Petrography Petrography Petrography is a branch of petrology that focuses on detailed descriptions of rocks. Someone who studies petrography is called a petrographer. The mineral content and the textural relationships within the rock are described in detail. The classification of rocks is based on the information acquired during the petrographic analysis. Petrographic descriptions start with the field notes at the outcrop and include macroscopic description of hand specimens. However, the most important tool for the petrographer is the petrographic microscope. The detailed analysis of minerals by optical mineralogy in thin section and the micro-texture and structure are critical to understanding the
What the Health What the Health What the Health is a 2017 documentary film which critiques the health impact of meat and dairy products consumption, and questions the practices of the leading health and pharmaceutical organizations. Its primary purpose is to advocate for a plant-based diet. The documentary has been criticized by a number of medical doctors, dietitians, and investigative journalists for what they describe as confusing causation with correlation, cherry picking science studies, using biased sources, distorting study findings, and using "weak-to-non-existent data". Advertised as "The Health Film That Health Organizations Don't Want You To See", the film follows Kip Andersen as