noun Etymology: French geysérite, from geyser, from Icelandic Geysir Date: circa 1814 a variety of opal that is deposited around some hot springs and geysers in white or grayish concretions
GEYSERITE
Meaning of GEYSERITE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012