Bird's eye extinction
id:
bird-s-eye-extinction-301-7951836
title:
Bird's eye extinction
text:
Bird's eye extinction, or bird's eye maple, is a specific type of extinction exhibited by minerals of the mica group under cross polarized light of the petrographic microscope. It gives the mineral a pebbly appearance as it passes into extinction. This is caused when the grinding tools used to create petrographic thin sections of precise thickness alter the alignment of the previously perfect basal cleavage planes which split micas up into its characteristic thin sheets. The resulting, slightly
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Bird%27s_eye_extinction
date created:
date modified:
2023-07-23T13:12:01Z
main entity:
{"identifier":"Q4915807","url":"https://www.wikidata.org/entity/Q4915807"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/7/7c/Thomas_Bresson_-_Granite_vu_au_microscope_%28by%29.jpg","width":1024,"height":768}
fields total:
13
integrity:
14