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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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cascaillou Replies: 12 Views: 2236 |
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The final version of the article (updated December 19, 2020) is now available:
https://www.academia.edu/40433628/An_Overview_of_Minerals_Toxicity |
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cascaillou Replies: 4 Views: 7415 |
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And here's another fun mindat article (by Jolyon Ralph):
Rocks and minerals of the video game Minecraft https://www.mindat.org/a/minecraft Minecraft is a sandbox construction game which involv ... |
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cascaillou Replies: 4 Views: 7415 |
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Creepy mineralogy:
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=56&t=25692 |
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cascaillou Replies: 345 Views: 83372 |
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Quarantine entertainment:
https://www.discogs.com/lists/Crystals-Minerals-Gems/576296 :-) (link normalized by FMF) |
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cascaillou Replies: 345 Views: 83372 |
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I've been diggin' up lots of music these last few weeks, and here's my latest rock selecta...music to quarantine by :-)
01) Neu! - Hallogallo (1972) https://www.youtube.com/watch?v=zndpi8tNZyQ ... |
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cascaillou Replies: 345 Views: 83372 |
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Day +18
Subject has mutated into a nocturnal creature. Sole known activity: digging for music. Status: happy with daily new finds. Sole known grief: running short on Caol-ila. |
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cascaillou Replies: 345 Views: 83372 |
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In France, it has been suggested that for the next two weeks people should either stay at home or go to work. Either we don't need a quarantine, or we need a real one, but a half-quarantine doesn't ma ... | |
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cascaillou Replies: 5 Views: 6288 |
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File down a piece of iron to get some very fine iron dust, and see if this dust is attracted by the tiny crystals and sticks to it. | |
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cascaillou Replies: 4 Views: 6748 |
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Emerald is a mineral (which certainly doesn't look anything like what you have). Fuchsite is another mineral (which usually has a more emerald-like green color than what I see on your picture. However ... | |
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cascaillou Replies: 4 Views: 9097 |
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In a mineralogical perspective, detailed locality of origin is essential data as it tells us about the geological context in which the mineral occurred.
But favoring a given locality over another ... |
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cascaillou Replies: 17 Views: 6430 |
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My answer was rather addressing Tracy's statement.
You don't need to worry about your smoky quartz. |
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cascaillou Replies: 17 Views: 6430 |
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"Irradiation" means receipt of energy from radioactive emissions/decay. The radioactivity is inherent to the material emitting the energy, it doesn't transfer to the irradiated object.
A ... |
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cascaillou Replies: 18 Views: 8907 |
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https://exceptionalminerals.com/DEN2007-202indiamix3.jpg
This thing was 18x10x10cm. I looked at the price and I told to myself "if you are prepared to be eating pastas without salt at every ... |
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cascaillou Replies: 7 Views: 12074 |
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To summarize, minerals toxicity is mostly an occupational concern (i.e. to workers of the mining and stone industry), while mineral collectors should be on the safe side as long as some simple safety ... | |
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cascaillou Replies: 21 Views: 7078 |
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It's indeed a polished piece of quartz. Possibly irradiated, or maybe not, that's impossible to tell.
Ps: concerning hardness, just keep in mind that two materials with the same hardness can scratc ... |
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cascaillou Replies: 21 Views: 7078 |
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Glass doesn't necessarily show any bubbles (or any inclusions at all), sometimes bubbles in glass may be organized in a veil-like pattern, but veils of fluid inclusions exclude glass.
Here's a pict ... |
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cascaillou Replies: 21 Views: 7078 |
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Bubbles would indeed indicate glass, but I do not see bubbles in the pictures, just what appears to be veils of fluid inclusions, which would be consistent with quartz. | |
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cascaillou Replies: 7 Views: 12074 |
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Here are a few quality specimens to illustrate the topic: | |
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cascaillou Replies: 7 Views: 12074 |
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Indeed, skin (dermal) absorption is also addressed in the article (if a mineral may show significant skin absorption, it is mentioned). | |
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cascaillou Replies: 7 Views: 12074 |
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If you prefer to see this article in PDF format, click on this
The same article in PDF format also in: https://www.academia.edu/40433628/An_Overview_of_Minerals_Toxicity Here you have the article ... |
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