EARTHSC 1108 Lecture Notes - Lecture 1: Culet, Gemstone, Standard-Definition Television
1 Dec 2016
School
Department
Course
Professor
Document Summary
*gemstones and precious metals available at orton library. Minerals: solid chemical compound, naturally occurring, definable chemical formula, orderly internal atomic arrangement (mostly, inorganic origin (mostly) Inorganic: was not made by something that was living. Rocks: aggregate of one or more minerals, *granite: quartz + 2 feldspars +/- mica (these are also known as rock-forming minerals) Some of the hardest (most abrasion-resistant) substance known: diamond, ruby, sapphire. Gems have been used to demonstrate state wealth and power. Diamonds and debeers: one of the marketing success stories of the 20th century, a diamond is forever , re-shaped what it meant to give someone something as an engagement present. Tanzanite: problems marketing this spectacular stone illustrate complexities of gem industry, one of the rarest gems, only one locality where this comes from, spectacular optical properties, color changes as orientation of the light. No uniform criteria for distinguishing precious" stones from semiprecious": defined culturally, marketing.
