Mindat Logo

Definition of lutite

A general name used for consolidated rocks composed of silt and/or clay and of the associated materials which, when mixed with water, form mud; e.g., shale, mudstone, and calcilutite. The term is equivalent to the Greek-derived term 'pelite.' Etymol: Latin lutum, mud. Also spelled lutyte.
Ref: AGI
See Also: rudite, arenite

Lutite or lutyte.
a. A general name for all natural minerals composed of muds: that is silts, clays, and similar materials which when mixed with water form mud. Although many terms have been created by using lutite as a coming form, only a few are in current wide usage.
Ref: Stoak and Varnes, 1955.

b. A sediment or sedimentary rock consisting principally of clay or clay-sized particles.
Ref: A.G.I. Supp.

c. Grabau proposed a number of terms composed of this word with various appropriate prefixes: Anemoargilluite, anemolutite, argilutite, atmolutite, atomoargilluite, autoargilluite, autolutite, autosililuite, biolutite, calcilutite, hydragilluite, hydrocalcilutite, hydroferrilutite, hydrosilicilutite, pyrolutite, and silicilutite. These terms are intended to cover every type or variety of clayey or silty sediment.
Ref: G.G.I.

d. Material of grain size less than 4 microns. This term may be used in stead of clay to avoid mineralogical
Ref: H&G
Mineral and/or Locality  
Search Google  
Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: December 21, 2014 12:01:21
Mineral and Locality Search
and/or Locality:
Fade toolbar when not in focusFix toolbar to bottom of page
Hide Social Media Links
Slideshow frame delay seconds