Volcanic sublimate
Appearance
A volcanic sublimate or fumarolic sublimate is a mineral which forms directly from volcanic gas, by the process of deposition, during an eruption or discharge from a volcanic vent or fumarole.[1] Native sulfur is a common sublimate mineral and various halides, sulfides and sulfates occur in this environment associated with fumaroles and eruptions.
References
- ^ Manahan, Stanley E. Environmental Chemistry, CRC Press, 2004, Eighth Edition, p. 408 ISBN 978-1566706339