Malayaite from Devon, England

Contributed by: Michael Crawford
Date: Sep 1st, 2025
Locality: Meldon Mine, Okehampton Hamlets, West Devon, Devon, England, UK (See on Mindat)
Size: 4 x 8 cm

Description:
A specimen of Malayaite (CaSn(SiO4)O) from the Meldon Mine, West Devon, Devon, England. The label that came with the specimen gave the location as the Red-a-Ven Mine which is the same as the Meldon Mine according to mindat.org.

Malayaite fluoresces pale yellow under shortwave UV light. It is non-fluorescent under longwave and midwave light. The emission spectrum is a broad peak with a maximum at 500 nm.

Fluorescence under shortwave UV light.

Normal light.

Emission Spectrum

Summary of luminescence responses:

Malayaite (Mindat) (RRUFF)

• Fluorescence under Shortwave (255nm LED) UV light: White