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.
MARCH BIRTHSTONE - AQUAMARINE. The gemstone aquamarine is the blue, or perhaps more correctly, blue-green or aqua variety of the mineral beryl. Aquamarine is the birthstone for March, and it is commonly recognized as the Zodiac stone for the constellation of Scorpio (although it is usually referred to as beryl in this regard). As beryl, aquamarine is mentioned in the Bible. Aquamarine jewelry is associated with beauty, honesty, loyalty, and happiness.