This large, pale yellow, gem scapolite crystal is from the scapolite locality in the Karur District, Tamil Nadu, India. It is exceptional due to its size and internal clarity. Under UV, it shows a multi-colored, multi-wavelength fluorescent response as shown in the photographs below. The size of this outstanding specimen is 89 x 23 x 23 mm, and it weighs 76 grams.
From left to right, the above photo montage shows the scapolite crystal under visible light, short wave UV (254 nm), mid wave UV (302 nm), and long wave UV (365 nm).
The image above shows the scapolite crystal under visible light. Note the significant striations running parallel to the c-axis. From Karur India, the crystal measures 98 mm in length.
Same specimen showing bright, luscious orange-red fluorescence under short wave UV (254 nm).
Under mid wave UV (302 nm), the specimen shows a vivid pink-magenta fluorescent response.
Same specimen showing subdued magenta-colored fluorescence under long wave UV (365 nm).
Hand-held photograph taken outdoors for scale.