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MICRO-FEATURES OF TOURMALINE.
- Published in:
- Gems & Gemology, 2024, v. 60, n. 2, p. 208, doi. 10.5741/GEMS.60.2.208
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G&G Miccro - World.
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- Gems & Gemology, 2024, v. 60, n. 2, p. 226
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Dance of Light and Color: Painted Labradorite.
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- Gems & Gemology, 2024, v. 60, n. 2, p. 272
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- Article
Shrinkage Cracks in Fire Agate.
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- Gems & Gemology, 2024, v. 60, n. 1, p. 74
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Pink and Red Epidote in Quartz.
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- Gems & Gemology, 2024, v. 60, n. 1, p. 76
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Radial Limonite in Sapphire.
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- Gems & Gemology, 2024, v. 60, n. 1, p. 77
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Quarterly Crystal: Diamond in Diamond.
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- Gems & Gemology, 2024, v. 60, n. 1, p. 81
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- Article
MICRO-FEATURES OF BERYL.
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- Gems & Gemology, 2023, v. 59, n. 4, p. 484, doi. 10.5741/GEMS.59.4.484
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Quarterly Crystal: Hiddenite from Idaho.
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- Gems & Gemology, 2023, v. 59, n. 4, p. 507
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SPECIAL COLORS AND OPTICAL EFFECTS OF OREGON SUNSTONE: ABSORPTION, SCATTERING, PLEOCHROISM, AND COLOR ZONING.
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- Gems & Gemology, 2023, v. 59, n. 3, p. 298, doi. 10.5741/GEMS.59.3.298
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Quarterly Crystal: Dravite in Fluorapatite.
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- Gems & Gemology, 2023, v. 59, n. 3, p. 379
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Ruby from Central Madagascar.
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- Journal of Gemmology, 2023, v. 38, n. 6, p. 554, doi. 10.15506/jog.2023.38.6.554a
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- Article
GEMOLOGICAL CHARACTERIZATION OF MONTANA SAPPHIRE FROM THE SECONDARY DEPOSITS AT ROCK CREEK, MISSOURI RIVER, AND DRY COTTONWOOD CREEK.
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- Gems & Gemology, 2023, v. 59, n. 1, p. 2, doi. 10.5741/GEMS.59.1.2
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- Article
Quarterly Crystal: Columbite(?) in Beryl.
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- Gems & Gemology, 2023, v. 59, n. 1, p. 90
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New violet orbicular chalcedony from Ethiopia.
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- Gems & Gemology, 2023, v. 59, n. 1, p. 105
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Exceptionally rare pearls from ECIJA.
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- Gems & Gemology, 2023, v. 59, n. 1, p. 113
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- Article
Quantitative definition of strength of chromophores in gemstones and the impact on color change in pyralspite garnets.
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- Color Research & Application, 2022, v. 47, n. 5, p. 1134, doi. 10.1002/col.22789
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Rare Orange BENITOITE.
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- Gems & Gemology, 2022, v. 58, n. 2, p. 214
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Quarterly Crystal: Cinnabar in Fluorite.
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- Gems & Gemology, 2022, v. 58, n. 2, p. 233
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Inclusions in Gemstones.
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- Gems & Gemology, 2022, v. 58, n. 2, p. 234
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Complex Fluid Inclusion in Topaz.
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- Gems & Gemology, 2022, v. 58, n. 1, p. 69
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- Article
Quarterly Crystal: Hillocks on Beryl.
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- Gems & Gemology, 2022, v. 58, n. 1, p. 70
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- Article
Rainbow Graining in Diamond.
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- Gems & Gemology, 2021, v. 57, n. 4, p. 385
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- Article
Monazite (?) in Quartz.
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- Gems & Gemology, 2021, v. 57, n. 4, p. 386
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Quarterly Crystal: Rutile on Hematite.
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- Gems & Gemology, 2021, v. 57, n. 4, p. 388
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Update on mining activity at Yogo Gulch, Montana.
