细晶石

细晶石是一种矿物。颜色为浅黄、红褐或黑色。立方晶系。分子为(Na,Ca)2Ta2O6(O,OH,F)。属于烧绿石组，出现于伟晶岩。构成钽矿。 莫氏硬度5.5。比重4.2-6.4。半透明至不透明的八面体晶体。折射率2.0-2.2。

英文名称microlite源自希腊文mikros意为"small"与lithos意为"stone"。

参考文献
Palache, C., H. Berman, and C. Frondel (1944) Dana’s system of mineralogy*, (7th edition), v. I, 748–757
*[http://webmineral.com/data/Microlite.shtml Webmineral data]
*[http://www.mindat.org/min-2705.html Mindat with location data]
*[http://rruff.geo.arizona.edu/doclib/hom/microlite.pdf Mineral data publishing PDF]
*Atencio, D., Andrade, M. B., Christy, A. G., Gieré, R., & Kartashov, P. M. (2010). The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48(3), 673-698.
*Andrade, M. B., Atencio, D., Menezes Filho, L. A., & Ellena, J. (2011). The crystal structure of a microlite-group mineral with a formula near NaCaTa2O6F from the Morro Redondo mine, Coronel Murta, Minas Gerais, Brazil (vol 49, pg 615, 2011). CANADIAN MINERALOGIST, 49(5), 1338-1338.