Tpnyd-10 Gemstones Mohs Hardness Tester

• Customization: Available
• After-sales Service: 1 Years
• Warranty: 1 Years
• Model NO.: TPNYD-10
• Transport Package: Wooden Case
• Specification: CE
• Trademark: TOPTESTER
• Origin: China
• HS Code: 84212990
• Production Capacity: 1000 Sets/Month

Product Description

 

Application:
The hardness of gemstones is closely related to its anti-wear properties and is an important factor in determining the value of gemstones. There are two types of gemstone hardness measurement: indirect visual estimation method and direct measurement method.

1. Indirect visual estimation method
The hardness of a gemstone can be reflected in the smoothness of the facets and the sharpness of the edges after processing. Under a magnifying glass, it can be seen that the facets of gemstones of hardness size are smooth, flat and sharp. Indirect visual inspection is a non-destructive approximate hardness identification method.

2, the direct measurement method
This method is based on the comparison of the engraving between the gemstone mineral to be tested and the standard hardness mineral. In 1982, German mineralogist Moss proposed a standard mineral with grades: talc-1, gypsum-2, calcite-3, fluorite-4, apatite-5, orthoclase-6, quartz- 7, Topaz-8, Corundum-9, Diamond-10.
The hardness gap between corundum and diamond is the largest.

Magellan Mohs hardness pen is the representative of Mohs hardness of talc-1, gypsum-2, calcite-3, fluorite-4, apatite-5, orthoclase-6, quartz-7, topaz-8, Corundum-9, diamond-10. kinds of natural ores are respectively inlaid on 10 pure stainless steel hardness pen metal pens, which are carefully crafted, refined and beautiful, strong and durable; then use the edges and corners of these ores to scribe the samples to be tested, according to the samples. The hardness of the tested sample is judged by whether there are scratches: if there are scratches, it means that the hardness of the sample is lower than that of the hardness pen; if it does not scratch, it means that the hardness of the sample is higher than that of the hardness pen.

3, the use of skills and precautions
1 Indirectly assess the hardness of the sample first;

2 Find an inconspicuous place, and mark the sample with a hardness pen that is 1 to 2 lower than the visual hardness level. If it does not move, it means that the hardness of the sample is higher than that of the hardness pen, and then use a higher hardness pen to inscribe the sample. Scratch, repeat the operation, if there are only slight traces, it means that the hardness of the sample is equivalent to the hardness of the hardness pen, and then use a higher hardness pen to scribe, repeat the operation, if there are traces, it means that the hardness of the sample is lower than the hardness The hardness of the pen, at this time, the hardness of the tested sample or its range can be judged;

3. Please handle it gently during use, pay attention to the moderate scribing force, neither too light nor too heavy, pay attention to maintenance for long-term use;
 

1. Because the direct scribing method is used to measure the hardness, it is destructive to the gemstones, so it is generally not allowed to use this method on the finished gemstones.

 

Density, refractive index, hardness of natural jade
Jade name	Density	Refractive index	Hardness	Jade name	Density	Refractive index	Hardness
Opal	2.15	1.45	5-6	rose pyroxene	3.5	1.733,1.747	5.5-6.5
sodalite	2.25	1.483	5-6	Rhodochrosite	3.6	1.597,1.817	3-5
natural glass	2.36	1.49	5-6	hydrocalcite	3.74	1.72	7-8
Xiuyu	2.57	1.560,1.570	2.5-6	malachite	3.95	1.655,1.909	3.5-4
chalcedony	2.6	1.535,1.539	6.5-7	smithsonite	4.3	1.621,1.849	4-5
alexandrite	2.64	10544,1.553	6.5-7	Hematite	5.2	2.940,3.220	5-6
marble	2.7	1.486,1.658	3	Silica Malachite	2.0-2.4	1.461,1.570	2-4
Dushan Jade	2.7	1.560,1.700	6-7	Shoushan Stone	2.5-2.7	1.56	2-3
lapis lazuli	2.75	General 1.50	5-6	bloodstone	2.53-2.74	1.53-1.59	2-3
talc	2.75	1.540,1.590	1	albite jade	2.60-2.63	1.52,1.54	6
turquoise	2.76	1.610,1.650	5-6	Quartzite	2.64-2.71	1.544,1.553	6.5-7
dolomite	2.86	1.505,1.743	3-4	Qingtian Stone	2.65-2.90	1.53,1.60	1-1.5
Nephrite jade (Hetian jade)	2.95	1.606,1.632	6-6.5	Grape Stone	2.80-2.95	1.616,1.649	6-6.5
Emerald	3.34	1.666,1.680	6.5-7	fluorite	3.18	1.434	4

After sale service
The warranty period is 24 months from commissioning acceptance date on. After the warranty period is over we provide lifelong maintenance and technical service.
* We guarantee the maintenance time no more than 3 working days and response time within 1 hour.
* We build instrument service profile for our clients to record the product service and maintenance conditions.
* After instruments start service, we will pay follow-ups to collect the service conditions.

Our company
Located at Chongqing city--a southwest electromechanical manufacturing center as well as national municipality, Chongqing TOP is a professional leading manufacturer and supplier of oil purifiers and various related testers. Our company consists of departments respectively for technological development, machinery manufacture, instrument manufacture and quality control etc.