New Chromium- and Vanadium-Bearing Garnets from Tranoroa, Madagascar
Pyrope-spessartine garnets from Tranoroa, in southern Madagascar, contain appreciable Cr and somewhat lower V contents.
Pink to Pinkish Orange Malaya Garnets from Bekily, Madagascar
Malaya garnets from Bekily, Madagascar, are predominantly pink to pinkish orange, with some stones orange to red.
Garnets from Madagascar with a Colour Change of Blue-Green to Purple
Gemmological, chemical, spectroscopic and microscopic properties of blue-green colour-change garnets from a new deposit near Bekily, Madagascar, are given.
Russian Demantoid, Czar of the Garnet Family
Demantoid, green andradite garnet, was discovered in the Central Ural Mountains of Russia in the mid-19th century.
Unstable Radiation-Induced Yellow-Green Colour in Grossular Garnet
Exposure of some colourless to pale-hued African grossulars to either 60Co or 137Cs gamma rays turns them light yellow-green.
Pyrope garnets occur in near-colourless to light orange and pink, as well as the familiar red.
A Proposed New Classification for Gem-Quality Garnets
Eight garnet species are defined and methods of identification are described.
Pyrope-Spessartine Garnets with Unusual Colour Behaviour
Unusual colour-change garnets.
Gem Andradite Garnets
Gem-quality andradites are easy to distinguish chemically from other types of gem garnets.
A New Classification for Red-To-Violet Garnets
An overview of previous red-to-violet garnet classification schemes and a proposal for a new one.