Applying to join this forum, you HAVE to activate your membership in YOUR email in the notice you recieve after completing application process. No activation on your part, no membership.

Lapidaryforum.net

Please login or register.

Login with username, password and session length
Advanced search  

News:

Welcome new members & old from the Lapidary/Gemstone Community Forum. Please join up. You will be approved after spam check & you must manually activate your acct with the link in your email

Congratulations to Bobby1 and his Brazilian Agate Cab!

www.lapidaryforum.net

Another cabochon contest coming soon!

Pages: [1]   Go Down

Author Topic: Any ideas on this rock? Lajitas Tx  (Read 1830 times)

0 Members and 1 Guest are viewing this topic.

Rossie7

  • Newbie
  • *
  • Offline Offline
  • Posts: 10
Any ideas on this rock? Lajitas Tx
« on: January 02, 2017, 05:16:20 PM »
I find a lot of jasper and agate in this area someone suggested possibly opal?
Logged

lithicbeads

  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3216
Re: Any ideas on this rock? Lajitas Tx
« Reply #1 on: January 02, 2017, 06:14:01 PM »
It looks like a very interesting jasper .
Logged

Rossie7

  • Newbie
  • *
  • Offline Offline
  • Posts: 10
Re: Any ideas on this rock? Lajitas Tx
« Reply #2 on: January 02, 2017, 07:11:10 PM »
Thank you
Logged

ZEKESMAN

  • Newbie
  • *
  • Offline Offline
  • Posts: 12
Re: Any ideas on this rock? Lajitas Tx
« Reply #3 on: January 03, 2017, 11:26:53 AM »
How hard is it? will a knife scratch it?   Vic
Logged

Rossie7

  • Newbie
  • *
  • Offline Offline
  • Posts: 10
Re: Any ideas on this rock? Lajitas Tx
« Reply #4 on: January 04, 2017, 08:00:49 AM »
I'll try scraping it and let you know
Logged

Enchantra

  • Head Bead Nut
  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2807
  • Insane Bead Woman
    • Enchanted Regalia
Re: Any ideas on this rock? Lajitas Tx
« Reply #5 on: January 04, 2017, 08:36:25 AM »
I agree with the potential for it to be a jasper.  However there are also a lot of limestone deposits with colorful banding in Texas and most of the Southwest.  So it would be good to know the hardness as that will help with an ID. 
Logged

Rossie7

  • Newbie
  • *
  • Offline Offline
  • Posts: 10
Re: Any ideas on this rock? Lajitas Tx
« Reply #6 on: January 04, 2017, 09:05:36 AM »
So the rock is softer and I am able to scrape with a knife
Logged

Amethyst Rose

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 96
Re: Any ideas on this rock? Lajitas Tx
« Reply #7 on: January 04, 2017, 11:01:54 AM »
Looks like a Ironstone concretion to me.  Looks like a lot of the Yowah nuts from Queensland Australia.

Bob Johannes
The Amethyst Rose
Logged

ZEKESMAN

  • Newbie
  • *
  • Offline Offline
  • Posts: 12
Re: Any ideas on this rock? Lajitas Tx
« Reply #8 on: January 04, 2017, 11:12:31 AM »
It looks like alot of banded opal I see, just more colorfull. Not jasper If it can be scraped with a Knife.
Logged

Rossie7

  • Newbie
  • *
  • Offline Offline
  • Posts: 10
Re: Any ideas on this rock? Lajitas Tx
« Reply #9 on: January 04, 2017, 06:36:08 PM »
Very cool thank you for the help
Logged

Enchantra

  • Head Bead Nut
  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2807
  • Insane Bead Woman
    • Enchanted Regalia
Re: Any ideas on this rock? Lajitas Tx
« Reply #10 on: January 04, 2017, 10:15:26 PM »
If it scrapes with a knife, definitely not Jasper.  It could be a type of limestone or a banded opal.  However some of the opal is fairly hard.  On an area of the rock you don't care about put a couple drops of vinegar.  If it fizzes and bubbles, you have limestone.  If it doesn't fizz, probably the banded opal.
Logged

Rossie7

  • Newbie
  • *
  • Offline Offline
  • Posts: 10
Re: Any ideas on this rock? Lajitas Tx
« Reply #11 on: January 06, 2017, 07:57:29 PM »
Thank you for the help I will try the vinegar test
Logged
Pages: [1]   Go Up
« previous next »
 

Page created in 0.136 seconds with 48 queries.