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 is a stiffening of the muscles that takes place after death. It will usually start to take place about three hours after death. Full rigor mortis is reached usually within 12 hours of death. Rigor mortis is usually finished after 72 hours, but may last a little longer.