Discolored garnet: In recent decades, garnets are known to become blue under artificial light. In 2007, a blue garnet flashes purple in incandescent light was found in Madagascar. These chameleons are mixtures of pyrope-spesartite. Some idaho garnet stones have a strong color shift from red to fuchsia. These are mixtures of Armangine-Pyropes. Although there are considerable differences, Garnet has a common level at the molecular level For those without a scientific tendency, the visualization here is not scientifically strict, but that is to explain this point It may be helpful. If your hand is a model of garnet molecules, all garnets share an atomic array represented by your palm. However, the atoms represented by the fingers are interchangeable. In other words, different atoms can get on your fingers while the palm remains the same. Whenever you change chemical reaction you will have different species
Jewelry scholars know that garnet mixture is very important. Today known garnet shows considerable diversity amongst their mixtures. For identification purposes, unless it is a common species, the standard way is to name the two main species garnet. Please be aware that garnet is not a simple two minerals. In the past, garnet was categorized by chemical composition, but even now it is mentioned like this. Garnets containing Al (aluminum) in the B site of the chemical formula are called pilar sites (for pyrope, almandine, and spessartite). Garnet with Ca (calcium) at position A is called Ugrandite (uvarovite, grossular and and radite).
Garnet can also be used to define the metamorphic phase of rock. For example, eclogite can be defined as a rock of basalt composition, but mainly consists of garnet and onfasite. Garnet including many pyropes is limited to relatively high pressure metamorphic rocks such as lower crust and metamorphic rocks in the mantle. Peridotite may include plagioclase, aluminum-rich spinel, or garnet-rich garnet, each of the three minerals has a pressure-temperature range and can be combined with mineral and olivine. Stone balance: I list three pressures in order to increase the stability of the combination of peridotite minerals. Therefore, garnet peridotite must be formed deeply in the Earth. Pomegranate olivine has a depth of more than 100 km (62 miles) of kimberlite, and garnet stones from these dispersed garnet stones are used as minerals for Kimberlite in diamond exploration.