The accident occurred in the Blanket Quartz Reef area of the mine.
Caledonia has notified the Minister of Mines and Mining Development and the Inspector of Mines and will provide all the necessary assistance to the Ministry of Mines Inspectorate Department in its enquiry into this incident.
Production in the section has stopped pending an investigation.
Until such a time as the outcome of this enquiry has been reached, no further details can be released.
The directors and management of Caledonia and Blanket have expressed their sincere condolences to the family and colleagues of the deceased.
"It is with great sadness that we announce a fatal accident at Blanket Mine during the night shift on the 23rd of February,” said chief executive Steve Curtis.
“I join with all of my colleagues and fellow directors in expressing our sincere condolences to the family and friends of the deceased."