The word earth is different from the word dust. "And the LORD God formed man
of the
dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul." (Genesis 2:7) Now of course the "breath of life" is the most important part of this. Still this is the FIRST reference in the Bible to the word dust. The first letter of this word is TET. This represents the goodness of the Earth and points to Heaven and Earth. Just as Tyson and Sagan tells us, we are star stuff, we are made up of the same stuff that makes up the entire universe. Even the natural laws here on the Earth are universal and we find those laws everywhere we go in the universe.
Why don't you just listen to this one video. On the first letter in the word dust. It is only four minutes long so even if you can last for 2 minutes and make it half way though the video. Hebrew can be easy. The first time a word is used sets the pace for all the future uses of that word. The first letter in a word sets the meaning of that word.
The word ground in "dust of the ground" is Adamah. They do start to translate this as Earth later on in Genesis. But for now our focus is on the word "dust". The first letter in the word dust. Because that well set the tone for the entire statement of "dust of the ground". The dust has to do with the elements and the ground or Adamah has to do more with the generations and how the populates of the earth evolved. For now it is enough just to understand the meaning of the first letter of these two words. These are words you could write a whole book about and you would just be getting started in your understanding.