Several important optical properties are applicable to minerals and gemstones, and can be very useful for gem identification.

Garnet PPL properties Relief: High positive Habit/Form: Garnets commonly occur as euhedral to subhedral dodecahedral {110} or trapezohedral {112} crystalss, which in thin section yield six- or eight-sided cross sections. Spessartine: From Spessart Mountains, Bavaria, Germany is manganese aluminium garnet, Mn 3 Al 2 (SiO 4) 3. With proper equipment, jewelers can easily distinguish a Ruby from Garnet or red glass, even if their outward appearance may be identical. White Light, or visible light, is a form of electromagnetic radiation (energy waves produced by the motion of an electric charge). It occurs most often in granite pegmatite and allied rock types and in certain low grade metamorphic phyllites. Prehnite: Meanings, Properties and Powers This is because, just like Shungite , it symbolizes courage, support, and strength. The garnets from mantle-derived rocks, peridotites, and eclogites commonly contain a pyrope variety. These minerals are found throughout the world in metamorphic, igneous, and sedimentary rocks. Garnet Physical and Chemical Properties The most normally encountered minerals in the garnet institution consist of almandine, pyrope, spessartine, andradite, grossular, and uvarovite. Garnet is the name used for a large group of rock-forming minerals.These minerals share a common crystal structure and a generalized chemical composition of X 3 Y 2 (SiO 4) 3.In that composition, "X" can be Ca, Mg, Fe 2+ or Mn 2+, and "Y" can be Al, Fe 3+, Mn 3+, V 3+ or Cr 3+.. They all have a vitreous luster, a obvious-to-translucent diaphaneity, a brittle tenacity, and a loss of cleavage. When you have the energies of Garnet working for you, you can make your success a reality. What is Garnet?