Showing posts with label Ziyin Sun. Show all posts
Showing posts with label Ziyin Sun. Show all posts
Thursday, November 28, 2019

Gemological And Chemical Characteristics Of Natural Freshwater Pearls From The Mississippi River System

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A brilliant research report by the GIA. Useful link: https://www.gia.edu/gems-gemology/summer-2019-gemnews-characteristics-natural-fre...
Tuesday, November 05, 2019

Separation Of Kornerupine And Prismatine

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Follow the standard gem identification methodology. Useful link: https://www.gia.edu/gems-gemology/summer-2019-labnotes-separation-of-...
Monday, September 30, 2019

Inclusion-Rich Black Topaz From The Thomas Mountains, Utah

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Without analytical gem identification, no one would be able to identify the types of inclusions that gives the gem an unusual body color. ...
Thursday, August 29, 2019

Color-Change Spessartine Garnet: A First Report

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A collector's gemstone. Useful link: https://www.gia.edu/gems-gemology/summer-2019-labnotes-color-change-spessartine-garnet-first-...
Wednesday, August 14, 2019

A New Method For Determining Gem Tourmaline Species By LA-ICP-MS

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Simple gemological tests to separate various species and their varieties in the tourmaline group is difficult. LA-ICP-MS is beyond the reach...
Friday, October 05, 2018

Discovery Of Color-Change Chrome Grossular Garnets From Ethiopia

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Take a look. Useful link: https://www.gia.edu/gems-gemology/summer-2018-gemnews-discovery-of-color-change-chrome-grossular-garnets-from-e...
Thursday, March 01, 2018

Accurate Reporting Of Key Trace Elements In Ruby And Sapphire Using Matrix-Matched Standards

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A must read. Useful link: https://www.gia.edu/gems-gemology/winter-2017-accurate-reporting-key-trace-elements
Wednesday, December 13, 2017

Blue-Green Pyrope-Spessartine Garnet With High Vanadium

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Take a look. Useful link: https://www.gia.edu/gems-gemology/fall-2017-gemnews-blue-green-pyrope-spessartine
Monday, September 25, 2017

Raspberry-Red Garnet With Black Core

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One of a kind. Take a look. Useful link: https://www.gia.edu/gems-gemology/summer-2017-gemnews-raspberry-red-garnet-black-core
Friday, September 15, 2017

Tri-Color-Change Holmium-Doped Synthetic CZ

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One of a kind gem. Useful link: https://www.gia.edu/gems-gemology/summer-2017-gemnews-holmium-synthetic-cz
Monday, August 07, 2017

Multi-Elemental Diffused And Melt-Grown Synthetic Sapphire

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Synthetic sapphire update. Useful link: https://www.gia.edu/gems-gemology/spring-2017-labnotes-multi-elemental-diffused-melt-grown-synthe...
Sunday, July 02, 2017

Cuprian Liddicoatite Tourmaline

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Paraiba tourmaline update. Useful link: https://www.gia.edu/gems-gemology/spring-2017-cuprian-liddicoatite-tourmaline
Thursday, May 18, 2017

The Role Of Silicon In The Color Of Gem Corundum

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A must read. Useful link: https://www.gia.edu/gems-gemology/spring-2017-role-silicon-color-gem-corundum

Cuprian Liddicoatite Tourmaline

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A must read. Useful link: https://www.gia.edu/gems-gemology/spring-2017-cuprian-liddicoatite-tourmaline
Monday, February 06, 2017

Cuprian Liddicoatite Tourmaline

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Take a look. Useful link: https://www.gia.edu/gia-news-research/cuprian-liddicoatite-tourmaline

A New Discovery Of Emeralds From Ethiopia

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Take a look. Useful link: https://www.gia.edu/gems-gemology/spring-2017-gemnews-new-discovery-emeralds-ethiopia
Tuesday, December 13, 2016

Sphalerite In Topaz

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One of a kind inclusions. Useful link: http://www.gia.edu/gems-gemology/fall-2016-microworld-sphalerite-topaz
Friday, December 02, 2016

Large Aqueous Primary Fluid Inclusion In Amethyst

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Take a look. Useful link: http://www.gia.edu/gems-gemology/fall-2016-gemnews-large-aqueous-primary-fluid-inclusion-amethyst
Thursday, March 31, 2016

Natural Faceted Red Rutile

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Take a look. Useful link: http://www.gia.edu/gems-gemology/fall-2015-gemnews-natural-faceted-red-rutile
Wednesday, March 30, 2016

Vanadium - And Chromium-Bearing Pink Pyrope Garnet

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A must read. Useful link: http://www.gia.edu/gems-gemology/winter-2015-vanadium-chromium-bearing-pink-pyrope-garnet-characterization-quan...