Quartz slabs have the following physical properties:
(1) Quartz slabs have a high brittleness.
(2) Quartz slabs have thermoelectric properties.
(3) The refractive index of quartz slabs is 1.533 1.541, with a birefringence difference of 0.009 and a dispersion of 0.013.
(4) Quartz slabs have high piezoelectricity (Piezoelectric property), which means that sparks will be generated when the friction is struck hard, as in the flint-knife method.
(5) The most common inclusions found in quartz slabs are Hair crystals are mostly rutile. Grass crystal-tourmaline; water bladder crystal-liquid inclusions in quartz slabs; blue quartz slabs-light blue rutile needles inside; milk quartz slabs-turbidity caused by fine water holes; green quartz slabs-plate-like or fragmented chlorite, sometimes green needle-like actinolite; aventurine (Aventurine)-quartz slabs contain green or reddish-brown mica flakes, also known as Yao quartz slabs The presence of common smoky black to dark brown smoky crystals is primarily due to the presence of more radioactive uranium and thorium elements in these rocks.
