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。

Serandite

赛兰石

Na(Mn,Ca)2Si3O8 (OH)

Na(Mn,Ca)₂Si₃O₈(OH)

Serandite is a silicate which contains manganese with composition Na(Mn,Ca)2 Si3O8(OH). This sample is about 13x16 cm and described as Serandite with gray liefite and dated at 125 milion years. It is from Mont St Hilaire, Quebec, Canada. It is on display at the Smithsonian Museum of Natural History.

Serandite是一种含锰的硅酸盐，其化学式为Na(Mn,Ca)₂Si₃O₈(OH)。该样本尺寸约为13×16厘米，被描述为Serandite，并含有灰色的liefite，其年代约为1.25亿年。它产自加拿大魁北克省的Mont St Hilaire。该样本现陈列于史密森尼国家自然历史博物馆。

Serandite forms triclinic crystals with hardness 4 - 5.5.

瑟兰石形成三斜晶系，莫氏硬度为4-5.5。

Mindat: Serandite

Mindat: Serandite（专名或术语）
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