Mayotte is an extinct volcanic island, part of the Comores
Archipelago.
Work by Spath et al, 1996 indicates three periods of activity;
an early shield building stage from 15 to about 3.75 million
years,
a post-erosional phase from about 3.75 to 2.5 million years,
and a rejuvenescent phase from 2.5 to 1.9 million years.
A wide variety of igneous rocks were erupted, including
alkali basalt, basanite, trachybasalt, phonotephrite, benmoreite,
trachyte, phonolite, basalt, and shoshonite.
The following stamp was issued in 1971.
The following airmail stamps were issued in 1974.
The following airmail map stamp was also issued in 1974
The following set of map stamps were issued in 2004.
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