{"product_id":"laboratory-certification-service","title":"Laboratory Certification Service","description":"\u003ch2 data-end=\"340\" data-start=\"270\"\u003eIndependent Laboratory Certification – Technical Standard Reference\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlease note all certification are completed in China. It would take 2 working days for the testing then shipment with the product from our warehouse in China. It will take 5 - 10 working days to reach the overseas destination.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-end=\"476\" data-start=\"342\"\u003eOptional certification is issued by \u003cstrong data-end=\"426\" data-start=\"378\"\u003eZhongwei Gemological Laboratory (中维珠宝玉石检测中心)\u003c\/strong\u003e in accordance with the Chinese national standard:\u003c\/p\u003e\n\u003cp data-end=\"476\" data-start=\"342\"\u003e \u003c\/p\u003e\n\u003cp data-end=\"523\" data-start=\"478\"\u003e\u003cstrong data-end=\"523\" data-start=\"478\"\u003eGB\/T 16552 — Gems and Jade — Nomenclature\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"699\" data-start=\"525\"\u003eUnder this standard, nephrite (commercially referred to in China as “Hetian Jade”) is defined strictly on mineralogical and structural criteria rather than geographic origin.\u003c\/p\u003e\n\u003cp data-end=\"800\" data-start=\"701\"\u003eTo qualify as nephrite under GB\/T 16552, the material must satisfy the following core requirements:\u003c\/p\u003e\n\u003cp data-end=\"800\" data-start=\"701\"\u003e \u003c\/p\u003e\n\u003ch3 data-end=\"830\" data-start=\"802\"\u003e1. Mineral Composition\u003c\/h3\u003e\n\u003cp data-end=\"1025\" data-start=\"831\"\u003eThe material must consist predominantly of tremolite–actinolite amphibole minerals, typically ≥95% by composition.\u003cbr data-end=\"948\" data-start=\"945\"\u003eIdentification is confirmed through spectroscopic and mineralogical analysis.\u003c\/p\u003e\n\u003cp data-end=\"1025\" data-start=\"831\"\u003e \u003c\/p\u003e\n\u003ch3 data-end=\"1067\" data-start=\"1027\"\u003e2. Microstructural Characteristics\u003c\/h3\u003e\n\u003cp data-end=\"1291\" data-start=\"1068\"\u003eThe internal structure must exhibit the characteristic interwoven, fibrous or felted aggregate texture of nephrite.\u003cbr data-end=\"1186\" data-start=\"1183\"\u003eThis dense microcrystalline structure is responsible for nephrite’s exceptional toughness and durability.\u003c\/p\u003e\n\u003cp data-end=\"1335\" data-start=\"1293\"\u003eAdditional laboratory evaluation confirms:\u003c\/p\u003e\n\u003cp data-end=\"1450\" data-start=\"1339\"\u003e- Gemological properties consistent with tremolite-based nephrite (e.g., refractive index and specific gravity)\u003c\/p\u003e\n\u003cp data-end=\"1560\" data-start=\"1453\"\u003e- Natural and untreated status, with no evidence of polymer impregnation, dyeing, or artificial enhancement\u003c\/p\u003e\n\u003cp data-end=\"1590\" data-start=\"1562\"\u003e \u003c\/p\u003e\n\u003cp data-end=\"1590\" data-start=\"1562\"\u003eTesting methods may include:\u003c\/p\u003e\n\u003cp data-end=\"1641\" data-start=\"1593\"\u003e- Fourier-transform infrared spectroscopy (FTIR)\u003c\/p\u003e\n\u003cp data-end=\"1683\" data-start=\"1644\"\u003e- Raman spectroscopy (where applicable)\u003c\/p\u003e\n\u003cp data-end=\"1714\" data-start=\"1686\"\u003e- Polarized light microscopy\u003c\/p\u003e\n\u003cp\u003e- Standard gemological testing procedures\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr data-end=\"1763\" data-start=\"1760\"\u003e\n\u003ch3 data-end=\"1810\" data-start=\"1765\"\u003e\u003c\/h3\u003e\n\u003ch3 data-end=\"1810\" data-start=\"1765\"\u003ePosition within the International Context\u003c\/h3\u003e\n\u003cp data-end=\"2042\" data-start=\"1812\"\u003eNephrite deposits occur globally, including regions such as China, Russia, Canada, and Australia. Under GB\/T 16552, classification is based solely on mineralogical composition and structural characteristics, not geographic origin.\u003c\/p\u003e\n\u003cp data-end=\"2212\" data-start=\"2044\"\u003eAustralian nephrite, when meeting the above mineralogical and structural criteria, may therefore be identified and certified under the same national standard framework.\u003c\/p\u003e\n\u003cp data-end=\"2212\" data-start=\"2044\"\u003e \u003c\/p\u003e\n\u003chr data-end=\"2217\" data-start=\"2214\"\u003e\n\u003cp data-end=\"2245\" data-start=\"2219\"\u003e \u003c\/p\u003e\n\u003cp data-end=\"2245\" data-start=\"2219\"\u003eEach certificate includes:\u003c\/p\u003e\n\u003cp data-end=\"2298\" data-start=\"2248\"\u003e- Material identification (Nephrite \/ Hetian Jade)\u003c\/p\u003e\n\u003cp data-end=\"2321\" data-start=\"2301\"\u003e- Colour description\u003c\/p\u003e\n\u003cp data-end=\"2346\" data-start=\"2324\"\u003e- Treatment disclosure\u003c\/p\u003e\n\u003cp data-end=\"2366\" data-start=\"2349\"\u003e- Item photograph\u003c\/p\u003e\n\u003cp data-end=\"2408\" data-start=\"2369\"\u003e- Unique report number for verification\u003c\/p\u003e\n\u003cp data-end=\"2587\" data-start=\"2410\"\u003eThis certification provides independent mineralogical documentation for collectors, institutions, and clients seeking formal verification under recognised gemological standards.\u003c\/p\u003e","brand":"AUSTRALIAN JADE","offers":[{"title":"Default Title","offer_id":49400794185965,"sku":null,"price":10.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7532\/2093\/files\/certificateenglish1.jpg?v=1771734044","url":"https:\/\/checkouts.australian-jade.com.au\/products\/laboratory-certification-service","provider":"AUSTRALIAN JADE","version":"1.0","type":"link"}