Botryoidal

Botryoidal

A botryoidal texture or mineral habit is one in which the mineral has a globular external form resembling a "bunch of grapes" as derived from the Greek. This is a common form for many minerals particularly hematite where it is the classically recognized shape. It is also a common form of goethite and malachite.

References

* Klein, Cornelis and Cornelius S. Hurlbut, Jr.; 1985; "Manual of Mineralogy"; Wiley; 20th ed.; p 199; ISBN 0-471-80580-7


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  • botryoidal — [bä΄trē oid′ l] adj. [< Gr botryoeidēs(< botrys, bunch of grapes + eidēs, OID) + AL] resembling a bunch of grapes: also botryoid …   English World dictionary

  • Botryoidal — Botryoid Bot ry*oid, Botryoidal Bot ry*oid al, a. [Gr. ? cluster of grapes + oid.] Having the form of a bunch of grapes; like a cluster of grapes, as a mineral presenting an aggregation of small spherical or spheroidal prominences; as, botryoidal …   The Collaborative International Dictionary of English

  • botryoidal — adjective Etymology: Greek botryoeidēs, from botrys bunch of grapes Date: 1816 having the form of a bunch of grapes < botryoidal garnets > …   New Collegiate Dictionary

  • botryoidal — botryoidally, adv. /bo tree oyd l/, adj. Mineral. having the form of a bunch of grapes: botryoidal hematite. Also, botryoid, botryose. [1810 20; < Gk botryoeid(és) shaped like a bunch of grapes (bótry(s) bunch of grapes + oeides OID) + AL1] * * * …   Universalium

  • botryoidal — bot•ry•oi•dal [[t]ˌbɒ triˈɔɪd l[/t]] adj. Mineral. mir having the form of a bunch of grapes: botryoidal hematite[/ex] • Etymology: 1810–20; < Gk botryoeid(ḗs) (bótry(s) bunch of grapes + oeidēs oid) + al I bot ry•oi′dal•ly, adv …   From formal English to slang

  • Botryoidal Spring — is a geyser in the Lower Geyser Basin of Yellowstone National Park in the United States.Botryoidal Spring is part of the White Creek Group which includes A 0 Geyser and Spindle Geyser. As its name indicates, Botryoidal Spring was formerly a hot… …   Wikipedia

  • botryoidal — adj. [Gr. botrys, bunch of grapes; eidos, form] In the form of a bunch or cluster of grapes …   Dictionary of invertebrate zoology

  • botryoidal — adjective Having the form of a bunch of grapes …   Wiktionary

  • botryoidal — [ˌbɒtrɪ ɔɪd(ə)l] adjective (chiefly of minerals) shaped like a cluster of grapes. Origin C18: from Gk botruoeidēs (from botrus bunch of grapes ) + al …   English new terms dictionary

  • botryoidal — bot·ry·oi·dal …   English syllables

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