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西澳大利亚布罗克曼稀有金属矿化，是富含挥发份和不相容元素（例如Zr、IJf、Nb、Ta、Be、Y和REE及Ga等）的粗面岩岩浆发生早期火山碎屑喷发的结果。矿化呈三。粒状（＜20μm），是由于相对简单的岩浆前身矿物（如铌铁矿和钻石），在岩浆喷发后保存于灰流凝灰岩［奈厄比厄姆（Niobium）凝灰岩］中的岩浆期后富F溶液的作用下，发生蚀变和再活化的结果。球粒陨石标准化的REE分布模式显示，矿体强烈富集HREE。胶质锆石是HREE主要载体，浸染状氟碳铈矿（±氟碳钙铈矿和直氟碳钙铈矿）是LREE的载体，晚期方解石脉中的羟硅滚石是Be的载体。Ga赋存于基质K云母中。上覆于奈厄比厄姆凝灰岩的粗面岩流含有许多类似的矿石矿物，但含量略有不同。
Brockman, Western Australia Rare metal mineralization is the result of early volcanic debris from the facies magma enriched with volatile and incompatible elements such as Zr, IJf, Nb, Ta, Be, Y and REE and Ga, Eruption of the results. Three mineralization. Particulate (<20 μm) due to the relatively simple magmatic precursor minerals (eg, niobium and diamonds) were enriched in the magmatic phases of the gray-flow tuff [Niobium tuff] after magma eruption Solution, the results of alteration and reactivation. The normalized REE distribution pattern of chondrules shows that the ore body is strongly enriched in HREE. Gypsum zircon is the main carrier of HREE, disseminated bastnaesite (± bastnaesite and bastnaesite) are the carriers of LREE, and the hydroxysilicic stones in the late calcite veins are the carriers of Be. Ga occurs in matrix K mica. The upwelling overlying the Niuebigem tuff contains many similar ore minerals, but with slightly different contents.