flowstone
noun
flow·stone ˈflō-ˌstōn 
: calcite deposited by a thin sheet of flowing water usually along the walls or floor of a cave
Example Sentences
Recent Examples on the Web The researchers, including experts from Johannesburg and France, examined radioactive decay in rocks buried at the same time as the fossils, whereas earlier estimates were based on calcite flowstone deposits. 
Ellen Francis, Washington Post, 29 June 2022 And younger flowstone can sometimes be found mixed in with old sediment. Ashley Strickland, CNN, 28 June 2022 From there a walking path goes through six geological strata, crosses a bridge over a chasm built by Russian prisoners during World War I and continues past underground clifftops and gorges, spaghetti-thin stalactites and flowstone curtains. John Malathronas, CNN, 3 Dec. 2021 The walls of the cavern, wreathed in flowstone, glittered in brown and gray. Alexis Soloski, New York Times, 27 Nov. 2019 And uranium-thorium dating said the flowstone couldn’t be any younger than 114,000 years. Kiona N. Smith, Ars Technica, 22 Feb. 2018 Forty to 70 feet below ground, stalactites and stalagmites meet to form columns, delicate soda straws dangle from the ceiling and flowstones cover the walls. Chelsey Lewis, USA TODAY, 16 Mar. 2018 Forty to 70 feet below ground, stalactites and stalagmites meet to form columns, delicate soda straws dangle from the ceiling and flowstones cover the walls. Chelsey Lewis, USA TODAY, 16 Mar. 2018 Forty to 70 feet below ground, stalactites and stalagmites meet to form columns, delicate soda straws dangle from the ceiling and flowstones cover the walls. Chelsey Lewis, USA TODAY, 16 Mar. 2018 See More
Ellen Francis, Washington Post, 29 June 2022 And younger flowstone can sometimes be found mixed in with old sediment. Ashley Strickland, CNN, 28 June 2022 From there a walking path goes through six geological strata, crosses a bridge over a chasm built by Russian prisoners during World War I and continues past underground clifftops and gorges, spaghetti-thin stalactites and flowstone curtains. John Malathronas, CNN, 3 Dec. 2021 The walls of the cavern, wreathed in flowstone, glittered in brown and gray. Alexis Soloski, New York Times, 27 Nov. 2019 And uranium-thorium dating said the flowstone couldn’t be any younger than 114,000 years. Kiona N. Smith, Ars Technica, 22 Feb. 2018 Forty to 70 feet below ground, stalactites and stalagmites meet to form columns, delicate soda straws dangle from the ceiling and flowstones cover the walls. Chelsey Lewis, USA TODAY, 16 Mar. 2018 Forty to 70 feet below ground, stalactites and stalagmites meet to form columns, delicate soda straws dangle from the ceiling and flowstones cover the walls. Chelsey Lewis, USA TODAY, 16 Mar. 2018 Forty to 70 feet below ground, stalactites and stalagmites meet to form columns, delicate soda straws dangle from the ceiling and flowstones cover the walls. Chelsey Lewis, USA TODAY, 16 Mar. 2018 See More Word History
First Known Use
1925, in the meaning defined above