206222
Technique To perform a point count using the Gazzi-Dickinson method , a randomly selected thin section from a sedimentary rock is needed , with a slide advance mechanism that will randomly select points on the slide with a petrographic microscope .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None