Gemstone usually found in. For example, diamonds, which have a cubic crystal system, are often found as octahedrons. Gemstones are classified into different "groups", "species", and "varieties". For example, ruby is the red variety of the species corundum, while any other color of corundum is considered sapphire. Other examples are the emerald (green), aquamarine (blue), red beryl (red), goshenite (colorless), heliodor (yellow) and morganite (pink), which are all varieties of the mineral species beryl. Gems are characterized in terms of refractive index, dispersion, specific gravity, hardness, cleavage, fracture and luster. They may exhibit pleochroism or double refraction. They may have luminescence
Aquamarine (film) accidentally slips into the local beach club swimming pool and notices something strange under the water with blue hair and a tail. She tries to tell herself it was only a figment of her imagination since she's been afraid of water ever since her parents' deaths, but Hailey convinces Claire to come back and explore it later that night. When they do, they find a mermaid named Aquamarine (Sara Paxton). They instantly become friends and Aquamarine tells the girls that she needs to prove to her father that true love exists or she'll be made to get married to a