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COLORED STONES AND ORGANIC MATERIALS.
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- Gems & Gemology, 2024, v. 60, n. 2, p. 252
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- Article
Update on inclusion scenes in Mozambican rubies.
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- Gems & Gemology, 2024, v. 60, n. 1, p. 137
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- Article
Phenomenal emeralds from Chitral, Pakistan.
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- Gems & Gemology, 2024, v. 60, n. 1, p. 126
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- Article
Ukrainian pegmatitic heliodor and topaz.
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- Gems & Gemology, 2024, v. 60, n. 1, p. 116
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- Article
Blue amblygonite-montebrasite from Rwanda.
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- Gems & Gemology, 2023, v. 59, n. 4, p. 524
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- Article
COLOR MODIFICATION OF SPINEL BY NICKEL DIFFUSION: A NEW TREATMENT.
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- Gems & Gemology, 2023, v. 59, n. 2, p. 164, doi. 10.5741/GEMS.59.2.164
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- Article
Chromophore behaviors (including the 880 nm absorption band) in an irradiated pink sapphire.
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- Gems & Gemology, 2023, v. 59, n. 1, p. 160
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- Article
Color study of fancy sapphire from Greenland.
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- Gems & Gemology, 2023, v. 59, n. 1, p. 145
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- Article
A CANARY IN THE RUBY MINE: LOW-TEMPERATURE HEAT TREATMENT EXPERIMENTS ON BURMESE RUBY.
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- Gems & Gemology, 2022, v. 58, n. 4, p. 400, doi. 10.5741/GEMS.58.4.400
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- Article
BLUE SAPPHIRES FROM MOGOK, MYANMAR: A GEMOLOGICAL REVIEW.
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- Gems & Gemology, 2021, v. 57, n. 4, p. 292, doi. 10.5741/GEMS.57.4.292
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- Article
COLORED STONES AND ORGANIC MATERIALS.
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- Gems & Gemology, 2021, v. 57, n. 3, p. 276
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- Article
Peter Ngumbi (Vter Young).
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- Gems & Gemology, 2021, v. 57, n. 1, p. 84
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- Article
Prida Tiasuwan (Pranda Jewelry Group).
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- Gems & Gemology, 2021, v. 57, n. 1, p. 81
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- Article
VIRTUAL REPORT ON THE INDUSTRY IN 2021.
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- Gems & Gemology, 2021, v. 57, n. 1, p. 70
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- Article
LOW-TEMPERATURE HEAT TREATMENT OF PINK SAPPHIRES FROM ILAKAKA, MADAGASCAR.
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- Gems & Gemology, 2020, v. 56, n. 4, p. 448, doi. 10.5741/GEMS.56.4.448
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- Article
Portrait of a Paraíba rough: Challenging gems in hard times.
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- Gems & Gemology, 2020, v. 56, n. 2, p. 308
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- Article
Purplish pink diaspore reportedly from Afghanistan.
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- Gems & Gemology, 2020, v. 56, n. 2, p. 298
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- Article
FIELD GEMOLOGY: BUILDING A RESEARCH COLLECTION AND UNDERSTANDING THE DEVELOPMENT OF GEM DEPOSITS.
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- Gems & Gemology, 2019, v. 55, n. 4, p. 490, doi. 10.5741/GEMS.55.4.490
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- Article
A DECADE OF RUBY FROM MOZAMBIQUE: A REVIEW.
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- Gems & Gemology, 2019, v. 55, n. 2, p. 162, doi. 10.5741/GEMS.55.2.162
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- Article
Derek Katzenbach: Faceter, gem artist, custom jeweler.
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- Gems & Gemology, 2019, v. 55, n. 1, p. 143
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- Article
Wild & Petsch: Sourcing rough and cutting in Idar-Oberstein.
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- Gems & Gemology, 2019, v. 55, n. 1, p. 142
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- Article
Greenland ruby update.
