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arkose

Upper-Intermediate (B2)

IPA: /ˈɑːrkəʊz/

KK: /ˈɑrˌkoʊs/

noun
Definition

A type of sedimentary rock made up of small pieces of feldspar and quartz, resembling coarse sand.


Example

The geologist studied the arkose to understand its formation and composition.


Conversation
Sloth A
Have you ever heard of arkose?
Sloth B
No, what's that?
Sloth A
It's a type of sandstone made mostly of feldspar and quartz.
Sloth B
That sounds interesting! I’ll have to look it up.

Synonyms & Antonyms
Synonyms
sandstone
gritstone
conglomerate
Antonyms
igneous
metamorphic
unconsolidated
Root Explanation

Arkose is derived from the Greek word "arkos" (ἄρκος), meaning 'sand' or 'gravel'. The suffix "-ose" is used in English to denote a full or abundant presence of a particular quality. Therefore, arkose refers to a type of sandstone that is rich in feldspar and typically contains a significant amount of sand.

Memory Tip

Think of 'arkos' meaning 'sand' and the suffix '-ose' indicating abundance, which helps you remember that arkose is a type of rock that is abundant in sand.

Visually Confused Words
arose
arouse
ariose
aerose
acrose
rose
arse
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