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The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
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Bob Harman Replies: 7 Views: 6170 |
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Nice full cabinet size example!
The dominant crystals are big enough for my definition of Quartz, var rock crystal. The patchy yellowish areas, I still think are iron oxide stains. Welcome to ... |
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Bob Harman Replies: 7 Views: 6170 |
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It is unfortunate that you don't have a locality as Quartz like you show is sooooo common, it could be from many localities. It might help if you give the specimen measurements.
The example on ... |
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Bob Harman Replies: 95 Views: 113074 |
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I went back to the "Tucson 2020" thread and reviewed the postings, including mine, as I attended that show.
Bob K's postings of that show were great so I am sure his postings of the upcomi ... |
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Bob Harman Replies: 13 Views: 15468 |
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Hi Alfredo and thanks for your input.
My philosophy of focused collecting started when I was about 10 yo. when I started collecting stamps. Coincidentally, my dad's business partner was an advanc ... |
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Bob Harman Replies: 13 Views: 15468 |
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Jordi, This is an interesting thread with 2 important take-aways for me.
The first is that since these examples were originally for sale as natural mineral specimens and were subsequently analyzed ... |
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Bob Harman Replies: 139 Views: 221030 |
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Bob, Here is another of my pseudocubic Quartz specimens.
Aragonite or Kaolinite coats the Quartz crystal tips. In this rather small cavity, there also is Smoky Quartz crystal groupings, makin ... |
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Bob Harman Replies: 139 Views: 221030 |
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HI Bob and Happy New Year to you!
If your question is referring to the so called pseudocubic variant of the druzy quartz crystal tips discussed in a February 2018 article in Rock & Gem periodi ... |
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Bob Harman Replies: 139 Views: 221030 |
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As most field collectors know, iron oxides are so pervasive and common that many many collected mineral specimens have some degree of rusty iron staining. Trying to clean and improve the mineral speci ... | |
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Bob Harman Replies: 139 Views: 221030 |
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This posting will be some info on the Calcite found in the Berry Materials Quarry vs. the Calcite found in the Meshberger Stone Quarry.
Indiana has numerous Calcite locations, both contained within ... |
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Bob Harman Replies: 139 Views: 221030 |
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Hi All and a Happy New Year 2022 to everyone!
After a 6 month hiatus I am returning to the wonderful forum. During the past 6 months my personal computer and those many others associated with o ... |
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Bob Harman Replies: 2220 Views: 2455312 |
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WISHING EVERYONE A HAPPY AND HEALTHY 2022 !
Hi Don.... and Happy New Year to you as well! While I think your specimen of Calcite with Chalcopyrite is aesthetic and interesting, I have to serious ... |
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Bob Harman Replies: 1 Views: 3285 |
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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 ... |
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Bob Harman Replies: 41 Views: 252144 |
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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 ... | |
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Bob Harman Replies: 32 Views: 70207 |
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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 ... |
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Bob Harman Replies: 4 Views: 5031 |
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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 ... |
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