[KongchangAI]
Unverified75% confidenceDecision RuleTime unknown

硬度鉴别法:天然水晶莫氏硬度7,可划伤玻璃(硬度5.5);用碎块尝试划玻璃能留痕的是水晶,被玻璃划伤的可能是塑料或玻璃仿品(慎用于成品)

1
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75%
Confidence
Long-term
Relevance
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https://kongchang.com/claim/193160
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curl https://kongchang.com/api/v1/knowledge/claims/193160
MCP
get_claim(id=193160)