adularia
[ aj-uh-lair-ee-uh ]
/ ˌædʒ əˈlɛər i ə /
noun Mineralogy.
a sometimes opalescent variety of orthoclase formed at a low temperature.
Origin of adularia
Words nearby adularia
adsum,
adterminal,
adts,
aduki,
adularescent,
adularia,
adulate,
adulation,
adulatory,
adullamite,
adult
British Dictionary definitions for adularia
adularia
/ (ˌædjʊˈlɛərɪə) /
noun
a white or colourless glassy variety of orthoclase in the form of prismatic crystals. It occurs in metamorphic rocks and is a minor gemstone. Formula: KAlSi 3 O 8
Word Origin for adularia
C18: via Italian from French
adulaire, after
Adula, a group of mountains in Switzerland