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.
Polished granite has a bright, reflective sheen. Honed granite is a slab on which the polishing process was stopped before buffing to a bright shine. This granite normally has a matte or gentle sheen and is often used for high-traffic areas such as foyer floors or stairs, although it is suitable for countertops.olished granite has a bright, reflective sheen. Honed granite is a slab on which the polishing process was stopped before buffing to a bright shine. This granite normally has a matte or gentle sheen and is often used for high-traffic areas such as foyer floors or stairs, although it is suitable for countertops.