The outer covering of diatom is made of:
MEDICO-LEGAL SIGNIFICANCE OF DIATOMS TEST Diatoms are unicellular algae with silicaQ***in its cell wall Only a beating hea can transpo the diatoms to distant organs It indicates death due to drowningQ*** Diatoms in bone marrow and brain is more reliable than any other organ As diatoms resist putrefactionQ***, it is valuable even in putrefaction Diatoms are negative in dead bodies thrown in waterQ***or dry drowningQ***
Magnesium
Silica
Hydrocarbons
None
Drowning