Even though oxalate crystals are most common in the kidney, they also can form in virtually any other tissue in the body, including the brain and the blood-brain barrier. Oxalate crystals resembling pieces of glass can form in the heart muscle. As the heart muscle contracts, these pieces of oxalate crystals actually tear into the tissue. If these crystals are deposited in skeletal muscle, normal movement and exercise can be very painful. Other diseases in which oxalates may play a role include arthritis, joint pain and interstitial cystitis.
Data Source – Quora – Good conductors, such as most metals, e.g. copper and gold, have a ‘sea’ of free electrons, which are charged particles, that are free to move around, and therefore carry charge, which is what makes up electricity. this causes them to be good conductors of electricity
silicon is a poor conductor of electricity due to the free electrons being locked in giant lattice structures, and being unable to move around and carry the charge that makes up electricity.
however, when silicon is heated up, the giant lattice structures start to break down, and the electrons are released. this is important, because the electrons so not just conduct electricity, but also heat. when heated, the electrons are free to move around and therefore conduct heat. it is for the same reason that silicon becomes a better conductor of electricity the more you heat it up, since more of the giant lattice structures break, releasing more electrons to conduct electricity.
As pointed out, pure silicon is a semiconductor and has a resistance about halfway between good conductors and good insulators.