Crap. Guess I'm getting old. Thought I added this link to the previous post. I thought wrongly.

Lime - the Vital Fertiliser: Damn near everything you need to know about lime and soil ph. Do keep in mind though, they are mainly referring to garden and agricultural soils, not necessarily potting mixes. (for those growing outdoors in containers)

From the article: "Dolomite lime is similar to garden lime but contains a higher percentage of magnesium."
Rusty Trichome Reviewed by Rusty Trichome on . Difference between dolomite and garden lime? What is the difference between fine dolomite lime and garden lime / pulverized limestone? I use garden lime outside in my garden. I want to mix my own indoor potting soil that calls for one cup of fine dolomite lime. What's the difference? I've also heard of hydrated lime. Is that garden lime, either? Rating: 5