I thank the following researchers and a stone shop; Dr.Kiyonobu Niida (https://apoi-geopark.jp/geological_institute/)
suggested me the method using a diamond plate as an alternative to a
glass with abrasives, and guided us to the geological sites in Horoman
area, including Horoman peridotites.
Mr.Mamoru Miyazaki, an amateur geologist living in Mie Prefecture, gave
us much advice about making a homemade rock-saw and related technics.
My old friend, Dr.Takanori Bessho gave me his polarized microscope and
provided me much useful technics for making and observing thin-sections.
Mr.Rei Mitsuhashi (a laboratory teacher of Tennoji Highschool attached
to Osaka-Kyoiku University) made same tools of mine for thin-section
making and carried out many trials for the use of the diamond saw and
the rotating grinder. Also, he tried to make 3D printer models for
making thin-sections to evaluate the process of grinding. His trials and
results are very much useful to improve my tools and method.
Mr.Yuki Adachi(Manager of Osaka Sekizai Minami-osaka stone dealer, https://osakasekizai-minamiosaka.com/) provides us many polished rock samples.
