Gem-quality andradites are easy to distinguish chemically from other types of gem garnets.
Read MoreThe gemological classification and identification of gem grossular garnets is examined.
Read MoreThe gemological properties and chemical compositions of two unusual color-change garnets are reviewed.
Read MoreThis article shows that the characteristic of color appears to have little correlation with variations in bulk (not trace) composition or physical properties.
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Article
G&G Brief presents an overview of the content of the Winter 2015 issue of Gems & Gemology.
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Pyrope garnets occur in near-colorless to light orange and pink, as well as the familiar red.
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“Rainbow” andradite from Nara, Japan, occurs as relatively small orangy brown crystals that show attractive iridescence in almost the entire range of the spectrum.
Read MoreFrom the Summer 1991 issue of Gems & Gemology, a summary of important gemology-related articles published in other journals.
Read MoreAttractive yellow to light greenish yellow gem scapolites have been mined from a skarn deposit near the town of Ihosy.
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