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Newest topics and users posts
25 Oct-23:04:53 Re: please help identify the composition of this granite (Matt_zukowski)
25 Oct-22:00:38 Please help identify the composition of this granite (Tsaintonge)
25 Oct-20:10:22 Re: silvia's collection - schorl/dravite panasqueira (Am Mizunaka)
25 Oct-17:59:29 Re: silvia's collection - schorl/dravite panasqueira (Silvia)
25 Oct-14:41:01 Re: silvia's collection (Silvia)
25 Oct-14:06:03 Re: new generation for picture - ploum (Ploum)
25 Oct-11:00:02 Re: collection of michael shaw (Michael Shaw)
25 Oct-08:29:19 Re: don lum collection (Don Lum)
25 Oct-07:01:21 Re: new generation for picture - ploum (Ploum)
25 Oct-06:02:47 Re: new generation for picture - ploum (Ploum)
25 Oct-01:41:28 Re: collection of michael shaw (Tobi)
25 Oct-01:37:51 Re: collection of sante celiberti (Tobi)
25 Oct-01:34:43 Re: silvia's collection (Tobi)
25 Oct-01:32:18 Re: don lum collection (Tobi)
25 Oct-01:26:48 Re: collection of tobi (Tobi)
24 Oct-23:42:01 Re: collection of volkmar stingl (Volkmar Stingl)
24 Oct-21:41:08 Re: don lum collection (Don Lum)
24 Oct-21:40:15 Re: the mizunaka collection - quartz (Am Mizunaka)
24 Oct-20:05:46 Silvia's collection - huge siderite (Silvia)
24 Oct-19:57:24 Re: the mizunaka collection - quartz (Silvia)
24 Oct-18:44:45 The mizunaka collection - quartz (Am Mizunaka)
24 Oct-15:15:23 Re: collection of sante celiberti (Sante Celiberti)
24 Oct-14:52:30 Re: collection of michael shaw (Michael Shaw)
24 Oct-13:43:08 Re: collection of michael shaw (Silvia)
24 Oct-11:17:10 Re: collection of michael shaw (Michael Shaw)

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  Topic: Cybersecurity, current hi tech hacking, and being a registered user of this forum
B.

Replies: 1
Views: 567

PostForum: Off-Topic and Introductions   Posted: Jul 06, 2021 05:35   Subject: Cybersecurity, current hi tech hacking, and being a registered user of this forum
Because of all the recent cyberattacks, my family's security advisors have strongly suggested unregistering and logging out from multiple non-essential websites.

Being '"logged in" or sim ...
  Topic: Join us to dig a giant Amethyst geode
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Replies: 38
Views: 187257

PostForum: Exceptional finds   Posted: Jul 05, 2021 17:02   Subject: Re: Join us to dig a giant Amethyst geode
Thru out this old thread everyone called the extracted very large example a "geode". Of course it is not a true geode, as all the Brazilian examples from Rio Grande do Sul and those from Art ...
  Topic: Favourite Barytes?
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Replies: 31
Views: 26734

PostForum: Favourite Minerals   Posted: Jul 04, 2021 09:38   Subject: Re: Favourite Barytes?
Another interesting large cabinet size example.

These specimens are well received in my display cases at the regional shows. The example's sizes and coming from regional or local areas make the g ...
  Topic: What is it?
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Replies: 4
Views: 974

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jul 02, 2021 17:57   Subject: Re: What is it?
So what you have is either a true geode or geode like structure composed of the purple quartz variety known as amethyst.

While this forum does not give valuations, in general, yours looks to ...
  Topic: Favourite Barytes?
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Replies: 31
Views: 26734

PostForum: Favourite Minerals   Posted: Jun 30, 2021 15:01   Subject: Re: Favourite Barytes?
Another classic expression of an Indiana baryte on quartz from the Lake Monroe (Monroe Reservoir) area of Monroe County.
Well displayed, this 14.5 cm x 14.5 cm example shows a lustrous 3.3 cm term ...
  Topic: Favourite Barytes?
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Replies: 31
Views: 26734

PostForum: Favourite Minerals   Posted: Jun 27, 2021 12:32   Subject: Re: Favourite Barytes?
For those who collect smaller specimens or like examples of crystal groupings culled from larger specimens, is this radiating group of lustrous and transparent baryte crystals. Most of the crystals ...
  Topic: Favourite Barytes?
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Replies: 31
Views: 26734

PostForum: Favourite Minerals   Posted: Jun 23, 2021 15:13   Subject: Re: Favourite Barytes?
I believe I have mentioned in the past that Indiana baryte crystals always are found in geodes and originate in only the 2 counties of Monroe and Washington. If you are ever offered an Indiana baryte, ...
  Topic: Favourite Barytes?
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Replies: 31
Views: 26734

PostForum: Favourite Minerals   Posted: Jun 23, 2021 13:44   Subject: Re: Favourite Barytes?
Worthy of any baryte display case is this self-collected example from the Harrodsburg road cuts in Monroe County Indiana
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The 5 cm white tipped doubly terminated baryte crystal is part of a paralle ...
  Topic: What kind of mineral is it ?
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Replies: 4
Views: 819

PostForum: What is it? - Where is it from?   Posted: Jun 23, 2021 08:54   Subject: Re: What kind of mineral is it ?
This exact same specimen has been posted for identification on the MinDat website.

