用于指示天然琥珀的测试: Floats in the salt water, sinks in fresh water; Acetone resistant; Has characteristics of pine resin odor if heated; Has a characteristic color under UV rays. Colour enhanced.
用于指示天然琥珀的测试: Floats in the salt water, sinks in fresh water; Acetone resistant; Has characteristics of pine resin odor if heated; Has a characteristic color under UV rays. Colour enhanced.