The Virtues Of Dust.

As-Salaam alaikum, 
  Prophet Adam, alaihi Salaat Wassalaam, was created  of Clay, a mixture of dust and water.
Iblis/Satan was a Jinn, created of fire. In the Holy Qur'an, Allah Ta'ala says :-
 
 "WE CREATED MAN FROM AN EXTRACTION OF CLAY" (23:12)

In other words, he was extracted from every region - sweet and briny, soft and hard. In Adam's clay were salty and sweet, coarse and soft - so the nature of his children have become diverse.
And in the Qur'an we learnt of when Iblis, yhe accursed one said :- "I am better than he (Adam) : You created me of fire and You created him of clay" (38:76) Here, Iblis concluded that fire is better than clay, but this was/is an erroneous conclusion!

 In his book, 'Kashf al-asrar wa uddat al-abrar (The Unveiling of the Secrets and the Provisions of the Pious)', Sheikh Rashid al-Din Maybudi, explains that dust (clay) is superior to fire in his commentary on the verse or ayat that tells people how to make ablution if water is not available :--

 "IF YOU FIND NO WATER, HAVE RECOURSE TO GOODLY DUST" (5:6)
  
 Here, Allah Ta'ala connected purification to water or, to dust, and not to anything else. 
Dust is better than fire. Fire shows defects, and dust conceals them. 
Fire's nature is arrogance, so it seeks to be higher. Dust's nature is humility, so it seeks to be lower. Iblis brought higherness with his words : "I am better..." (38:76)
Adam brought lowerness, humility with his words : "Our Lord, we have wronged ourselves" (7:23).

 So, do not look at the form of dust. Look at the secret of the nature. When you give a grain to dust, it gives back many times over. Whatever you give to fire, it burns it away. 
Plant your grain (seeds) into the dust (ground), and it will nurture it after a short time, and she would give it back as a produce many times over "in every ear a hundred grains" (2:261).