Nothing Special   »   [go: up one dir, main page]

Leelawatanasuk et al., 2013 - Google Patents

Cobalt-doped glass-filled sapphires: An update

Leelawatanasuk et al., 2013

View PDF
Document ID
22270832694102308
Author
Leelawatanasuk T
Atitchat W
Pisutha-Arnond V
Wattanakul P
Ounorn P
Manorotkul W
Hughes R
Publication year
Publication venue
Aust. Gemmol

External Links

Snippet

The history of glass-infilling in blue sapphire is reviewed, along with a detailed description of the latest generation of this treatment, which was developed by Tanusorn Lethaisong in Chanthaburi, Thailand. Stones may be identified by reference to their inclusions, lack of …
Continue reading at mail.lotusgemology.com (PDF) (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65—Raman scattering
    • G01N2021/653—Coherent methods [CARS]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/87—Investigating jewels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8803—Visual inspection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
    • G01N33/38—Investigating or analysing materials by specific methods not covered by the preceding groups concrete; ceramics; glass; bricks
    • G01N33/381—Investigating or analysing materials by specific methods not covered by the preceding groups concrete; ceramics; glass; bricks precious stones; pearls
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
    • G01N33/48—Investigating or analysing materials by specific methods not covered by the preceding groups biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated

Similar Documents

Publication Publication Date Title
Read Gemmology
Karampelas et al. Gems and gemmology
Leelawatanasuk et al. Cobalt-doped glass-filled sapphires: An update
Devouard et al. The identification of faceted gemstones: From the naked eye to laboratory techniques
McClure et al. Gemstone Enhancement and Its Detection in the 2000s.
Shigley Treated and synthetic gem materials
Leelawatanasuk et al. Green Lead-Glass-Filled Sapphires.
Shigley A review of current challenges for the identification of gemstones.
Hainschwang et al. The Rhodesian Star: An Exceptional Asteriated Diamond.
He The Applications of Ultraviolet Visible Absorption Spectrum Detection Technology in Gemstone Identification
Atsawatanapirom et al. Identification and Stability of Cobalt Diffusion-Treated Spinel
Shigley et al. Laboratory-treated gemstones
Zhang et al. Characteristics of coated jadeite jade
Sun et al. Multi-Elemental Diffused and Melt-Grown SYNTHETIC SAPPHIRE.
Johnson et al. G&G Lab Notes.
Scarratt A discussion on ruby-glass composites & their potential impact on the nomenclature in use for fracture-filled or clarity enhanced stones in general
Read Beginner's guide to gemmology
Choudhary et al. Gem News International.
DuToit et al. Beryllium treated blue sapphires: Continuing market observations and update including the emergence of larger size stones
Li et al. Identification of Reconstructed Amber from Different Periods.
Ahline et al. ANALYSIS OF GEMSTONES AT GIA LABORATORIES.
Gelb et al. Fracture Filled, with Varying Results.
Moses et al. Notable Cat’s-eye ALEXANDRITE
Smith Diffusion ruby” proves to be synthetic ruby overgrowth on natural corundum
TOOLS The Identification of Faceted Gemstones: From the Naked Eye to Laboratory Techniques