The mineral zircon, known as zirconium silicate, is commonly found as a minor constituent in igneous rock such as granites and some kinds of metamorphic rock. Gem quality zircon stones are usually rare. These gemstones are formed mainly in pegmatites (coarse-grained igneous rock) and in fissures.
Temperature: A copse is flaccid immediately after death, muscle stiffening, rigor mortis, commences after about three to four hours, reaches maximum stiffness after 12 hours, and gradually dissipates until approximately 48 to 60 hours (two and a half days) after death.
Rigor Mortis usually starts taking place right after someone dies and lasts for about 72 hours depending on the temperature in the room that the death occurred in. The process of Rigor Mortis takes place mostly because the muscles cannot relax after someone dies. The bones in the personâs body start to actually contract within themselves and the skeletal muscles start to do the same.