Gemmology |
Contents
Introduction | 1 |
Groups species and varieties | 17 |
Bonding | 26 |
Copyright | |
32 other sections not shown
Other editions - View all
Common terms and phrases
Absorption spectrum alexandrite almandine amber atoms beryl blue calcite carats Chapter Chelsea filter chromium cleavage colourless Composition containing corundum critical angle Crystal system Cubic cultured pearls detected diamond simulant diffraction Dispersion Double refraction electrons Figure fluoresce flux-melt Fracture garnet gem materials gemmological gemstone glass green Hardness heat hexagonal identified illumination imitations immersed inclusions instrument jadeite layers lens light source lines liquid Luminescence LW UV magnification method microscope minerals Monoclinic Myanmar Myanmar Burma natural stone opal opaque optic sign Orthorhombic oxide pavilion facets pink plane Pleochroism polariscope polarizing filters polished prism Prismatic produced quartz rays reflected refraction and optic Refractive index refractometer rutile sapphire shadow edge Specific gravity specimen spectroscope spinel Sri Lanka surface SW UV synthetic corundum synthetic diamonds synthetic emeralds synthetic spinel table facet temperature thermal conductance topaz tourmaline translucent transparent Trigonal USSR variety Verneuil visible wavelength X-rays yellow zircon