metamorphic
Ruby in Fuchsite
Cr-rich Muscovite (Fuchsite) with Corundum (Ruby)
Hardness varies (9.0 for ruby, 2-3 for fuchsite), color is typically mottled green with pinkish-red spots, lackluster to pearly luster, monoclinic/hexagonal crystal structures.
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Physical properties
Hardness varies (9.0 for ruby, 2-3 for fuchsite), color is typically mottled green with pinkish-red spots, lackluster to pearly luster, monoclinic/hexagonal crystal structures.
Formation & geological history
Formed through regional metamorphism of aluminum-rich rocks. Most well-known deposits are found in Precambrian metamorphic terrains, often involving hydrothermal activity that introduces chromium.
Uses & applications
Primarily used for ornamental carvings, polished points (towers), cabochons for jewelry, and as a popular specimen for metaphysical collectors.
Geological facts
While it looks similar to Ruby in Zoisite, Ruby in Fuchsite can be distinguished by the presencia of blue-green kyanite halos often surrounding the ruby crystals.
Field identification & locations
Identify by the distinctive red ruby inclusions within a bright green mica matrix. Often found in India and Brazil. Collectors should look for the 'halo' effect to confirm identity.
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