The non-contextual content of a WITSML Conventional Core. Top depth of core interval. Bottom depth of core interval. Date and time when coring commenced (cutting new core). Date and time when coring complete (end of cutting new core). Manufacturer core reference. Name of coring contractor. Name of analysis company. Core barrel type. Inner barrel used? Values are "true" (or "1") and "false" (or "0"). Core inner barrel type. Length of core barrel. Core bit type. Core bit outer diameter. Core cut diameter. Cored interval length. Length of core recovered. Calculate recovery (commonly in percent). Wellbore inclination over cored interval. True if the core can be re-oriented in space after extraction when a tool-face has been used. Values are "true" (or "1") and "false" (or "0"). Method to catch core - fiberglass barrel, conventional, etc. Preservation method description. Mud type in use when cutting core. Name of formation penetrated. Set of Geological intervals, descriptions, gas readings for the cored interval. General core description.