不是開采就浸在油裏,要切割看成色
祖母綠因為結構和開采方式,原石多有裂易碎,添加與之折射率相近的“油”以增加成色和牢固
所有跟帖:
• 同意你。開釆後就放油裏也同意,因為易碎 -螺絲螺帽- ♀ (0 bytes) () 10/17/2019 postreply 13:40:01
• 同意你。開釆後就放油裏也同意,因為易碎 -螺絲螺帽- ♀ (0 bytes) () 10/17/2019 postreply 13:40:01
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