Apatite and zircon are among the best-studied and most widely used accessory minerals for geochronology and thermochronology. Given that apatite and zircon are often present in the same lithologies. distinguishing the two phases in crushed mineral separates is a common task for geochronology. thermochronology. https://parisnaturalfoodes.shop/product-category/pro-c2000-powder/