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!
Xerophytes are plants that have adapted to live in the dry, hot conditions of the desert. These plants have a waxy outer coating to help the plant retain moisture, along with other adaption of their seeds, roots and leaves to help them thrive and retain moisture for extended periods until water is available.erophytes are plants that have adapted to live in the dry, hot conditions of the desert. These plants have a waxy outer coating to help the plant retain moisture, along with other adaption of their seeds, roots and leaves to help them thrive and retain moisture for extended periods until water is available.
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.