Does Anybody Know What Type Of Driftwood This Is?

[Jackiee]

I bought a 90 gallon aquarium from some guy a couple weeks ago and two pieces of driftwood came with it, a smaller piece, and a pretty large piece,
and I haven't been able to pin-point exactly what type of wood either of them are.

Someone said they thought the smaller piece looked like Mopani Driftwood,
but nobody is sure on the larger piece, so here's some pictures:

The large piece (it wouldn't sink and lay down flat, so i stood up upright):

Here's the small piece:

Also, the large piece has random rocks set deep into the wood, you can see them in the picture, I thought this was a little strange?....

 

[drobbyb]

The wood is Mopani wood.

 

[Jackiee]

Okay, thank you.
Do you know if this wood has the potential to lower PH ?

 

[Squidward]

I have found that Mopani does not release that much tannin into the water.
It seems to be a lot harder than standard bogwood.

 

[Jackiee]

Dang it.. alright thanks.
I like the look of the wood, I just was hoping it would lower my ph as well.
looks like i'll just have to put in peat moss.
anybody know where you can get this? would it be in my LFS?