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Lava rock = Gas grill rock?

2950 Views 6 Replies 5 Participants Last post by  hatterbee
Can you use bags of "lava" rock that is sold at the hardware store for gas grills? This rock is small enough for a background and cheap, but I'm not sure it is the same thing you buy at the petstore. Any help?

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Sounds interesting. How will you set up the background with it? I've seen so many novel and inspired backgrounds on here...I'd like to see a photo of what you do.
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