Could the sample material be acrylic?
Why or why not is the sample material acrylic?
Could the sample material be diamond?
Why or why not is the sample material diamond?
Could the sample material be fluorite?
Why or why not is the sample material fluorite?
Could the sample material be glass?
Why or why not is the sample material glass?
What was the sample material made of?
Provide 5 pieces of data that led you to choose answer 9?