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- Gems & Gemology, 2021, v. 57, n. 4, p. 400
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Blue zircon reportedly from Malawi.
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- Gems & Gemology, 2021, v. 57, n. 4, p. 404
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Johnkoivulaite, Cs(Be<sub>2</sub>B)Mg<sub>2</sub>Si<sub>6</sub>O<sub>18</sub>, a new mineral of the beryl group from the gem deposits of Mogok, Myanmar.
- Published in:
- American Mineralogist, 2021, v. 106, n. 11, p. 1844, doi. 10.2138/am-2021-7785
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Faceted Octahedral Diamond with Octahedral-Shaped Inclusion.
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- Gems & Gemology, 2021, v. 57, n. 3, p. 269
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Willemite in Topaz.
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- Gems & Gemology, 2021, v. 57, n. 3, p. 273
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Quarterly Crystal: Fibers and Rods in Euclase.
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- Gems & Gemology, 2021, v. 57, n. 3, p. 274
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Emerald Modern Gemmology.
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- Journal of Gemmology, 2021, v. 37, n. 7, p. 742, doi. 10.15506/jog.2021.37.7.742
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- Article
Neptunite Inclusion in Benitoite.
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- Gems & Gemology, 2021, v. 57, n. 2, p. 160
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Xenomorphic Olivine Inclusion in Diamond.
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- Gems & Gemology, 2021, v. 57, n. 2, p. 160
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- Article
Bent Rutile in Rock Crystal Quartz.
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- Gems & Gemology, 2021, v. 57, n. 2, p. 161
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- Article
MICRO-FEATURES OF SPINEL.
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- Gems & Gemology, 2021, v. 57, n. 1, p. 46, doi. 10.5741/GEMS.57.1.46
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Rare Faceted HEXAGONITE.
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- Gems & Gemology, 2021, v. 57, n. 1, p. 55
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Diamond-Shaped Cloud in Diamond.
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- Gems & Gemology, 2021, v. 57, n. 1, p. 65
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- Article
Unusual Fibrous Inclusions in Blue Opal.
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- Gems & Gemology, 2021, v. 57, n. 1, p. 67
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Exceptional Purple Montana Sapphire.
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- Gems & Gemology, 2020, v. 56, n. 2, p. 286
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Quarterly Crystal: Pyrite in Quartz.
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- Gems & Gemology, 2020, v. 56, n. 2, p. 296
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Purplish pink diaspore reportedly from Afghanistan.
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- Gems & Gemology, 2020, v. 56, n. 2, p. 298
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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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A REVIEW OF ANALYTICAL METHODS USED IN GEOGRAPHIC ORIGIN DETERMINATION OF GEMSTONES.
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- Gems & Gemology, 2019, v. 55, n. 4, p. 512, doi. 10.5741/GEMS.55.4.512
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GEOGRAPHIC ORIGIN DETERMINATION OF BLUE SAPPHIRE.
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- Gems & Gemology, 2019, v. 55, n. 4, p. 536, doi. 10.5741/GEMS.55.4.536
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GEOGRAPHIC ORIGIN DETERMINATION OF RUBY.
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- Gems & Gemology, 2019, v. 55, n. 4, p. 580, doi. 10.5741/GEMS.55.4.580
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GEOGRAPHIC ORIGIN DETERMINATION OF EMERALD.
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- Gems & Gemology, 2019, v. 55, n. 4, p. 614, doi. 10.5741/GEMS.55.4.614
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Amethyst from Zimbabwe.
- Published in:
- Journal of Gemmology, 2019, v. 36, n. 8, p. 682, doi. 10.15506/jog.2019.36.8.682
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Quartz from Brazil with Gormanite Inclusions.
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- Journal of Gemmology, 2019, v. 36, n. 8, p. 696, doi. 10.15506/jog.2019.36.8.696
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Quartz from Brazil with Dendritic Inclusions.
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- Journal of Gemmology, 2019, v. 36, n. 7, p. 589, doi. 10.15506/jog.2019.36.7.589
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