This plant effloresces only once during its life cycle . 这植物在其生活史中只开花一次。
2.
By infrared spectrum study , the limonite ( feooh nh2o ) can be considered the main colorating mineral in the yellow and red jadeite , and the hematite is another colorating mineral in the red jadeite . the difference of color tone is due to the n value in the molecular formula feooh nh2o and the content of crystal water and adsorbent water . the iron ion came from the effloresced and eroded rocks , and formed fe ( oh ) 3 colloid reacted with the surface water 周围矿床的风化蚀变为表生水提供了铁质，形成弱酸性的含fe ( oh ) _ 3胶体的水溶液，表生水流经翡翠矿石时， fe ( oh ) _ 3胶体附着在岩石的表面，经过脱水结晶和吸附，形成褐铁矿胶体，褐铁矿胶体沿裂隙或松散的矿物颗粒进入翡翠岩石中，逐渐累积沉淀，形成次生色层。
