How to interpret the appraisal certificate of Shoushan Stone Identification Center
The valid data given by the certificate includes:
Mohs hardness 2.6,
Refractive index 1.56
Density 2.7
Quality 23.2g
Appearance feature description:
Waxy luster
Cryptocrystalline structure
None of the above four valid data and two characterizations prove that the identification results are unique to Dickel or Pyrophyllite produced only in Shoushan, Fuzhou. According to mineral petrology, dickite or pyrophyllite found in all regions of the earth have the above six data and characteristics.
The National "Measurement Law" stipulates: Fair data belonging to the scope of adjustment of the "Measurement Law" has legal effect. The agency passed the measurement certification, and the above data covered it, which is fair data. These fair data meet all dickpetite or pyrophyllite that enters China and abroad.
The above two characteristics descriptions, although belonging to mineral petrology, are characteristic of dickite or pyrophyllite, but are not within the scope of adjustment of the Metrology Law, and are not fair data and have no legal effect.
The certificate also lists the national standards for the identification criteria, namely GB/T 16552 "Jewelry and Jade Name" and GB/T 16553 "Jewelry and Jade Identification", and the national standard "Jewelry and Jade Name" stipulates: Baoyushi includes the name of the place of origin. The place of origin does not have geographical significance.
In summary, the certificate of Shoushan Stone or Tian Huangshi issued by the agency has legal effect, but its origin is not necessarily the Fushan Shoushan Mining Area. If an institution advertises that it can prove that the jewellery and jade, including the origin of Shoushan Stone, may be experience or feeling, the origin of the result does not have legal effect. Therefore, the identification result in the above picture is Shoushan Stone, which is not necessarily the Shoushan of Fuzhou. The nominal government authority does not comply with the fairness statement of the laboratory's measurement certification. A formal accreditation body cannot write the word "government authority."
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