Lithops seem to germinate in waves - a bunch the 1st few days, then again 5-6 days, then a wave of stragglers in 10 days, and if they haven't rotted yet, the real slow pokes will show themselves another week later

Great!

But I'm getting impatient... I need something else to do to occupy my time until the rest start to spring up.

Guess I'll start repotting my aloes and maples.

Ho-hum ... hard to be sure, but I don't think that's a Lithops. Maybe, post again in a few days.

Commercial Lithops seed usually germinates all at the same time. I find 7-10 days but it can be quicker if you keep them very warm. Very fresh seed will sometimes germinate in waves as described, presumably part of a mechanism to prevent the whole seed load being wasted by germinating in the wrong rain shower. Store the seed for a few months and it generally ends up germinating together.

Interesting about the germination processes of germinating in waves... seems to make sense.

About the seedling itself, Shrubs I hope you're wrong but now that I think about it you could be right. I've got 2 others germinating and they don't look like that one. They're a single body. This one looks as if it's got 2 leaves; unless of course it's 2 lithops germinating right against each other. That's a possibility since it's sooooo tiny. Hopefully that's it.

Yes, even Lithops seed leaves are closely fused together. Many are just a little ball or cylinder with a barely visible hole on top, a few are more like mushrooms, but I don't know of any with two distinct seed leaves. It looks like it may be a different kind of mesemb, maybe you'll have a bonus plant :)

BONUS! Haha, we'll see.

If it is a different kind of plant then one of three things happened...
1) Mesa Gardens incorrectly packaged or incorrectly included a seed from a different species (which I highly doubt considering their awesome reputation).
2) I personally incorrectly sowed or labeled my pots
3) A seed from another type of mesemb I was sowing got stuck on my finger or under my nail and fell off into the Lithops pot (my guess).

I guess we'll see in a few months!

Here's another one. The Leaf bodies are clearly visible in this picture and it definitely looks like a Lithop.

{{gwi:592152}}

That's a Lithops, a big one like L. lesliei or L. pseudotruncatella.

Excellent! Thanks Shrubs!