Fabulous single crystal of very rare Garnet var. Grossular with green phantom. The Grossular crystal is gem, with very saturated grass-green core, which is result of Chromium, surrounded by transparent, colorless areas. The crystal has rhombic dodecahedral sharp crystallization, glassy luster and irresistible contrast. The green cored Garnets are among the most unusual and rare Jeffrey mine Garnets. This was mined long time ago - the mine is closed now. For references see the 2013 issue of The Mineralogical Record vol. 44, # 4. In very good condition – some back side contact. On acrylic base.
Gorgeous phantom Garnet!