埃洛石的形态有管状和球状之分,前者较常见,而后者则很少见。自50年代以来,日本、美国、新西兰、墨西哥等国的学者相继报道了埃洛石的发现。从这些资料看,球状埃洛石都存在于火山灰、浮石、火山碎屑等火山物质的比较年轻的风化物中。最近,我们对福建省明溪县橄榄玄武岩风化物上发育的红壤B层及潜育型水稻土潜育层的粘粒进行透射电镜观察 The shape of halloysite tubular and spherical points, the former is more common, while the latter is rare. Since the 1950s, scholars from Japan, the United States, New Zealand, Mexico and other countries have reported the discovery of hallo-rock. From these data, all of the globular halloysites are found in younger weathered materials such as volcanic ash, pumice, volcanic debris and other volcanic material. Recently, we observed the clay particles of the red layer B and the latent layer of the potential paddy soil developed on the olivine basalts in Mingxi County, Fujian Province, by transmission electron microscopy