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!
The Barrel cactus is found in the Mojave, Sonora, and the Chihuahua deserts. These deserts are found in the land of Speedy and the Roadrunner: Baja, Arizona, California, Texas, and Central Mexico.The barrel cactus grows in the desert washes and slopes, but can also be spotted growing along canyon walls.hese deserts are found in the land of Speedy and the Roadrunner: Baja, Arizona, California, Texas, and Central Mexico. The barrel cactus grows in the desert washes and slopes, but can also be spotted growing along canyon walls.
Plants that live in the deserts and plants that live in the Tundra  have commonalities and differences. One commonality is that they  have both learned to adapt to very hars â¦ h climates. One difference  is that Tundra plants are adapted to extreme cold, while desert  plants are adapted to extreme heat. 1 person found this useful.