QFL
QFL are rocks, either igneous, sedimentary, or metamorphic, and sands that are counted to be quartz (Q), feldspar (F), and/or lithic fragments (L). One of the most counted rocks is chert, a lithic fragment that is sometimes known to be quartz. QFL can be classified in the QFL diagram or QFL triangle.
How many rocks and sands do you know that are found in the QFL triangle?
QFL
An acronym for "quit fuckin(g) lying".
"QFL, I did not steal your delicious chocolate treats!"