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 Marigold. The desert marigolds belong to the aster family and are commonly found in the south western parts of the US and in Mexico. They are annual and short lived perennial plants which grow between 10 and 30 inches and have very hairy leaves.. The desert marigolds belong to the aster family and are commonly found in the south western parts of the US and in Mexico. They are annual and short lived perennial plants which grow between 10 and 30 inches and have very hairy leaves.
Some desert plants are not as well known as cacti and succulents, but are nevertheless very common in desert environments. Many play a crucial role in the desert ecosystems. Trees such as the juniper, mesquite and palo verde provide shade for desert animals.The leaves of the creosote bush, a native desert plant, have antiseptic qualities and were used by Native American tribes in the Southwest United States.he desert can be a brutal environment for plants, animals and humans. Plants have made fascinating adaptations to the arid desert climate in order to continue thriving in its extreme conditions.