$3,500.00 €3,299 £2,840.00 approx. This specimen is priced in US dollars, all other prices are approximate.
A fine display of lustrous black prismatic terminated crystals of Neptunite richly adorn the display face of the specimen measuring to 2.3cm, with scattered crystals of cornflower blue Benitoite, with white Natrolite on a light grey glaucophane schist matrix. From the California State Gem Mine (Dallas Gem Mine).