Ask AI: conclude 4 sentences ANALYSIS OF X-RAY POWDER DIFFRACTION PATTERN of tungsten was found to be primitive and calcium fluoride fcc.

Upon analysis, the X-Ray Powder Diffraction pattern unveils that tungsten possesses a primitive crystal structure, denoting a simple unit cell without a centering atom. On the other hand, Calcium Fluoride follows a face-centered cubic (FCC) structure, indicating that each unit cell has atoms at its vertices and center of faces. This distinction in crystal structure considerably influences their physical properties and is key for different applications. Thus, understanding these different structures provides vital data for the planning and application of these materials in relevant engineering and scientific fields.