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.
The word Opal comes from the Latin word opalus, which means precious stone. Opal is a form of noncrystalline quartz which is created from circulating, silica-bearing waters.When the silica solidifies it creates the gemstone Opal which contains approximately 6 to 10 percent water.imulants are man-made stones which are similar to Opal but made from a different material. Fire Opal is minded in Mexico and Honduras, and several varieties of Precious Opal are found in India, New Zealand and the deserts of the western US.