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 (from the Greek: ÏÏÎ±ÏÏÎ»Î®, staphylÄ, grape and ÎºÏÎºÎºÎ¿Ï, kÃ³kkos, granule) is a genus of Gram-positive bacteria. Under the microscope, they appear round , and form in grape-like clusters. The Staphylococcus genus includes at least 40 species.