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FMF - Friends of Minerals Forum, discussion and message board
The place to share your mineralogical experiences


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Newest topics and users posts
24 Sep-09:25:28 Re: collection of firmo espinar (Firmo Espinar)
24 Sep-08:56:43 Re: will barite save the world? (Pete Richards)
24 Sep-08:53:13 Re: will barite save the world? (Matt_zukowski)
24 Sep-08:38:19 Re: will barite save the world? (Amir Akhavan)
24 Sep-08:30:04 Re: will barite save the world? (Amir Akhavan)
24 Sep-08:27:05 Re: will barite save the world? (Amir Akhavan)
24 Sep-08:25:32 Re: will barite save the world? (Lluis)
24 Sep-07:32:29 Re: quartz and epidote with possible hedenbergite from imilchil, morocco (Adam)
24 Sep-06:58:22 Re: quartz and epidote with possible hedenbergite from imilchil, morocco (Jordi Fabre)
23 Sep-20:42:49 Re: will barite save the world? (Bob Kerr)
23 Sep-19:04:43 Re: will barite save the world? (John Hodgson)
23 Sep-17:32:46 Re: quartz and epidote with possible hedenbergite from imilchil, morocco (Adam)
23 Sep-16:33:54 Re: will barite save the world? (Alfredo)
23 Sep-14:48:47 Re: will barite save the world? (Bob Kerr)
23 Sep-14:32:01 Re: will barite save the world? (Lluis)
23 Sep-12:13:13 Will barite save the world? (Bob Kerr)
23 Sep-12:04:31 Re: possibilty of adding/publishing a pdf file to the forum? (Tobi)
23 Sep-10:55:10 Re: possibilty of adding/publishing a pdf file to the forum? (Jordi Fabre)
23 Sep-10:44:49 Possibilty of adding/publishing a pdf file to the forum? (Tobi)
23 Sep-10:27:51 Re: a tri-state galena and calcite (Rgangue)
23 Sep-07:07:50 Re: a tri-state galena and calcite (Edelmin)
23 Sep-04:26:34 Re: collection of volkmar stingl (Volkmar Stingl)
22 Sep-19:37:22 Re: a tri-state galena and calcite (John Hodgson)
22 Sep-17:04:03 The mizunaka collection - fluorite (Am Mizunaka)
22 Sep-15:23:18 Re: collection of sante celiberti (Sante Celiberti)

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Author Message
  Topic: About FMF Homepage
SteveB

Replies: 6
Views: 719

PostForum: Off-Topic and Introductions   Posted: Sep 09, 2021 20:50   Subject: Re: About FMF Homepage
Sort of sounds like a good idea, however this forum gets a huge number of spammers and scammers it would only open a floodgate for more and worse of the same. Cyberscammers setting up personal stores. ...
  Topic: Tsumeb - Deposit of dioptase on calcite.
SteveB

Replies: 3
Views: 645

PostForum: Minerals and Mineralogy   Posted: Aug 04, 2021 18:39   Subject: Re: Tsumeb - Deposit of dioptase on calcite.
Sorry I misread the first post, I thought you understood the formation and didnt get the single side part either.

I‘ll spitball my ignorance.
First is this a specimen you own snd can examine?

A ...
  Topic: Advice needed on how to get started on a potential project.
SteveB

Replies: 6
Views: 683

PostForum: Off-Topic and Introductions   Posted: Aug 04, 2021 18:23   Subject: Re: advice needed on how to get started on a potential project.
A lapidary club in your area should be able to advise. Lapidary is about cutting and polishing stones. Or a Stone Mason.
  Topic: Tsumeb - Deposit of dioptase on calcite.
SteveB

Replies: 3
Views: 645

PostForum: Minerals and Mineralogy   Posted: Aug 03, 2021 11:36   Subject: Re: Tsumeb - Deposit of dioptase on calcite.
A rather attractive specimen. The contrast of the “framing” really makes you think about how it could be natural. It's just too perfect and far from the norm - I have to stop and marvel at the natural ...
  Topic: Help identify this rock. Sapphire??
SteveB

Replies: 5
Views: 670

PostForum: What is it? - Where is it from?   Posted: Jul 22, 2021 22:56   Subject: Re: Help identify this rock. Sapphire??
Quartz and Feldspar.

