damammy
has rocks in the head
Member since January 2009
Posts: 697
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Post by damammy on Apr 15, 2009 18:56:24 GMT -5
This is a large 30 to 40 lb rock is sliced on one end. I just don't know what it is. Thanks for your help with ID. Donna This is the rough side
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Post by kap on Apr 15, 2009 19:30:01 GMT -5
Donna I saw it in your moving rocks post and was going to ask you what it was . Keith
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Post by Michael John on Apr 16, 2009 3:18:13 GMT -5
Hehehe yeah, I saw that in your other post and was gonna ask you about it, too! You should send it to me for further examination! LMAO
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,456
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Post by Sabre52 on Apr 16, 2009 9:57:14 GMT -5
Not too may rocks that color. Without knowing any of the characteristics other than color in your photo, I'd take a guess and say it might be the violet/pink variety of dumortierite that comes out of Nevada. Very unlike the deep blue we used to get in California. Only a guess based on the pic though.....Mel
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Post by sitnwrap on Apr 16, 2009 11:08:00 GMT -5
That is one really pretty purple rock. Would love to see some cabs from that baby.
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Post by Michael John on Apr 16, 2009 11:48:02 GMT -5
Thanks, Mel!!! I googled "dumortierite", and that's what MY purple mystery stone is! The odd part is that it's commonly found in northwestern Nevada, but I found mine just south of Death Valley. It's REAL pretty stuff, and much harder to break with a hammer than agate.
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Post by Michael John on Apr 16, 2009 11:50:55 GMT -5
The name "dumortierite" seems kinda creepy though ... mort ... "the death rock"
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rallyrocks
fully equipped rock polisher
Member since November 2005
Posts: 1,507
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Post by rallyrocks on Apr 16, 2009 12:39:02 GMT -5
The name "dumortierite" seems kinda creepy though ... mort ... "the death rock" Actually; Dumortierite was first described in 1881 for an occurrence in Chaponost, in the Rhône-Alps of France and named for the French paleontologist Eugene Dumortier (1803-1873) (probably came from a family of undertakers)
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,456
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Post by Sabre52 on Apr 16, 2009 15:43:50 GMT -5
MJ: I was wondering about your purple rock. Great to find rocks in that color anytime. The deep blue stuff from Indian Pass further south on the Colorado desert is a favorite material of mine. Sometimes it's not too quartzy and is kind of crumbly but man, when you get a good piece, it's really pretty stuff. Easy to see how it's sometimes called Desert Lapis. I just tumbled some and it even had micaceous inclusions that gave it an aventurine-like sparkle. Cool stuff!.....Mel
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damammy
has rocks in the head
Member since January 2009
Posts: 697
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Post by damammy on Apr 16, 2009 18:59:43 GMT -5
Thanks Mel for the ID, it is pretty and you don't see many purple rocks. I agree with MJ it should be called Rasberry Sorbet or something on that line. Donna
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Post by Michael John on Apr 17, 2009 4:13:39 GMT -5
Mel, I wasn't referring to the purple jasper. I found ONE piece of the weirdest stuff I ever saw, and I hadn't been able to identify it until now. I'll take a pic of it tomorrow.
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Post by mohs on Apr 19, 2009 0:29:42 GMT -5
not sure what it is but I think this 1/2 is of the same the pic is a fairly good representative of color lavender & quite soft to the grind
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Post by Michael John on Apr 19, 2009 1:06:58 GMT -5
Ooops, forgot to take the pic ... better leave myself a note on my desk for tomorrow.
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Post by mohs on Apr 19, 2009 10:30:24 GMT -5
hey Michael they have a vitamin for improving memory but I forget the name of it
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Post by Michael John on Apr 19, 2009 21:44:58 GMT -5
Hehehe if it wasn't for the note I left myself I probably would have forgotten again! Okay ... is this "dumortierite"? ... And here's what the outside of the rock looks like...
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