In order to ensure that your office is correctly billing modifiers, we encourage you to review the Blue Cross and Blue Shield of North Carolina (BCBSNC) Corporate Medical Policy addressing Modifier Guidelines, which was last revised in December 2013 and available online at: http://www.bcbsnc.com/assets/services/public/pdfs/medicalpolicy/modifier_ ...
Faden quartz is a descriptive term for a usually tabular group of quartz crystals with a white thread-like or string-like zone running through the interior. The term faden is a German word for thread. They are found in the Alpine region of Europe, Pakistan, Russia and Arkansas.
Quartz crystals (USDA) Quartz is a transparent or translucent form of pure silica, or silicon dioxide (SiO2). It is a major component of granite and makes up about 12% of the crust of the earth, but is less abundant in oceanic crust and the interior of the earth. Most sands are grains of quartz released by the erosion and weathering of granitic rocks.