A mineral is a naturally occurring substance, representable by a chemical formula, that is usually solid and inorganic, and has a crystal structure.It is different from a rock, which can be an aggregate of minerals or non-minerals and does not have a specific chemical composition.ommon distinguishing characteristics include crystal structure and habit, hardness, lustre, diaphaneity, colour, streak, tenacity, cleavage, fracture, parting, and specific gravity. More specific tests for minerals include magnetism, taste or smell, radioactivity and reaction to acid.
Define staphylo-. staphylo- synonyms, staphylo- pronunciation, staphylo- translation, English dictionary definition of staphylo-. pref. 1. Cluster; resembling a cluster: staphylococcus. 2. The uvula: staphyloplasty. combining form 1. uvula: staphyloplasty. 2. resembling a bunch of...
Staphylococcus epidermidis (staph epidermidis, S.epidermidis / epidermis) is a part of a normal skin flora, and it is often attached to the upper layer of the skin (epidermis) or mucosa, without causing any symptoms (staph epidermidis carrier state).taph bacteria are noted as coagulase negative, if they do not coagulate during coagulase enzyme test. All staphylococci causing disease in human, (except Staphylococcus aureus), are coagulase negative and include: 1  Staphylococcusepidermidis (by far the most common CNS).