This is the Willemite and Calcite combo fluorescent mineral specimen, from USA, wide around 6.9cm. Willemite is a well-known fluorescent display mineral, it's glow bright green under UV shortwave. Calcite is a common mineral, and not all Calcite is fluorescent, The Calcite crystals of this specimen glow amazing red color under UV shortwave. Very amazing colorful fluorescent mineral specimen!
Size: 6.9-5.8-2.6cm
NO.14FM2475CW.
More Details: 1 video (under natural light and UV shortwave)and 2 pictures: