Otavite grains are very tiny in size, being commonly only several microns, and the large ones are several tens of microns.

菱镉矿的晶粒微小，一般只有几个微米，大者几十微米，常与菱锌矿、 硫镉矿共生或伴生在一起，呈疏松集合体、皮壳或薄膜状产出。

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Otavite was discovered as early as 1951, but the present discovery of this mineral in the Nuwjiaotang cadmium-zinc deposit, Guizhou, is probably the first report of its discovery in China.

国外菱镉矿早在1951年前就已被发现，近期在贵州牛角塘镉锌矿床中发现的菱镉矿为中国首次报道。

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