I think shilajit is humic shale. It does wonders for plants too. I get 50 pounds for $17 and it comes from this company:
https://www.livearth.com/product/soil-conditioner/
livearth.com Leading manufacturer of Humic and Fulvic acidsHumate Soil Conditioner | Humic Acid Conditioner - Carbon/Nitrogen Duo
Live Earth Humate Soil Conditioner is an organic soil amendment for use on all kinds of turfs, ornamentals, and crops. Soil balance restored!
https://www.livearth.com/product/soil-conditioner/
In response Jennie West to her Publication
I could barely walk in 2017 and consuming humic shale which contains over 70 colloidal minerals changed my life 😃