13323
Tilted D - spacing angles were found to correlate with decreased D - spacing measurements , an effect that can be removed with a tilt angle correction , resulting in no concentration dependence of D - spacing distribution on muscovite mica .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None