The chemical composition of a garnet from the Crabtree Emerald Mine, Spruce Pine, North Carolina
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Date
1974
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Publisher
The Ohio State University
Abstract
The chemical composition of members of the garnet group may be determined by measuring the physical properties specific gravity, index of refraction and unit cell edge. A sample of garnet from the pegmatite of the Crabtree Emerald Mine, Spruce Pine, North Carolina, was characterized in this study as having a composition of either: 61.37% Almandine, 24.41% Pyrope, 12.75% Andradite and 1.46% Grossular or 58.74% Almadine, 25.06% Pyrope, 13.19% Andradite and 3.01% Spessartine.