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.
A variety of gemstones have been found in Nevada and the state is well-known for its opal. After Australia, some of the finest black opals in the world come from Virgin Valley, Nevada. The specimen at right is a 9 millimeter faceted yellow fire opal of about 1.79 carats, cut from rough produced in Nevada.