By A Mystery Man Writer
This article reviews blue shortwave-excited luminescence (BSL) in natural minerals and synthetic materials. It also describes in detail the emission of seven minerals and gems displaying BSL, as well as three references in which BSL is caused by titanate groups (TiO6): benitoite, Ti-doped synthetic sapphire and spinel. Emission (under 254 nm shortwave excitation) and excitation spectra are provided, and fluorescence decay times are measured. It is proposed that BSL in beryl (morganite), dumortierite, hydrozincite, pezzotaite, tourmaline (elbaite), some silicates glasses, and synthetic opals is due to titanate groups present at a concentration of 20 ppmw Ti or above. They all share a broad emission with a maximum between 420 and 480 nm (2.95 to 2.58 eV) (thus perceived as blue), and an excitation spectrum peaking in the short-wave range, between 230 and 290 nm (5.39 to 4.27 eV). Furthermore, their luminescence decay time is about 20 microseconds (from 2 to 40). These three parameters are consistent with a titanate emission, and to our knowledge, no other activator.
Example of Mineral Resources, Worksheet, Education.com
pH Minerals, Premier 8oz-Ionic pH Balance & Magnesium Support- PRLabs – Journeys Holistic Life
Minerals, Free Full-Text
Minerals, Free Full-Text
PPT - What is a Mineral? 11/21/12 PowerPoint Presentation, free download - ID:5899949
Real World Maximizer Plus Mineral by Real World Wildlife Products.
[Kids, Nutri Edu] on . *FREE* shipping on qualifying offers. Nutrition Activity Book for Kid
Nutrition Activity Book for Kids - Why Your Body Needs Minerals: Teaching Healthy Food Choices - All about Minerals - Recipes - Fun Exercises
All Minerals For Human Health. Magnesium, Calcium, Iron And Others. Scientific Research. Abstract Composition Of Hexagons. Royalty Free SVG, Cliparts, Vectors, and Stock Illustration. Image 124943328.
Minerals, Free Full-Text
Minerals, Free Full-Text
Encyclopedia of Rocks an Minerals Edited by A.F.L. Deeson 9780517505502
Minerals, Free Full-Text
Introducing Comprehensive Minerals, the ultimate supplement scientifically formulated to provide significant amounts of all essential macrominerals
Comprehensive Minerals - 90 Capsules