polycrase
Noun
Meaning
polycrase (usually uncountable, plural polycrases)
(mineralogy) A black or brown amorphous metallic complex uranium yttrium oxide mineral, found in granitic pegmatites.
Noun
polycrase (usually uncountable, plural polycrases)
(mineralogy) A black or brown amorphous metallic complex uranium yttrium oxide mineral, found in granitic pegmatites.