petrography

American  

[pi-trog-ruh-fee] / pɪˈtrɒg rə fi /

noun

1. the branch of petrology dealing with the description and classification of rocks, especially by microscopic examination.

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petrography British  

/ pɛˈtrɒɡrəfɪ /

noun

1. petrog. the branch of petrology concerned with the description and classification of rocks

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petrography Scientific  

/ pə-trŏg′rə-fē /

1. The description and classification of rocks, especially by means of microscopic analysis.

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Other Word Forms

• petrographer
  noun
• petrographic
  adjective
• petrographical
  adjective
• petrographically
  adverb

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Etymology

Origin of petrography

From the New Latin word petrographia, dating back to 1645–55. See petro- ¹, -graphy

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Example Sentences

See Examples For:

petrography

The team then examined thin slices of the fragments under a microscope using a technique called petrography.

From Science Daily ● Oct. 6, 2026

Endress, M., Spettel, B. & Bischoff, A. Chemistry, petrography and mineralogy of the Tonk CI chondrite: preliminary results.

From Nature ● Nov. 28, 2017

Delicate cleavage-plates of gypsum are used in microscopic petrography for the determination of certain optical constants in the rock-forming minerals.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" by Various

A feature of his tenure of office was the impetus given to microscopic petrography, a branch of geology to which he had devoted special study, by a splendid collection of sections of British rocks.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

Thus from mineralogy and petrography it contains information regarding the origin and subsequent mutations of minerals and rocks.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various

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