Crystal Structure Studies of Vanadium Minerals

许多人认为，范恩蒂是最难对付的因素。 由于其地壳丰度低， 在地质条件下以三价态存在 条件 钒矿通常结晶不良， 以及适合晶体结构的样品的分离 历史证明，研究是困难的;因此，我们的知识， 钒的晶体化学行为没有跟上 其他矿物。 这项研究将产生 几种钒的晶体结构解决方案或细化 矿物及相关矿产。第一个会是主角 磷灰石，第二个brackebuschite和gamagarite，最后一个 该项目的一部分将是晶体的测定 沸石结构，一种高温钒矿物。

Vanadium is considered by many to be the most difficult element to characterize geochemically because of its low crustal abundance and its existence in three valence states under geologic conditions. Vanadium minerals are typically poorly-crystallized, and its isolation of samples suitable for crystal structure studies has historically proved difficult; thus, our knowledge of the crystal-chemical behavior of vanadium has not kept pace with other mineral groups. The research proposed will produce crystal structure solutions or refinements of several vanadium minerals and related minerals. The first will be the lead apatites, the second brackebuschite and gamagarite, and the final portion of the project will be the determination of the crystal structure of ziesite, a high-temperature vanadium mineral.