Page 107 - Abstract book - TJSSF-2020

Thailand – Japan Student Science Fair 2020 (TJ-SSF 2020)
“Seeding Innovations through Fostering Thailand – Japan Youth Friendship”

Study the Boxwork in Koh Gwarng, Satun

Phrueksa Piriya , Fatiha Chanthep
1
1
Advisors: Yindee Chunuan , Sawasdee Yordkayhun
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1

Princess Chulabhorn Science High School Satun
1
Prince of Songkla University
2

Abstract
The research to identify the quantity, type and period of steel like rock Koh Gwarng, Satun therefore,
experiment by using multimeter to test electricity and electric potential then take the sample has made
the research by collecting sample rocks from this island and to test to identify the type and quantity of
mineral at the Science Instrument Center, Prince of Songkhla University by using X-Ray Diffraction
(XRD) machine with reference intensity ratio and the result is carefully analyzed. From the result of
this research, no electricity and electric potential is found. When tested with acetic acid. The results
showed no change and found that there are 5 kinds of mineral rocks that can withstand corrosion over
such as Quartz ; Silicon Oxide , Goethite ; Iron Oxide Hydroxide , Kaolinite-1A ; Aluminum Silicate
Hydroxide, Illite – 2M2 (NR) ; Potassium Aluminum Silicate Hydroxide Hydrate and Rutile, syn ;
Titanium Oxide by sediment had accumulated from flowing seawater. This process created rocks and
mineral from accumulation and pressure had caused the break of rocks into different shapes and forms.
When seawater receded and rocks emerged, rocks made contact with Oxygen and became Oxide among
mineral and caused some rocks to have rusty color and found that there are 5 kinds of mineral rocks
that can withstand corrosion lesser such as Quartz, 83% Silicon Oxide, Kaolinite-1A, 10% Aluminum
Silicate Hydroxide, Illite-1M, 5% Potassium Aluminum Silicate Hydroxide, Goethite, 2% iron Oxide
Hydroxide, Anatase and 1% Titanium Oxide from seawater were left in less quantity. Partitions that
stuck out are more resistant to corrosion remained in larger quantity we call this process “Boxwork”.

Keywords: Quartz, Goethite, Kaolinite, Illite, Anatase, Rutile

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