What's the difference between mining and mullock?

Mining

Definition:

(p. pr. & vb. n.) of Mine
(v. i.) The act or business of making mines or of working them.
(a.) Of or pertaining to mines; as, mining engineer; mining machinery; a mining region.

Example Sentences:

(1) We are pursuing legal action because there are still so many unanswered questions about the viability of Shenhua’s proposed koala plan and it seems at this point the plan does not guarantee the survival of the estimated 262 koalas currently living where Shenhua wants to put its mine,” said Ranclaud.
(2) If Cory Bernardi wasn’t currently in a period of radio silence as he contemplates his immediate political future he’d be all over this too, mining the Trumpocalypse – or in our domestic context, mining the fertile political fault line where Coalition support intersects with One Nation support.
(3) The mining activity does not seem to have contaminated drinking water significantly.
(4) I think of tattoos as art, but also, every time I look at mine, I relive the emotions I felt when I had them.
(5) Instead the textbook simply reads: "Traditional industries, such as shipbuilding and coal mining, declined ... during her premiership, there were a number of important economic reforms within the UK".
(6) I watched as she made the briefest eye contact with me on their way back, the flicker of hurt and sadness in her eyes reflecting mine, before the shutters came down.
(7) The story and the characters of Girl Online are mine.” Facebook Twitter Pinterest Zoe Sugg, aka Zoella with her debut book ‘Girl Online’.
(8) From the large database available, there is no evidence of a consistent association between any particular cell type and specific mining exposure.
(9) She consciously destroyed the workforces in places like the railways, for example, and the mines, and the steelworks … so that transition from adolescence to adulthood was destroyed, consciously, and knowingly.
(10) Its few remaining mines involve people digging coal out of hillsides.
(11) That stake in eight Indonesian coal mines represents 1GT of future carbon dioxide emissions, more than Germany’s annual output.
(12) Merrin, 64, worked at the mining group Sherritt for 10 years and rose to be chief operating officer before leaving in 2004.
(13) This brings lads like 12-year-old Matthew Mason down from the magnificent studio his father Mark, from a coal-mining town ravaged by pit closures, lovingly built him in the back garden at Gants Hill, north-east London.
(14) After allowance for the fact that regression analyses suggested that the proportion of tremolite in dust was probably 2.5 times higher in Thetford Mines, Quebec, than in Charleston, the results from both matched pair and stratification analyses of tremolite fibre concentrations in lung were almost the same as for chrysotile.
(15) One hundred and twenty five patients with non-specific lung diseases were exa mined with a view to the relation and interrelations between lung ventilation, acid base equilibrium and lipopectic lung function.
(16) An intelligence officer told Associated Press that they were aware of the movement, but that the military is acting with care as many civilians are still trapped in the town and Boko Haram is laying land mines around it.
(17) In the southern state of Karnataka, corruption is blamed for uncontrolled mining in vast areas of protected forest.
(18) In the still active mine workers, dynamic spirometry results showed no difference between smokers or nonsmokers or between underground and surface workers.
(19) Iodine content of iodinated salt intended only for human consumption was eyamined in samples from all domestic manufacturers (salt mines in: Tuzla, Pag, Ulcinj, Ston, Nin, Seca-Portoroz).
(20) The ability of these women to tell their stories – and mine to translate them for the authorities in whose hands their fates lie – is intrinsic to their ability to find safety and, hopefully, get justice.