银元状，粒径极细，表面平滑，密度高，遮盖力强，仿似金属效果。
"Silver dollars" extremely thin particle, slippery surface, high density, strong coverage and similar to metallic effect.
考古队称现场的碎片规格、形状十分类似17世纪的小型金属枪。
The team said that the size and shape of the pieces looks very similar to the small iron guns of the 17th century.
玛瑙山铁锰多金属矿床产于棋梓桥组底部层位中，矿体呈似层状。
Manaoshan Fe Mn polymetallic ore deposit occurs in the bottom of Qiziqiao formation.
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