umptekite

U1M3P3T1E1K5I1T1E1

noun

A syenitic rock consisting of microperthite, arfvedsonite, aegirine and, possibly, nepheline.

“The rock-mass in which this umptekite form of hornblende occurs may therefore be called umptekite gabbro.”

Scrabble 17
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounumptekite (countable and uncountable, plural umptekites)

plural umptekites

  1. countableuncountablechemistryA syenitic rock consisting of microperthite, arfvedsonite, aegirine and, possibly, nepheline.

    The rock-mass in which this umptekite form of hornblende occurs may therefore be called umptekite gabbro.

    2 more examples

    The Beverly syenite includes the alkaline syenites of Beverly, Manchester, Salem, and Marblehead, comprising pulaskites and umptekites.

    1920, Alfred Reginald Schultz, Oil Possibilities in and Around Baxter Basin, page 85

    There Strauss & Truter record a gradual transition from the white umptekite (fenite) to a pulaskitic rock with nepheline.

    1956, The Quarterly Journal of the Geological Society of London, page 210
Cite this entry
APA

umptekite. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/umptekite

MLA

“umptekite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/umptekite. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “umptekite,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/umptekite.

Source: umptekite on Wiktionary, CC BY-SA 4.0.