mohs hardness tester.1----Talcum TALC,2----Gypsum GYPSUM,3----Calcite CALCITE,4----Fluorite FLUORITE,5----Apatite APATITE,6----Orthosite ORTHOCLASE,7----Quartz QUARTZ,8----Topaz TOPAZ,9----Corundum CORUNDUM,10--Diamond DIAMOND
8.5-- synthesis of cubic zirconia CUBIC ZIRCONIA,
7.5--- emerald EMERALD,
6.5--- emerald JADEITE,
5.5----- Obsidian OBSIDIAN,
4.5--- fisheye APOPHYLLITE,
3.5--- malachite MALACHITE,
2.5--- TRIDACNA
SeventeenThe hardness of the sample is determined by the scratch on the sample. If the scratch is left, the hardness of the sample is lower than that of the hardness pen. If the scratch is not moved, the hardness of the sample is higher than that of the hardness pen.
MOS / MoUse guide for hardness hardness pen
The hardness of gemstones is closely related to their antiwear properties, and is an important factor determining the value of gemstones. There are two kinds of determination of hardness of jewels, indirect and direct methods.
Indirect estimation method
The hardness of gemstones can be reflected in the smoothness of the facets and the sharpness of edges. Under the magnifying glass, we can see that the harder gemstones have smooth and flat facets and sharp edges than the harder gemstones. Indirect vision method is a nondestructive method for identifying similar hardness.
Two. Direct measurement method.
This method is based on the comparison between the gemstone minerals and the standard hardness minerals. In 1982, German mineralogist Moss put forward ten standard hardness minerals, which are talc-1, gypsum-2, inkstone-2.5, calcite-3, malachite-3.5, fluorite-4, fisheye-4.5, apatite-5, obsidian-5.5, orthoclase-6, jadeite-6.5, quartz-7, emerald-7.5, topaz-8, synthetic cubic zirconia-8.5. , corundum -9, diamond -10. This standard is called the Mohr hardness tester. In fact, the hardness difference between adjacent minerals is not the same, but the hardness difference between diamond and corundum is the biggest.
This FMH-5 hardness pen is made by inserting apatite-5, orthoclase-6, quartz-7, topaz-8 and corundum-9 ores into five metal poles, and using the edges and corners of these ores to mark the sample, the hardness of the sample can be judged according to whether there are scratches on the sample. The hardness of the pen is lower than that of the hardness pen. If the pen does not scratch, the hardness of the sample is higher than that of the hardness pen.
Three, using skills and matters needing attention
1., the hardness of samples should be estimated indirectly.
2. Find an inconspicuous place and mark the sample with a pen with a hardness lower than visual hardness grade 1 to 2. If the pen does not scratch, it shows that the hardness of the sample is higher than the hardness of the pen. Then scratch it with a higher hardness pen and repeat the operation. If there are only slight marks, it shows that the hardness of the sample is equivalent to that of the hardness of the pen, and then use a higher hardness pen. If the scratch is left, the hardness of the sample is lower than that of the hardness pen, then the hardness of the sample or its range can be judged.
3. attention should be paid to moderate intensity, neither too light nor too heavy.