암석학 바이블, Principles of Igneous and Metamorphic Petrology (by J.D. Winter) https://www.whitman.edu/geology/winter/Winter_Principles%20of%20Igneous%20and%20Metamorphic%20Petrology%20by%20JOHN%20D.%20WINTER-1.pdf
https://www.whitman.edu/geology/winter/
광물-암석 시료 및 현미경 박편 사진 Alex Strekeisen; https://www.alexstrekeisen.it/english/
Geology is the way; https://geologyistheway.com/
Petrology 교육 사이트 Carleton Univ.; https://serc.carleton.edu/research_education/index.html
V. van Hinsberg; https://eps.mcgill.ca/~hinsberg/intro/Teaching.html
Optical mineralogy https://opengeology.org/Mineralogy/5-optical-mineralogy/
https://optical.minpet.org/
최덕근과 함께하는 지구탐구 최덕근 교수; https://contents.premium.naver.com/geokorea/knowledge
극지연구소 운석 큐레이션 센터 https://koreamet.kopri.re.kr