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The shape of sand‐sized crushed quartz particles
Author(s) -
JANKE N. C.
Publication year - 1981
Publication title -
sedimentology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.494
H-Index - 108
eISSN - 1365-3091
pISSN - 0037-0746
DOI - 10.1111/j.1365-3091.1981.tb01936.x
Subject(s) - quartz , sieve (category theory) , mineralogy , geology , composite material , materials science , mathematics , combinatorics
The platy nature of sand‐sized quartz particles reported by Wellendorf & Krinsley (1980) is corroborated by the results of an exercise given in my optical crystallography course. In order to bridge the gap between the immersion oils technique and thin‐section work, the exercise asks the students to determine the sieve mesh‐size interval of crushed quartz particles that best corresponds to the standard thin‐section thickness of 0·03 mm, by determining the sieve interval which has the largest percentage of straw‐yellow interference colours. Consistently, this interval has been found to be the −140 to +170 mesh interval (0·10‐0·09 mm).