"Diorite" Natural Recordings by Native Speakers
Diorite is a type of igneous rock that is coarse-grained, meaning it is composed of large crystals visible to the naked eye. It is typically black or dark gray in color and has a rough, porous texture. Diorite is a mixture of the minerals feldspar, pyroxene, and amphibole, with quartz and hornblende being less common.
Dioptry refers to the science of measuring the refractive indices and powers of lenses to correct vision defects such as nearsightedness, farsightedness, astigmatism, and presbyopia. The term is often used interchangeably with optometry, which is the practice of optometry, particularly in the field of eyeglasses and contact lens prescriptions.