Kunzite Yellow Green Crystal Pendant Bead | 29x23x9mm | 1 Bead |Yellow, Green Hiddenite Kunzite Rectangular Pendant Bead for Jewelry Making Hiddenite is a pale to emerald green variety variety of Spodumene. Writing in 1892, Georgge F Kunz described the hiddenite as "always transparent, ranges from colorless (rare) to a light yellow, into a yellowish green, then into a deep yellow emerald green. . Kunzite ranges from transparent to opaque, with a glassy luster. It often forms as flat, vertically striated crystals.