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18 Sep-05:25:58 Re: malachite stalactites, katanga province (Jordi Fabre)
18 Sep-05:18:45 Re: malachite stalactites, katanga province (Peter Lemkin)
18 Sep-04:56:09 Malachite stalactites, katanga province (Roger Warin)
17 Sep-09:46:55 Re: tracing the dealer "minerals engineering" or brian petrovic (Tomcotterell)
17 Sep-09:30:37 Re: tracing the dealer "minerals engineering" or brian petrovic (Peter Megaw)
17 Sep-07:57:26 Minfind dot com is back! (Bob Kerr)
17 Sep-07:46:04 Re: sold as “green stilbite” (Alfredo)
17 Sep-07:18:23 Tracing the dealer "minerals engineering" or brian petrovic (Tomcotterell)
17 Sep-06:28:12 Re: sold as “green stilbite” (Charly H)
16 Sep-15:44:40 Re: sold as “green stilbite” (Pete Richards)
16 Sep-10:54:45 Re: sold as “green stilbite” (Charly H)
16 Sep-10:36:43 Re: sold as “green stilbite” (Bergur_e_sigurdarson)
16 Sep-10:12:03 Re: sold as “green stilbite” (Charly H)
16 Sep-05:57:03 Re: sold as “green stilbite” (Charly H)
16 Sep-05:55:13 Re: sold as “green stilbite” (Charly H)
16 Sep-01:26:21 Re: fulgurite (Peter Lemkin)
16 Sep-00:42:43 Re: sold as “green stilbite” (Jordi Fabre)
15 Sep-22:29:50 Re: sold as “green stilbite” (Matt_zukowski)
15 Sep-20:31:13 Re: sold as “green stilbite” (Bergur_e_sigurdarson)
15 Sep-20:14:50 Sold as “green stilbite” (Charly H)
15 Sep-17:02:00 Re: online catalog of the minerals of the igme collections - madrid community (Firmo Espinar)
15 Sep-16:16:11 Re: collection of sante celiberti (Sante Celiberti)
15 Sep-16:03:04 Re: fulgurite (B Glassburn)
15 Sep-09:59:38 Re: fulgurite (Matt_zukowski)
15 Sep-09:56:05 Re: fulgurite (Josele)

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  Topic: Not sure what to make of this stone
Ken

Replies: 2
Views: 897

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 23, 2021 22:09   Subject: Re: Not sure what to make of this stone
I looked at a lot of green mineral searching for a match and never came across epidote. Looks like a good match so I do think you may be right, cool, thanks.
  Topic: Not sure what to make of this stone
Ken

Replies: 2
Views: 897

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 18, 2021 21:29   Subject: Not sure what to make of this stone
This stone looks like it two types of minerals that make up one stone. It almost looks as if part of this stone has morphed, how common is this? I'm not sure as to what to label this stone as. Any ide ...
  Topic: Is this still quartz??
Ken

Replies: 7
Views: 1546

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 15, 2021 22:52   Subject: Re: Is this still quartz??
It's one rock with two different look. It has a hardness of 7.0 and no part reacts with acid. This rock was found in the California desert east of LA. There's mountain that has a slot cut into by rain ...
  Topic: Is this still quartz??
Ken

Replies: 7
Views: 1546

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 13, 2021 22:19   Subject: Is this still quartz??
I can't find anything that looks like this stone. It appears to be a piece of quartz that has undergone some sort of modification. It's the strangest looking quartz I've ever come across, anyone ever ...
  Topic: Magnetic serpentine?
Ken

Replies: 2
Views: 794

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 09, 2021 23:10   Subject: Re: Magnetic serpentine?
You're right about there being a lot of magnetite in that area, I do recall seeing a good deal of it around there. Thanx for the reply.
  Topic: Magnetic serpentine?
Ken

Replies: 2
Views: 794

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 07, 2021 21:45   Subject: Magnetic serpentine?
These stones all have a hardness of about 3.5 so I think they are serpentine. That last stone has a very odd shape, took me a while to figure it out. I've read that the magnetism is caused by magnetit ...
  Topic: A neat little quartz crystal
Ken

Replies: 1
Views: 1447

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 16, 2020 21:58   Subject: A neat little quartz crystal
I'm not searching for any answers with this one, I just wanted to share what I think is a really neat crystal. This was dug out of a piece of breccia, to the naked eye it looks like it's something tha ...
  Topic: Is this still quartz?
Ken

