As with other chemical reactions, the reaction rate and efficiency of PCR are affected by limiting factors. 1  Thus, the entire PCR process can further be divided into three stages based on reaction progress: 2  Exponential amplification: At every cycle, the amount of product is doubled (assuming 100% reaction efficiency).
Quick Answer. Aquamarine forms when magma under the Earth's crust interacts with mineral-rich rocks under mountain ranges. The magma cools as it enters fissures and crevasses of rocks called pegamites. The minerals in the pegamites heat up when they interact with the magma, forming the gemstone. Continue Reading.
Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine. Tourmalines have a variety of exciting colors with one of the widest color ranges of any gem. Named after seawater, aquamarineâs fresh watery hue is a cool plunge into a refreshing pool. Rose quartz is a quartz variety that gets its name from its delicate pink color. Dazzling brilliance.