Pronunciation: [skˈɔːɹiə] (IPA) 
The word "scoria" is spelled with the IPA transcription /ˈskɔː.ri.ə/. The first syllable is pronounced with a /sk/ consonant cluster followed by an open-mid back rounded vowel /ɔː/. The second syllable begins with an alveolar flap /ɾ/ followed by a close front unrounded vowel /i/. The final syllable is pronounced with a schwa /ə/. Scoria is a volcanic rock formed from solidified lava, often used in landscaping and construction projects.
Scoria is a noun that refers to a dark, porous, and vitreous volcanic rock that is commonly found in various shades of red, orange, black, or brown. It is formed during volcanic eruptions when gas-rich volcanic lava rapidly cools and solidifies, resulting in the formation of small, air-filled cavities throughout the rock. These cavities give scoria its characteristic lightweight and porous nature.
Due to its physical properties, scoria is often used as a construction material in the form of crushed or ground particles. It is commonly employed as an aggregate for concrete, road construction, and landscaping due to its lightweight and drainage properties.
In addition to its practical applications, scoria holds significance in the field of geology and volcanology as a sign of volcanic activity and historical eruptions. By studying the composition and characteristics of scoria rocks, scientists can gain insights into the nature of past volcanic events and their specific conditions.
Furthermore, scoria can be utilized in the realm of horticulture as a soil amendment or mulch. Its porous structure allows for improved aeration and water drainage, making it beneficial for enhancing soil quality and promoting healthy plant growth.
In summary, scoria is a dark, lightweight, and porous volcanic rock formed through rapid cooling of gas-rich lava during volcanic eruptions. Its uses range from construction materials to geologic indicators and horticultural applications.
The scum, dross, or slag left from melted metals or ores; rejected matter; in geol., applied to accumulations of dust, ashes, cinders, and loose fragments of rocks, discharged from active volcanoes.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "scoria" is derived from the Latin word "scoria" which means "scoria, refuse, or dross". The Latin word itself comes from the Greek word "skōria" meaning "refuse of metal, dross". Ultimately, the Greek term is believed to have originated from the Proto-Indo-European root "*sker-" which means "to cut or separate". Scoria is a term used in geology to refer to a type of porous volcanic rock formed during volcanic eruptions.