What is the blue part of the stone

Quartz, chalcedony, bad photography. Take your pick.
  Topic: Black, metallic, yellow oxide?
SteveB

Replies: 23
Views: 1916

PostForum: What is it? - Where is it from?   Posted: Jul 21, 2021 15:35   Subject: Re: black, metallic, yellow oxide?
Magnetite? Yellow oxide it often zinc related and here it may have nothing to do with the crystal itself but from the host matrix. Could be residue from “YellowTak” similar to “BluTak” that rubbery gu ...
  Topic: What is it? Oregon Beach Find.
SteveB

Replies: 3
Views: 689

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jul 15, 2021 04:20   Subject: Re: What is it? Oregon Beach Find.
Looks like waste slag probably from a beach party, could be the burnt remains of sand encrusted beer and pizza. Absolutely nothing natural, NOT a meteorite, NOT from a volcano.Burnt garbage.
  Topic: Linarite or azurite
SteveB

Replies: 5
Views: 1138

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Jul 10, 2021 00:20   Subject: Re: Linarite or azurite
Positive ID of a bunch of words? Yes you typed stuff. You haven’t shown anything. Or provided mined location, hardness etc test results. Generally you can’t substitute dfferent acids. Its a chemical r ...
  Topic: What is this rock formation?
SteveB

Replies: 5
Views: 851

PostForum: What is it? - Where is it from?   Posted: Jul 04, 2021 22:19   Subject: Re: What is this rock formation?
Looks like a limestone nodule. Should acid test the round rock as well as the surrounding matrix. Use a drop of hydrochloric acid or white vinegar and note any bubbles forming and how aggressively.. I ...
  Topic: What is it?
SteveB

Replies: 4
Views: 834

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jul 03, 2021 22:50   Subject: Re: What is it?
Except the first photo seems as if its been painted dark green on the outer left with clean on the right and a masking line down the side. I do agree its natural though (ie nature created it) so its m ...
  Topic: Help identifying
SteveB

Replies: 4
Views: 744

PostForum: What is it? - Where is it from?   Posted: Jul 02, 2021 20:05   Subject: Re: Help identifying
Photos are poor ways of identifying most mineral and you’re are totally useless to even known what you are asking about. Could be pyrite, could be bits of solder, could be flecks of mica. the photos a ...
  Topic: Help with historical stone mystery - slag, or something else?
SteveB

Replies: 11
Views: 1256

PostForum: What is it? - Where is it from?   Posted: Jun 25, 2021 11:10   Subject: Re: Help with historical stone mystery - slag, or something else?
Chemical analysis in 1860 differs from chemical analysis in 2020s. So it may have seemed identical enough at the time with the tools and techniques they used. But today “identical” could be easily co ...
  Topic: What rock matt black color high density medium hard ?
SteveB

Replies: 11
Views: 1233

PostForum: What is it? - Where is it from?   Posted: Jun 24, 2021 04:49   Subject: Re: What rock matt black color high density medium hard ?
[quote="User4242333"]Why do I need to post other measurements ?

As I mentioned (obviously NOT clearly enough) Every rock ( which are composites of Minerals) as well as pure minerals have ...
  Topic: What rock matt black color high density medium hard ?
SteveB

Replies: 11
Views: 1233

PostForum: What is it? - Where is it from?   Posted: Jun 23, 2021 10:27   Subject: Re: What rock matt black color high density medium hard ?
Unfortunately, the first step in identifying a smooth pebble or cobble is to break it. This gives you an idea of the texture, which can't readily be seen on the outside. Then, to identify most rocks ...
  Topic: Rust remover UK
SteveB

Replies: 3
Views: 948

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Jun 07, 2021 10:35   Subject: Re: Rust remover UK
In Australia we have CLR (Calcium Lime Rust), available in supermarkets and hardware stores everywhere household cleaners are sold. Its marketed at removing water caused stains like rings in bath tubs ...
  Topic: Airtight display boxes ?
SteveB

Replies: 14
Views: 2192

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: May 24, 2021 19:51   Subject: Re: Airtight display boxes ?
I doubt they exist, you are after hermetically sealable. Not exactly easy to create for a display box you expect to open/close ever. You probably want something to be able to purge the air in the cont ...
  Topic: Collecting in UK
SteveB

Replies: 5
Views: 1296

PostForum: Rockhounding trips   Posted: May 20, 2021 00:44   Subject: Re: Collecting in UK
Near UK? There’s europe. Samples of what? Pretty useless question really. Go outside and look at the ground, find forrested areas, national parks, but i get the feeling you want to keep stuff for free ...
  Topic: What is this?
SteveB

Replies: 2
Views: 882

PostForum: What is it? - Where is it from?   Posted: May 18, 2021 00:02   Subject: Re: What is this?
First follow Bob’s advice.
Second provide a precise location where you found it. Thats vital, it could be a geode which often includes crsyatl and agate banding.but location is everything. Not a phot ...
  Topic: Is this still quartz??
SteveB

Replies: 7
Views: 1573

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 14, 2021 19:36   Subject: Re: Is this still quartz??
The clear white veins are form(s) of quartz, some parts are tending towards agate . Chalcedony is my guess there, possibly quartzite.The brown though no idea. Its a water rounded riverstone basically. ...
  Topic: A new mineral: alpha-calcium formate
SteveB

Replies: 9
Views: 2119

PostForum: Minerals and Mineralogy   Posted: May 02, 2021 02:09   Subject: Re: A new mineral: alpha-calcium formate
I am unsure and uncomfortable about it being called a Mineral. It may be a grey area. Its could be called a chemical compound, but so could what we call minerals, It could be called a Formate or a Sal ...
 
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