Replies: 10
Views: 3345

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 15, 2020 01:52   Subject: Re: Is this still quartz?
Interesting. Have we suggested that you find a local rockshop/rock club/college geology department that you can take your unknowns to and ask around? I think that would be the best way for you to ma ...
  Topic: What mineral is this?????
Ken

Replies: 9
Views: 2732

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 15, 2020 01:43   Subject: Re: What mineral is this?????
I thought for sure this was some sort of paint, but you can't scrape it off, can't burn it off, and it has no reaction to acid. You have to pry it or chisel it off and when you do, some of the quartz ...
  Topic: What mineral is this?????
Ken

Replies: 9
Views: 2732

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 13, 2020 23:47   Subject: What mineral is this?????
I've been told that this is for sure some sort of mineral but no one can say for sure what mineral it is. I showed this to several people and like me most were clueless, I came across a geochemist at ...
  Topic: Is this still quartz?
Ken

Replies: 10
Views: 3345

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 13, 2020 23:30   Subject: Re: Is this still quartz?
Hi Matt- I guess you might say that my curiosity got the best of me. I stumbled onto some minerals that were being washed out of a mountain that were setting off my metal detector, a lot of these mine ...
  Topic: Is this still quartz?
Ken

Replies: 10
Views: 3345

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 11, 2020 22:40   Subject: Re: Is this still quartz?
How are you doing or getting these scans done?
All of the scans were paid for and done at commercial labs or universities.
Pete Richards- The metamorphism doesn't apply to this stone, there were onl ...
  Topic: Is this still quartz?
Ken

Replies: 10
Views: 3345

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 11, 2020 01:37   Subject: Re: Is this still quartz?
This appears to be a quartz-mica schist; the presence of the mica (all the sparkling flakes, of course) would account for the other elements (K, Ca, Mg, Fe, Al) that show up in the X-ray spectrum.

...
  Topic: Is this still quartz?
Ken

Replies: 10
Views: 3345

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 10, 2020 16:10   Subject: Is this still quartz?
A lot of the minerals from where this was found appear to have been in an environment that has altered/modified them. Came across a lot of what looks like quartz but the composition seem a bit more co ...
  Topic: Ilmenite, magnetite or something else???
Ken

Replies: 6
Views: 2373

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 09, 2020 22:28   Subject: Re: Ilmenite, magnetite or something else???
Have you rejected the possibility that this is of extraterrestrial origin? The rounding of edges suggests to me that this might be a stony aerolite which fell eons ago then was revealed as alluvium f ...
  Topic: Ilmenite, magnetite or something else???
Ken

Replies: 6
Views: 2373

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 08, 2020 22:58   Subject: Re: Ilmenite, magnetite or something else???
The hardness test set I used is the Deluxe test set by Minerallab. The magnet is just a typical magnet you buy at a auto parts stone, nothing special. This rock is littered with small crystals that ...
  Topic: Ilmenite, magnetite or something else???
Ken

Replies: 6
Views: 2373

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 08, 2020 18:18   Subject: Ilmenite, magnetite or something else???
This rock was found using a metal detector. I was curious as to why it was so magnetic so I broke it apart. I took one small piece and ground away the rock with a diamond rotary bit and was left with ...
  Topic: A bizarre piece of quartz???
Ken

Replies: 1
Views: 1453

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jun 18, 2020 22:56   Subject: A bizarre piece of quartz???
I'm not sure but I think it's safe to call this thing quartz. Whatever it is, I'm sure it has one heck of a story to tell. From the research I've done on these minerals, it would appear that they are ...
  Topic: Altered/modified minerals
Ken

Replies: 2
Views: 2109

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jun 18, 2020 22:39   Subject: Re: Altered/modified minerals
To be classified as a new mineral species it needs to have a different chemical composition and/or a different crystal structure than any previously known mineral species; just having a different appe ...
  Topic: Altered/modified minerals
Ken

Replies: 2
Views: 2109

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 04, 2020 00:16   Subject: Altered/modified minerals
I've come across an area where several minerals have been in an environment that has caused many of them to become altered/modified. Here's a very odd looking piece of quartz, it looks as if that colo ...
 
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