What Make The Crystal React

When Alex touched them, the material felt like wood. He tried to scrape part of it and found out that it wasn't colored; the wood's natural color was green.

He then turned his gaze toward another object, a tablet that was made with the same green wood material. But this one was carved with many symbols.

'Vesa, do you recognize these words?'

[Let me analyze this first, King. It will take a while.]

'Sure.' 

He then continued to another object; the next one was made from a similar material to the crystal, but this one was carved like a lens and put in some frame, allowing people to hold the object on the left and right. 

With its size, it looked like a wok, but Alex doubted its use was for cooking.

The next object was also made with the same crystal, but this one is unique. It's diamond-shaped, with a unique pattern carved in the middle of it.

The diamond-shaped crystal was polished, making it look beautiful, just like jewelry.