Unverified75% confidenceDecision RuleTime unknown
东陵玉、玛瑙、玉髓等隐晶质常被染色处理，可用棉签蘸酒精擦拭观察是否掉色，或看裂隙处是否有颜色富集来辨别人工染色
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75%
Confidence
Long-term
Relevance
-
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Unverified染色水晶（尤其绿幽灵、蓝晶仿冒）遇丙酮或酒精棉擦拭可能掉色，缝隙处颜色堆积不均是染色特征；天然颜色分布随晶体结构自然过渡76% similarUnverified紫水晶天然色带分布不均、深浅有过渡；染色/辐照处理的紫水晶颜色均匀死板、集中在裂隙处，用棉签蘸酒精擦拭可能掉色（染色料）76% similarUnverified粉晶（芙蓉石）天然者多带絮状棉体、颜色偏淡且不均匀，市面颜色均匀鲜艳的深粉多为染色或人造，购买时看颜色是否过分饱和统一即可初步判断72% similarUnverified棉麻面料多次洗涤后颜色（尤其深色如藏青/黛色）易出现轻微褪色，购前需确认是否经过固色处理71% similarUnverified浅色/白色内壁珐琅(如象牙白)能清晰观察食材颜色和汤色变化便于判断火候，但长期使用茶垢油渍会导致内壁发黄染色；深色内壁耐脏但看不清食材状态70% similar
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