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Lizardstone from Arizona

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Toad misunderstood rock expert Only rocks understand me. Member since September 2004 Posts: 12,798	Lizardstone from Arizona Oct 20, 2009 9:12:23 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Toad on Oct 20, 2009 9:12:23 GMT -5 Anyone know what this is, what's its made of, hardness, etc...?
	Convinced myself, I seek not to convince.

Toad
misunderstood rock expert

Only rocks understand me.

Member since September 2004
Posts: 12,798

Lizardstone from Arizona Oct 20, 2009 9:34:57 GMT -5

Quote

Post by Toad on Oct 20, 2009 9:34:57 GMT -5

Found this auction saying it is silicated rhyolite. Would it tumble well? I have a question out to the seller, but would appreciate any expertise here. What exactly is silicated rhyolite?

cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&Item=190336766553&Category=3225&_trkparms=algo%3DLVI%26its%3DI%26otn%3D1

Convinced myself, I seek not to convince.

johnjsgems
gets rocks for Christmas

Member since August 2007
Posts: 6,959

Lizardstone from Arizona Oct 20, 2009 9:42:36 GMT -5

Quote

Post by johnjsgems on Oct 20, 2009 9:42:36 GMT -5

Usually when someone says well silicated or well silicified (don't know if either are words) they mean enough silica content to take a polish. Silicated dino bone would be agate/jasper replacement able to take a polish. I'm guessing they mean non-porous rhyolite able to take a polish.

John at JS Gems

www.jsgemslapidary.com

frane
misunderstood rock expert

Member since July 2008
Posts: 11,015

Lizardstone from Arizona Oct 20, 2009 18:43:34 GMT -5

Quote

Post by frane on Oct 20, 2009 18:43:34 GMT -5

Any lizzardskin that I have worked, and I have only had 2 pieces, has been kind of soft. Maybe in the 4 or 5 scale. Unless it seems harder, I don't think it will do well in a tumbler unless you use a gentle cycle and maybe do a dry polish at the end. Not sure, just thinking out loud.
Fran

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Welcome to the Rock Tumbling Hobby Forum where we share a love of rocks and a sense of community as enduring as the stones we polish. The RTH Forum of www.RockTumbling.com is an Amazon Associate site and we earn money from qualifying purchases you make after clicking on our links such as this Rock Tumbling Supplies on Amazon link for instance, or any of our various product ads and banners. By clicking our links every time you begin your Amazon shopping experience, you are generating a bit of revenue for the forum which helps us cover our expenses. Thank you for your support!