This tiny cluster of bacteria is methicillin-resistant Staphylococcus aureus (MRSA), seen under a microscope. This strain of the common staph bacteria causes infections in different parts of the body -- including the skin, lungs, and other areas. MRSA is sometimes called a superbug because it doesnât respond to many antibiotics. Though most MRSA infections are minor, some can be life-threatening.
Granite is an igneous rock that injects, or intrudes, as magma into Earth's crust and then cools. It consists of four main mineral compounds. Two of these are types of feldspar, a group of silica compounds that constitute the most abundant mineral group on Earth.ranite is an igneous rock that injects, or intrudes, as magma into Earth's crust and then cools. It consists of four main mineral compounds. Two of these are types of feldspar, a group of silica compounds that constitute the most abundant mineral group on Earth.
Granite being a natural stone is composed of many different minerals, and iron may be one of them. Untreated (non-resin sealed) granite is more likely to exhibit rust staining than resin-sealed granite. However, even resin-sealed slabs and tiles can rust if not properly protected using a quality stone impregnator.