Applied to dendritic (branch-like) aggregates of minerals that are frequently secondary chemical precipitates, such as iron or manganese oxides (e.g. moss agate and mocha stone).
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。