oolite

From oo- +‎ -lite, after German Oolit.

• (UK) IPA^(key): /ˈəʊəlʌɪt/

oolite (countable and uncountable, plural oolites)

1. (geology) A rock consisting of spherical grains within a mineral cortex accreted around a nucleus, often of quartz grains.
   • 2004, Richard Fortey, The Earth, Folio Society, published 2011, page 170:

     Here and there are beds of oolites, for example, made of little rounded grains – like millet seed – that form only in agitated warm waters, such as you might find off the Bahamas today.

2. (countable, rare) An ooid or oolith.

• ooid
• oolith
• egg-stone

• oolitic
• oolitiferous

• lootie, toolie

From oo- +‎ -lite.

oolite m (plural ooliti)

1. oolite; oolith