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. Staphylococcus (pl. Staphylococci) is a genus of spherical, gram-positive bacteria which occur in grape-like clusters. They are natural part of skin flora in most mammals and birds; they normally colonize the upper respiratory, alimentary and urogenital tracts.They are also the most common cause in pus-forming infections.taphylococcus. Staphylococcus (pl. Staphylococci) is a genus of spherical, gram-positive bacteria which occur in grape-like clusters. They are natural part of skin flora in most mammals and birds; they normally colonize the upper respiratory, alimentary and urogenital tracts.