Jadeite Basics Understanding Acid-Etched Network Patterns
Want to know how to tell real jadeite from treated or fake ones? Here’s what to look for 👀
A-Grade Natural Jadeite (Untreated):
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The internal crystal structure shows a clear directional arrangement
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The texture appears compact and well-formed
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No fluorescent reaction under light
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No irregular network patterns (also known as acid-etching marks)
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Color transitions look natural and harmonious
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When lightly tapped, it produces a crisp, clear sound
B+C Treated Jadeite:
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The internal structure has been damaged by chemical treatment
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Crystal arrangement appears loose and disordered
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Irregular web-like patterns are visible — these are caused by acid soaking
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When viewed under a 45-degree light angle, the edges may show pale blue or purple fluorescence, a typical sign of resin injection
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Color transitions look unnatural, with darker pigment collecting in cracks and gaps due to dyeing
👉 These three signs are especially important when identifying B+C treated jadeite. Understanding them can help you avoid costly mistakes and make more informed choices.