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.
People often said that white opal is less valuable than all opal stones. This is reasonable, considering the fact that white opal is the most common one. However, you should not underestimate the quality of good white opal, as the stone has less vibrant colors due to the lack of black spot on the stone.