The phrase "a tiny speck of it" is correct and usable in written English.
It can be used to describe a very small amount or piece of something, often in a figurative sense.
Example: "In the vast universe, our planet is just a tiny speck of it, lost among countless stars."
Alternatives: "a minuscule part of it" or "a small fragment of it".
It's a tiny speck of the nation's thriving overall economy.
Caldwell said that while the market for electric vehicles is growing fast, it remains a tiny speck of overall automobile sales.
Rub your lips with clear lip balm, then cover it with a tiny speck of foundation.
When you look at the political map of the UK it shows Brighton as a tiny speck of green next to a tiny speck of red, all drowning in a sea of blue.
After World War II, he says, the Village enjoyed a renaissance, when it "served again as a tiny speck of American real estate where nonconformists, individualists, bohemians, progressives, avant-gardists, experimenters, gays and lesbians could gather and feel at home".
Control Method: Thoroughly digging out roots and stems takes years to succeed, if it ever does -- if even a tiny speck of stem remains, the plant will regenerate.
From his refrigerator, he took a clear plastic half-pint container of lump crab meat, inspecting it intently and picking out a tiny speck of shell.
The island's picnic areas offer stunning views across Sydney Harbour, and it is a priceless feeling to sit on a tiny speck of land in the middle of one of Australia's busiest harbours, watching the ferries and pleasure boats glide past the diamond-crusted waters.
Yet Ugly Shy Girl, Dockrill's second book, is an exercise in empathy with the sixth-form loner, the kind of girl who feels "like a tiny speck of dust that the Hoover has forgotten to suck up", as the book puts it.
It makes you feel like you're part of a community instead of a tiny speck of dust in the vast cosmos with no reason for existing beyond randomness.
