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Established in 2002, the Rock Tumbling Hobby Forum has long been the internet's most important resource for rock tumblers, lapidary artists, jewelry makers, and rockhounds from around the world. Whether it's tumbling rocks, cutting slabs, identifying rocks, polishing cabochons, wire-wrapping, fixing or building lapidary equipment, or any other facet of the lapidary arts - we gather here as a helpful community ready to assist you as you learn and grow with us.


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Most Recent Post

by jasoninsd
dreamrocks Avatar
jasoninsd Avatar
Ha Ha! Your pictures suck!

I had to do that! LOL

Been waiting for you to post these! Now...not only do I have to start cutting the opals I've got...I've got to get my pictures right when I post them! LOL
What are you talking about? You taught me how to take pictures!
Hahaha 🤪
Not yours...RRH's! LOL
by dreamrocks
It’s not a mica book they are stacked like a book similar to this
Sometimes the best way to tell with some opals are to cut a slab off it to see it

Mica books




by dreamrocks
jasoninsd Avatar
Ha Ha! Your pictures suck!

I had to do that! LOL

Been waiting for you to post these! Now...not only do I have to start cutting the opals I've got...I've got to get my pictures right when I post them! LOL


What are you talking about? You taught me how to take pictures!
Hahaha 🤪
by jasoninsd
...I believe #1 is a Mica "book"...

...I believe you are correct about the Honduran "Black Matrix" Opal

**Google "Blue Gem Silica"...then get your hopes up about that one you posted a couple hours ago!

The other one you posted with the "possible" Blue GS, looks like Parrot Wing Chrysocolla to me...

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forrest: I am starting out new rock hounder in the West Central Mountains of Idaho. I have neighbors that are semi-serious about finding usable gems and gold. The claim is 60ac. I have never polished, cut, or treated a gemstone. Found a few in some tailing piles. Jun 20, 2024 18:29:11 GMT -5
amygdule: 13oC here at 12:54 UTC Jun 20, 2024 19:55:35 GMT -5
parfive: Looks like Phoenix tickled 46 today. Jun 20, 2024 21:12:11 GMT -5
parfive: Meanwhile, the ol’ third rock’s currently smokin’ around 16.8 and looking down on last year’s record stint. Jun 20, 2024 21:12:39 GMT -5
RickB: Jun 21, 2024 5:58:15 GMT -5
AzRockGeek: Yeah..... But Phx will cool down to 109 with 50% chance of rain on Sat. (sunshine) (rotflmao1) Jun 21, 2024 8:55:03 GMT -5
rocknrob: I miss Tillamook dairy stuff! They're all about Darigold up here in Seattle. Is it an eating game in PHX to get a pint of ice cream and eat it before it turns to soup? Jun 21, 2024 11:40:14 GMT -5
ThomasT: Too hot to trot... Jun 21, 2024 13:03:58 GMT -5
RickB: Cat on a Hot Tin Roof Jun 21, 2024 13:52:50 GMT -5
amygdule: Orange George on the Roof
Jun 21, 2024 16:16:50 GMT -5 *
RickB: (thumbs-up) Jun 21, 2024 16:47:15 GMT -5
RickB: Dog on a Hot Tin Roof Jun 21, 2024 18:21:34 GMT -5
amygdule:  A Raccoon on hot pavement
Jun 21, 2024 20:25:42 GMT -5 *
RickB: Beetles on a hot crosswalk Jun 21, 2024 21:13:09 GMT -5
amygdule:  Jun 21, 2024 23:11:02 GMT -5
amygdule: If you're Lactose Intolerant, you can jump in the Ocean. Water temp 57.2°F. June 22, 2024
Jun 22, 2024 16:17:58 GMT -5 *
RickB: You're gonna need a bigger boat. Jun 23, 2024 10:17:46 GMT -5 *
RickB: Jun 23, 2024 10:19:26 GMT -5
amygdule: And another cigarette lighter
Jun 23, 2024 14:51:04 GMT -5
parfive: . . . and battery cables to jump the shark.
Jun 23, 2024 17:12:45 GMT -5
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