《观赏石鉴评标准》将观赏石分为五种基本类型,即造型石类,图纹石类、矿物类、化石类和特种石类。通常情况下这些类别的区分并不困难,甚至是一目了然,造型奇异的是造型石,以图案欣赏为主的是图纹石,形态呈规则几何体的是矿物晶体等……但对于某些成因复杂的石品来说,有时 “Appreciation Criteria for Ornamental Stone” will be divided into five basic types of ornamental stones, that is, the type of stone, pattern stone, minerals, fossils and special stone. Under normal circumstances, the distinction between these categories is not difficult, even at a glance, strange shape modeling stone to pattern appreciation is the pattern stone, the morphology of the regular geometry of mineral crystals, etc. ... but for some reasons complex Stone goods, sometimes