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Let's Rock => Rockhounding Tips, Maps, Trips Etc. => Topic started by: 55fossil on May 16, 2016, 07:53:56 PM

Title: White Lightning in black basalt
Post by: 55fossil on May 16, 2016, 07:53:56 PM
    I went wandering off the beaten track two weeks ago and found some basalt with white patterns in it that resemble lightning. I have to give credit to a badger for showing me where the rock was. All the rocks you could see in the area were covered in moss and lichens. The area around the badger hole was littered with bright black basalt. I have not cut any cabochons yet. Many of the moss covered boulders were actually basanite. The basalt goes from a coarse texture all the way to a very fine grained basanite. Some has minor jasper inclusions as well as some being jet black. Hope you enjoy the pictures.  neal

The first picture is of the rock found by the badger hole. I will have to go back and do more searching. It looks as if this is a volcanic vent as there is very little basalt in the area. It is almost all ash flows from eruptions.
Title: Re: White Lightning in black basalt
Post by: 55fossil on May 16, 2016, 07:55:28 PM
Here are a couple more pictures....
Title: Re: White Lightning in black basalt
Post by: Enchantra on May 16, 2016, 08:41:12 PM
That is pretty darned cool!  Basalt brecciated and then filled in with some other mineral.  Some of those patterns are quite nice!  You will have to post the cabs when you get a chance.
Title: Re: White Lightning in black basalt
Post by: hummingbirdstones on May 16, 2016, 09:29:23 PM
I agree.  Almost reminds me of Picasso Jasper.  Very cool find!   :headbang:
Title: Re: White Lightning in black basalt
Post by: Kaljaia on May 16, 2016, 10:04:05 PM
Awesome material! Love those badgers for mounding up interesting stuff when they dig. Will the basalt take a shine?
Title: Re: White Lightning in black basalt
Post by: rocks2dust on May 17, 2016, 01:49:05 AM
Yes, that is a very attractive contrasty pattern. I've seen similar where the white was common opal. Basalt can take a good shine (same as porphyry) and basanite an even better.
Title: Re: White Lightning in black basalt
Post by: Orrum on May 17, 2016, 05:29:17 AM
Really awesome Neal!   Hey you hound a bunch and I need someone to answer a question. Is there knapping grade opalite out there? Seems like all the books talk about it but it doesn't sound like it's big enough to knapp?  Thanks, Bill
Title: Re: White Lightning in black basalt
Post by: 55fossil on May 17, 2016, 07:02:30 PM
Hey Orrum;   Opalite is in the same category as black jasper with me. I only know what people have told me, and there have been a lot of different and conflicting stories. Is opalite just common opal or????  Wish I could be more help, good luck.  neal
Title: Re: White Lightning in black basalt
Post by: Orrum on May 18, 2016, 06:39:12 AM
Hey thanks Neal that's what I keep finding out. I think opalite is s rare hard to find rock. I only can find pieces that make very small arrowheads. Hope your retirement is letting you get out n prospect more now!