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.
Desert Sage. Sages can also grow in desert biomes. These are the driest of all biomes, and the plants that grow here mostly include cacti, short grass and small bushes. Desert purple sage (Salvia dorrii) is native to the deserts of the western United States.esert Sage. Sages can also grow in desert biomes. These are the driest of all biomes, and the plants that grow here mostly include cacti, short grass and small bushes. Desert purple sage (Salvia dorrii) is native to the deserts of the western United States.