7.25" Red Spinel & Pargasite on Calcite Specimen Birthstone - Loose dark blue stones: lapis lazuli

dark blue stones: lapis lazuli (18 pieces)

top of shank width: 2

average clarity: VS-SI

USA Shape polished rough specimen

Vintage white gold emerald marquise halo shape ring from the 1930's

7.25" Red Spinel & Pargasite on Calcite Specimen Birthstone - Loose dark blue stones: lapis lazuliSpinel and Pargasite on Calcite An extraordinary sampling from the Luc Yen District of Vietnam, this 7. 25+ inch long mineral specimen exhibits more than six red spinel crystals and green pargasite crystals dispersed throughout the white calcite conglomerate matrix. Crystals are large and prominently display their iconic structures. Mineral Varieties Spinel, Pargasite, Calcite Weight (pounds) 1. 75+lbs Weight (kilograms) 0. 8kg Dimensions (inches) 7.