Every gemstone is different not only in the physical appearance but in the physical properties as well. The gemstones are made of different combinations of minerals. Multiple combinations drive up different physical and chemical properties of the gemstones in them. These properties affect the size, structure, reactions, colors and other features.
Color change is the optical phenomena in gemstones that let the stones to change colors under different lightening conditions. It happens due to certain changes in the composition of each gemstone. Alexandrite is the gemstone that demonstrates the perfect example of color change under certain conditions.
Sapphire is one of the rare gemstone made of minerals and takes millions of years to form. The rich blue hue and rarity turn this stone into a treasure. The origins of Sapphire are limestone and metamorphic rocks with less of silica and more of aluminum.
Ruby is made of corundum or aluminum oxide. It requires no presence of silica or iron and a high temperature to form in the earth crust. The gemstone origin in the spaces where there is a lot of aluminum and it is abundantly found in Asian region.
Emerald is cherished due to the beauty, color and historical origin. The high quality gems are commonly present in Egypt and Roman Empire anciently. As the time passes the reserves run, dry but the exploration exist and there are emeralds mines in Austria, India and Central Asia.
What is Astrology? Astrology is the learning of the actions and relative locations of heavenly bodies construed as having an impact on human matters and the real world. Astrological Gemstones Astrological stones are also referred to as Zodiac gemstones. Each zodiac sign is linked with a specific gemstone, with the idea that enables the people