Discovered by the first Japanese expedition to Mt. Kilimanjaro in 1918 and reputed to weigh between 300 and 450 carats, this might be the largest known moonstone. Photo by Mr Matthew Hardy Japan. Licensed under CC By-SA 3.0.
Translucent White Adularescent Feldspar, 300 ct Cabochon from Tanzania
Discovered by the first Japanese expedition to Mt. Kilimanjaro in 1918 and reputed to weigh between 300 and 450 carats, this might be the largest known moonstone. Photo by Mr Matthew Hardy Japan. Licensed under CC By-SA 3.0.
Article: What is Moonstone Gemstone? Value, Price, and Color
Credit: Matthew Hardy
| Gemstone | Feldspar, Orthoclase, Moonstone |
| Natural or man made | Natural |
| Origin | Tanzania |
| Origin details | Mt. Kilimanjaro |
| Carat Weight | <i class="fa fa-square facet-search-color-swatch" style="color:#123b8c"></i> violetish Blue (vB) |
| Gem State | Cabochon |
| Color | White |
| Transparency | Translucent |
| Photo phenomena | Adularescence |