What the Weekend Grew
I don't remember being told what would happen. That was the whole point of it — you left a plain, ordinary, unglamorous rock on a Friday afternoon and you had no real reason to expect anything from it by Monday. And then you came back and it wasn't a rock anymore. It had grown something. I don't think I have ever quite gotten over that.
It took me a long time to place the second half of the memory, the one sitting just behind it. My grandmother kept a shallow dish going the same way, on her own shelf, out of the way of the kitchen but never hidden. I don't know how old I was when I finally put the two things together — the classroom and the shelf — but once I did, I couldn't unsee it. She wasn't doing a kid's science project. She'd been doing this long before Mrs. McDade ever handed out a lump of coal to a room full of second graders, and she called what was left in the dish by a name I'd hear again and again once I was old enough to be let into that part of her world: black salt.
Describing the Stone
Coal is a sedimentary rock, formed from plant matter buried under swamp and sediment for millions of years and compressed by heat and pressure until it turned combustible and black. It comes in grades — soft, sooty bituminous coal on one end, and hard, dense anthracite on the other, the kind that burns cleanest and holds the sharpest edge when it breaks. Anthracite is the coal of Pennsylvania in particular, the kind that ran under a good stretch of Appalachia, including the ground my own family came up out of.
It isn't a crystal and it isn't technically a gemstone by any strict mineralogical definition — it's organic, not mineral, more closely related to amber than to quartz. But it earns its place on a shelf of stones the way amber and jet do: dug from the earth, carried in the hand, and long treated as something with its own quiet power, whatever the textbooks want to call it.
The Tommyknockers
Appalachian coal country carries its own mine spirits, and they came over with the miners who first worked it. Cornish and Welsh immigrants brought the belief with them into western Pennsylvania mines as early as the 1820s, and it spread down through the coal towns from there — small, unseen figures who dressed and worked like the miners themselves, said by some to be the spirits of men who had died underground, and by others to be something older than that, tied to the mountain rather than to any one death.
The Tommyknockers knocked on the coal seams to warn of a cave-in coming, and a miner who heard that knocking and didn't leave was considered a fool. Whistling underground was taken as an insult to them. And every miner I've ever read about, or heard about secondhand through family, carried a little more in the lunch pail than he needed — a crust of bread, the last bite of something, set aside on purpose and left behind as an offering. Keep the Tommyknockers fed and they were closer to guardian angels than nuisance; some mining outfits wouldn't send a crew down until they'd been assured the Tommyknockers were "on duty." Cross them, though, and your tools went missing, or got hidden right where you'd swear you left them.
I have to think this is where Hollywood got the idea of knocking on a wall to see if anything knocks back.
Coal at the Threshold
Long before coal meant punishment in a Christmas stocking, it meant the opposite. In the Scottish and Northern English custom of first-footing, the first person to cross a household's threshold after midnight on New Year's carried gifts in with them — coal among the most important — to set the tone for the year to come. The coal stood for a warm hearth and fuel enough to see the family through the rest of winter, alongside salt for flavor, bread for food, and a coin for money. A house that got its first-foot right, coal and all, was thought to be set up for a lucky year. It's worth sitting with that for a second: the same lump that scares a child on Christmas morning was, in an older tradition, exactly what you hoped would walk through your door.
Working With Coal
Element
Earth, born of Fire
Chakra
Root
Primary Work
Protection, threshold luck, and quiet transformation
Grow Your Own Coal Crystal Garden
This is the second-grade experiment, grown-up version — the same one that ends, if you let it, on my grandmother's shelf instead of in a classroom.
- Raw mineral coal chunks, broken into small, fist-sized pieces
- Non-iodized table salt, ¼ cup
- Laundry bluing, ¼ cup
- Clear household ammonia, 1 tablespoon
- Water, ¼ cup
- A shallow glass or ceramic dish
Arrange the coal chunks in a single layer in the dish. In a separate jar, combine the salt, water, laundry bluing, and ammonia, and stir until the salt fully dissolves. Pour the solution slowly over the coal until the pieces are soaked and a shallow pool has formed at the bottom of the dish. Set it in a quiet, draft-free spot and leave it be. Crystals will start climbing the coal within about a day, and will keep building for several days after that if you let them.
Cleansing & Charging
Coal doesn't ask for much. It comes out of the ground already having survived more pressure than most stones ever will, so a simple pass through smoke or a rest on the earth overnight is enough. Let it sit near your threshold if that's the work you're asking of it — that's the tradition it comes from.
I did not know, at seven, whose hands
had already taught me this —
only that something had grown
where I'd been told nothing would.
Grandma kept hers on a shelf, unhidden,
and called it by a name
I would not understand for years.