Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable. 中英双语版:英文原文完整保留,中文紧随对应单元;术语采用 v20260916 确认表,自动语义审校结果可追溯。
Vivianite
维维安石
Vivianite is a phosphate mineral of iron. It has the composition Fe3(PO4)28H2O . These samples are on display in the Smithsonian Museum of Natural History. This sample measures about 6x8 cm and is from Huanuni mine, Oruro, Bolivia.