IACUC GUIDANCE ON PI RECORDKEEPING FOR ANIMAL RESEARCH. INTRODUCTION. This document is provided to assist the animal investigator in determining the appropriate and. necessary record-keeping for animals in research, as mandated by federal and university laws, regulations, and policies.
Meaning Of Opal. Everyone associates opals as one of the worlds most unique gemstone. but what is the meaning of the word Opal. The name Opal is derived from ancient Sanakrit Upala meaning precious stone and later the Greek Derivative Opallios meaning to see a change of colour.
Opal is one of the most precious gemstones. Black Opal is the most valuable and desired form, but White Opal and Precious Fire Opal can also be quite costly. Opals gemstones are cut and polished into cabochons, and in a few rare cases are faceted into several cuts.