The simplest polarized microscope using smart phones.      Yoshio Okamoto 7th March 2020

The thin-section making is http://seagull.stars.ne.jp/2020_Thin_Section/index.html
with Japanese captions.

Preparation
1. polarized film from Amazon

 https://www.amazon.com/Polarizing-Film-Sheet-Gadget-Electronics/dp/B004X3XFHU/


2. Clip-on micro lens for smart phone

https://www.amazon.com/Beileshi-Microscope-Magnifier-Universal-Mobile/dp/B00QA71BB4/


3. Smart phone

4. Thin-sections (making with photos and Japanese captions are http://seagull.stars.ne.jp/2020_Thin_Section/index.html)
file:///home/seagull/Desktop/2020_%E5%B2%A9%E7%9F%B3%E8%96%84%E7%89%87%E9%96%A2%E4%BF%82/iPM/half/img_4011.jpg file:///home/seagull/Desktop/2020_%E5%B2%A9%E7%9F%B3%E8%96%84%E7%89%87%E9%96%A2%E4%BF%82/iPM/half/img_6868.jpgimg_4008.jpg
All parts: iPhone, macro lens, polarized films, clip and thin-sections.
Macro lens 60x with LED (white and blue), clipped thin-section and PL films.
file:///home/seagull/Desktop/2020_%E5%B2%A9%E7%9F%B3%E8%96%84%E7%89%87%E9%96%A2%E4%BF%82/iPM/half/img_4004.jpg file:///home/seagull/Desktop/2020_%E5%B2%A9%E7%9F%B3%E8%96%84%E7%89%87%E9%96%A2%E4%BF%82/iPM/half/img_6855.jpg
You can easily get thin-section pictures like this. No LED light. 
Gabbro
file:///home/seagull/Desktop/2020_%E5%B2%A9%E7%9F%B3%E8%96%84%E7%89%87%E9%96%A2%E4%BF%82/iPM/half/img_6861.jpg file:///home/seagull/Desktop/2020_%E5%B2%A9%E7%9F%B3%E8%96%84%E7%89%87%E9%96%A2%E4%BF%82/iPM/half/img_6862.jpg
Diorite
 Granite


Pyroxenite at Dwars River mine in Bushveld, South Africa.
 Gabbro at Shionomisaki, Japan. Euhedron olivines contained in pyroxenes are beautiful.


Kink bands of olivnes. Lherzorite Horoman, Hokkaido.
 Kimberite at Premium mine, South Africa.


Dolerite at Campinas, Brazil.
Garnet andesite at Nijosan, Japan. Brown colored minerals are biotite.
Copyright © 2020 Yoshio Okamoto All Rights Reserved.