To you and all responders on this site, please see the responses there. Bob
  Topic: Favourite Barytes?
B.

Replies: 31
Views: 26734

PostForum: Favourite Minerals   Posted: Jun 20, 2021 15:18   Subject: Re: Favourite Barytes?
Thought I might share another of my very many Indiana barytes.

This 15 cm x 7 cm example collected 16 years ago in Monroe County has an oval 9 cm x 4.5 cm cavity.
Aesthetically placed about in th ...
  Topic: Virtual shows: what's the concept?
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Replies: 3
Views: 1443

PostForum: Mineral Shows   Posted: Jun 18, 2021 13:54   Subject: Re: Virtual shows: what's the concept?
We all know that during this worldwide pandemic most in person events were canceled.
Of course this included virtually all mineral/fossil shows from the big international events to the small local sh ...
  Topic: A mineralogical trip through the states of USA - Indiana
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Replies: 132
Views: 119445

PostForum: A mineralogical trip through the states of USA   Posted: Jun 16, 2021 08:56   Subject: Re: A mineralogical trip through the states of USA - Indiana
Nice quality or interesting very large Indiana geodes are surprising uncommon, most, for some reason, having a relatively small/dingy central cavity. This example shows a relatively small cavity, but ...
  Topic: Favourite Quartzes?
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Replies: 58
Views: 54331

PostForum: Favourite Minerals   Posted: Jun 16, 2021 08:26   Subject: Re: Favourite Quartzes?
I decided to revive this long dormant quartz thread.

Interesting combinations of druzy quartz, variety amethyst and hematite included amethyst are rather commonly found together in examples from th ...
  Topic: An under reported consequence of climate change sea level rise.
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Replies: 0
Views: 656

PostForum: Off-Topic and Introductions   Posted: Jun 09, 2021 20:09   Subject: An under reported consequence of climate change sea level rise.
As a consequence of climate change, since about 1980, or the last 40 years, sea levels have risen about 2 inches. With continued climate warming, it is estimated that by 2100, or within the next 80 ...
  Topic: Mineral spirituality?
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Replies: 29
Views: 15786

PostForum: Minerals and Mineralogy   Posted: Jun 08, 2021 22:42   Subject: Re: Mineral spirituality?
As a retired MD pathologist, your last sentence is not true.

One of the newest therapies for metastatic (widely spread) prostate cancer involves linking a molecule of radioactive isotope of an ele ...
  Topic: Strange green & brown geode
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Replies: 8
Views: 1640

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jun 07, 2021 00:08   Subject: Re: Strange green & brown geode
Volkmar, When you see a cat that looks like a cat, you don't have to waste your time doing genetic testing to make sure it is not a dog or bunny rabbit.

When you see quartz over malachite and it ...
  Topic: Strange green & brown geode
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Replies: 8
Views: 1640

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jun 06, 2021 14:17   Subject: Re: Strange Green & Brown Geode
It would help to know where it is from. It looks like druzy quartz atop malachite.

Wherever the malachite lined an open cavity, it allowed a thin layer of druzy quartz crystal tips to form.
  Topic: Stay at home - Coronavirus / Covid-19
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Replies: 364
Views: 129929

PostForum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF   Posted: May 27, 2021 10:09   Subject: I hope that this photo brings a smile
And, finally, I hope that this photo brings a smile to some faces during these hard times.

My grandson, 18 months old, is really into rocks.....these are his formative years!

My daughter and her ...
  Topic: I thought I might show how I keep these large examples
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Replies: 0
Views: 708

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: May 27, 2021 09:47   Subject: I thought I might show how I keep these large examples
Two additional examples. The first can be seen to include its surrounding limestone matrix.

The very freshest finds either include the matrix or are extracted from it. This example is an interesti ...
  Topic: A mineralogical trip through the states of USA - Indiana
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Replies: 132
Views: 119445

PostForum: A mineralogical trip through the states of USA   Posted: May 27, 2021 09:01   Subject: Re: A mineralogical trip through the states of USA - Indiana
In 2013, while field collecting at the Indiana rte 56 road cuts in Washington County, a fellow pulled off the road near my collecting. When this happens, I get a little anxious as to what the stranger ...
 
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