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- Gems & Gemology, 2019, v. 55, n. 1, p. 130
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- Article
Colombian emeralds and Mozambican rubies from Fura Gems.
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- Gems & Gemology, 2019, v. 55, n. 1, p. 125
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- Article
LAND OF ORIGINS: A GEMOLOGICAL EXPEDITION TO ETHIOPIA.
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- Gems & Gemology, 2019, v. 55, n. 1, p. 72, doi. 10.5741/GEMS.55.1.72
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- Article
Blue Sapphires from Mogok, Myanmar.
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- 2018
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- Abstract
GIA's Field Gemology Program: A Modern Approach to Origin Determination.
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- Gems & Gemology, 2018, v. 54, n. 3, p. 283
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- Article
Twelve-rayed star sapphire from Thailand.
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- Gems & Gemology, 2018, v. 54, n. 2, p. 238
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- Article
Rex Guo: The science and art of recutting fine gemstones.
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- Gems & Gemology, 2018, v. 54, n. 1, p. 89
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- Article
Update on the Green Dragon demantoid mine in Namibia.
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- Gems & Gemology, 2018, v. 54, n. 1, p. 76
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- Article
COLORED STONES AND ORGANIC MATERIALS.
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- Gems & Gemology, 2018, v. 54, n. 1, p. 75
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- Article
Update on Russian demantoid production.
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- Gems & Gemology, 2018, v. 54, n. 1, p. 77
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- Article
COLORED STONES AND ORGANIC MATERIALS.
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- Gems & Gemology, 2017, v. 53, n. 4, p. 472
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- Article
Tourmaline Crystals on Burmese Ruby.
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- Gems & Gemology, 2017, v. 53, n. 4, p. 468
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- Article
Complex Yellow Fluid Inclusions in Red Burmese Spinel.
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- Gems & Gemology, 2017, v. 53, n. 4, p. 468
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- Article
Tektite with a large fluid inclusion.
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- Gems & Gemology, 2017, v. 53, n. 2, p. 254
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- Article
COLORED STONES AND ORGANIC MATERIALS.
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- Gems & Gemology, 2017, v. 53, n. 2, p. 247
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- Article
Sapphires With Unusual Radial "Eye" Structure.
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- Gems & Gemology, 2017, v. 53, n. 2, p. 244
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- Article
A new discovery of emeralds from Ethiopia.
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- Gems & Gemology, 2017, v. 53, n. 1, p. 114
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- Article
Negative Crystals in Sapphires.
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- Gems & Gemology, 2017, v. 53, n. 1, p. 107
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- Article
Trapiche-type sapphire from Tasmania.
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- Gems & Gemology, 2016, v. 52, n. 4, p. 430
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- Article
Curved Tubes in Blue Sapphire.
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- Gems & Gemology, 2016, v. 52, n. 4, p. 425
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- Article
UPDATE ON GEMSTONE MINING IN NORTHERN MOZAMBIQUE.
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- Gems & Gemology, 2016, v. 52, n. 4, p. 404, doi. 10.5741/GEMS.52.4.404
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- Article
COLORED STONES AND ORGANIC MATERIALS.
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- Gems & Gemology, 2016, v. 52, n. 3, p. 317
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- Article
Etch Marks, Negative Crystals, and Etch Tubes in Spinel from Madagascar.
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- Gems & Gemology, 2016, v. 52, n. 3, p. 313
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- Article
Inclusions in Burmese Amber.
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- Gems & Gemology, 2016, v. 52, n. 2, p. 198
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- Article
Gem News International.
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- Gems & Gemology, 2015, v. 51, n. 4, p. 446
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- Article
Identification of Opaque Sulfide Inclusions in Rubies from Mogok, Myanmar and Montepuez, Mozambique.
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- Minerals (2075-163X), 2020, v. 10, n. 6, p. 492, doi. 10.3390/min10060492
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- Article