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!
Most desert species have found remarkable ways to survive by evading drought. Desert succulents, such as cacti or rock plants (Lithops) for example, survive dry spells by accumulating moisture in their fleshy tissues.ost desert species have found remarkable ways to survive by evading drought. Desert succulents, such as cacti or rock plants (Lithops) for example, survive dry spells by accumulating moisture in their fleshy tissues.
Herbivores in the Desert In the desert there are many smaller animals that eat only plants. There are many species of small rodents in the desert; some of these animals are kangaroo rats and mice.