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。

Manganese Oxide

氧化锰

MnO2

MnO₂

This sample of manganese oxide is displayed in the Smithsonian Museum of Natural History. Manganese oxide appears as a mineral form of manganese with the composition MnO2. The sample at left is about 20 cm across and is from Solnhofen, Bayern, Germany. This sample is described as dendritic crystal growth.

这种二氧化锰样品陈列在史密森尼自然历史博物馆中。二氧化锰以矿物形式存在，其化学式为MnO₂。左侧的样品宽约20厘米，来自德国巴伐利亚州的Solnhofen。该样品被描述为具有树根状晶体生长特征。

Manganese oxide is a synonym for pyrolusite according to Mindat.

根据Mindat，锰氧化物又称为赤铁矿。

Mindat: Manganese Oxide

Mindat: 锰氧化物
Minerals
矿物
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