Ametrine is formed when tiny iron particles locked inside the matrix of the quartz crystals begin to oxidize at different rates. This is usually due to differences in temperature between the two different parts of the stones. As you can imagine, this is a very unique and unusual situation to occur in the natural world!
Desert: Plants Short grasses, sagebrush, creosote bushes, and cacti are just a few of the plants that can be found in the desert. Plant abundance and variety are determined by the geographic location of the desert.esert: Plants Short grasses, sagebrush, creosote bushes, and cacti are just a few of the plants that can be found in the desert. Plant abundance and variety are determined by the geographic location of the desert.
Ocotillo (Fouquieria splendens) are one of easiest plants to identify in the desert. They are a large shrub with long cane-like unbranched spiny stems that grow from a short trunk.cotillo (Fouquieria splendens) are one of easiest plants to identify in the desert. They are a large shrub with long cane-like unbranched spiny stems that grow from a short trunk.