Rutilated quartz is quartz crystal that have the mineral inclusions of rutile inside them. Collectively, the type of quartz with needle-like inclusions like rutile, asbestos, goethite, epidote, or hornblende in them are called sagenite. Rutile is just one of the many types of inclusions that are found in quartz, but it is common enough to be seen in many a specimen in crystal shops. On its own, rutile (TiO2) is mineral that crystallizes as elongated, prismatic crystals that are often striated. It is a very common mineral and therefore, often gets embedded in quartz. Normally, rutile occurs in quartz as
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