The study suggested that a mother's diet as an adult had no effect on her baby's birth weight. Far more important were the mother's health and nutrition as a baby and toddler, and even the grandmother's diet when she was pregnant with the baby's mother.
Synthetic Opal: is created in a Lab, but itsâ properties, chemical, optical and physical, are identical to that of a naturally occurring Opal. Simulated Opal: is also created in a Lab, and is optically identical to natural Opal, but does not have the same physical and chemical characteristics. One of the biggest distinctions, and subject of debate for classification, is what is used in place of water in the Lab Created Opals. The originator of the Synthetic Opal, Pierre Gilson Sr., uses pure silica to fill the gaps between the Opal spheres. Thus creating a product that is 100% Opal.
synthetic. adj. 1. (Chemistry) (of a substance or material) made artificially by chemical reaction. 2. not genuine; insincere: synthetic compassion. 3. (Linguistics) denoting languages, such as Latin, whose morphology is characterized by synthesis.), polysynthetic. 5. Also, synâ¢thetâ²iâ¢cal. Logic. of or pertaining to a noncontradictory proposition in which the predicate is not included in, or entailed by, the subject. 6. noting a gem mineral manufactured so as to be physically, chemically, and optically identical with the mineral as found in nature.