Demeter appeared most commonly as a grain goddess.
Rabit is one of a number of producers making a style of electronic music known most commonly as instrumental grime.
The magnesium-iron olivines occur most commonly as compact or granular masses.
They have become known most commonly as Balthasar, Melchior, and Gaspar (or Casper).
Bryozoan colonies are found in both fresh and salt waters, most commonly as growths or crusts on other objects.
Aegirine (acmite) and aegirine-augite occur most commonly as products of the late crystallization of alkaline magmas.
Glauconite occurs most commonly as earthy to dull, subtranslucent, green to nearly black granules generally referred to as pellets.
Acellular slime molds, which grow on bacteria, fungi and decaying organic matter, exist most commonly as plasmodia, large amoebalike cells with many nuclei.
The composition FeS2 occurs most commonly as pyrite, with an isometric structure, but it is also found as marcasite, which has an orthorhombic internal arrangement.
Fluorite occurs most commonly as a glassy, many-hued vein mineral and is often associated with lead and silver ores; it also occurs in cavities, in sedimentary rocks, in pegmatites, and in hot-spring areas.
I don't know whether it's simply cultural – whether we subconsciously hear the word "poetic" as a synonym for "painfully slow" – or whether it's specific to when the word is attached to "theatre", another word with a rich tapestry of negative connotations (most commonly as a synonym for show-offy, or something dishonest).
