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22 May-23:56:12 Re: provide miller indices in practice please (Roger Warin)
22 May-21:22:16 Re: collection of volkmar stingl (Volkmar Stingl)
22 May-14:54:58 Re: don lum collection (Don Lum)
22 May-11:58:28 Re: the mim museum in beirut, lebanon (Firmo Espinar)
22 May-10:21:09 Re: provide miller indices in practice please (Bob Carnein)
22 May-09:33:28 Re: the mim museum in beirut, lebanon (Mim Museum)
22 May-07:59:45 Re: provide miller indices in practice please (Bob Morgan)
22 May-04:17:03 Re: provide miller indices in practice please (James Catmur)
22 May-02:23:18 The mizunaka collection - ludlamite (Am Mizunaka)
21 May-17:26:32 Re: provide miller indices in practice please (Josele)
21 May-16:01:12 Provide miller indices in practice please (Robson Vieira)
21 May-12:49:16 Re: collection of michael shaw (Michael Shaw)
20 May-22:03:46 Re: collection of volkmar stingl (Volkmar Stingl)
20 May-20:45:03 Re: don lum collection (Don Lum)
20 May-19:11:50 The mizunaka collection - stalactite (Am Mizunaka)
20 May-15:43:58 Re: mineral identification tips (Robson Vieira)
20 May-15:37:59 Re: mineral identification tips (Robson Vieira)
20 May-15:32:02 Re: mineral identification tips (Robson Vieira)
20 May-15:24:04 Re: mineral identification tips (Robson Vieira)
19 May-14:28:05 Re: european mineral and mining museums (Robert Seitz)
19 May-13:04:59 Re: collection of volkmar stingl (Volkmar Stingl)
19 May-12:31:54 Re: don lum collection (Don Lum)
19 May-08:49:12 Re: collection of michael shaw (Michael Shaw)
19 May-08:08:17 Re: collection of joseph d'oliveira (Joseph Doliveira)
19 May-02:34:57 The mizunaka collection - quartz (Am Mizunaka)

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  Topic: In what direction do I cut my Agate?
GabiG

Replies: 9
Views: 14559

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Mar 05, 2020 04:22   Subject: Re: In what direction do I cut my Agate?
Thank you again! :-)
  Topic: In what direction do I cut my Agate?
GabiG

Replies: 9
Views: 14559

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Mar 04, 2020 12:42   Subject: Re: In what direction do I cut my Agate?
Does that mean cutting at a different angle if first cut points me to that direction? :-)
  Topic: In what direction do I cut my Agate?
GabiG

Replies: 9
Views: 14559

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Mar 04, 2020 04:43   Subject: Re: In what direction do I cut my Agate?
Thank You :-) Yes, I thought it might be chert as well, but I was told it was Agate. The very dark stone visible on the broken face with the moss feature reminds me of flint. Anyway, it will be int ...
  Topic: In what direction do I cut my Agate?
GabiG

Replies: 9
Views: 14559

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Mar 03, 2020 11:46   Subject: Re: In what direction do I cut my Agate?
Thank you :-) I suppose that would mean cutting it along my "green line 2" . The moss-like feature has the larger surface area. The stone is an odd sort of shape and is really colorful wit ...
  Topic: In what direction do I cut my Agate?
GabiG

Replies: 9
Views: 14559

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Mar 03, 2020 10:36   Subject: In what direction do I cut my Agate?
Hello :-) I found what I think is an Agate and I would like to cut it open or slice it to see what's inside, but I don't know how to identify the direction of the banding. I found this rock on a bea ...
  Topic: Interesting cube shaped mineral surrounded by quartz or calcite inside a rock
GabiG

Replies: 6
Views: 8494

PostForum: What is it? - Where is it from?   Posted: Dec 31, 2019 05:16   Subject: Re: Interesting cube shaped mineral surrounded by quartz or calcite inside a rock
That is brilliant! Thank you so very much!! :-) It really puzzled me because from the few rocks I have been able to collect here, the calcite crystals I've seen have always had this triangular or py ...
  Topic: Interesting cube shaped mineral surrounded by quartz or calcite inside a rock
GabiG

Replies: 6
Views: 8494

PostForum: What is it? - Where is it from?   Posted: Dec 30, 2019 15:05   Subject: Re: Interesting cube shaped mineral surrounded by quartz or calcite inside a rock
Thank you so much again for all your information! Really appreciated :-) Yes, I need to look out for more but I don't hold out much hope. The island here is quite small and there are only limited p ...
  Topic: Interesting cube shaped mineral surrounded by quartz or calcite inside a rock
GabiG

Replies: 6
Views: 8494

PostForum: What is it? - Where is it from?   Posted: Dec 30, 2019 14:21   Subject: Re: Interesting cube shaped mineral surrounded by quartz or calcite inside a rock
OK :-) That's interesting. I didn't know calcite can grow in cubes like this. I thought it's similar to quartz (sort of pointy angular). That's why I always get confused about distinguishing small ...
  Topic: Interesting cube shaped mineral surrounded by quartz or calcite inside a rock
GabiG

Replies: 6
Views: 8494

PostForum: What is it? - Where is it from?   Posted: Dec 30, 2019 11:57   Subject: Interesting cube shaped mineral surrounded by quartz or calcite inside a rock
Hi all :-) Could you please help me identify this cube shaped mineral? I found this rock with a few small cavities. They are filled with either quartz or calcite. Not sure which exactly :-/ Insid ...
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 25, 2019 09:13   Subject: Re: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
I have now tried the scratch test against a stainless steel knife. Some isolated mineral crumbs from the rock sample did not scratch the knife surface when I rubbed them against the knife surface. I ...
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 24, 2019 05:01   Subject: Re: Specs of white shiny magnetic metal - are they iron, nickel or chalcopyrite?
Thank you again! :-) You give me so much information. I'm very grateful! I am going to crush one of the smaller rocks and try separate all the metal elements as best I can. Then I will try what y ...
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 23, 2019 13:25   Subject: Re: Specs of white shiny magnetic metal - are they iron, nickel or chalcopyrite?
Well, taking all the information into consideration, I think it must either be pyrrhotite or galena :-) I will try and collect sufficient of the material to do a streak test. But I wonder if they wo ...
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 23, 2019 08:45   Subject: Re: Specs of white shiny magnetic metal - are they iron, nickel or chalcopyrite?
I tried scratching some of the specks with a needle. Difficult because they are so small. They seem hard and a tiny fragment of quartz came off with a metal speck left on it. It literally flew towa ...
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 23, 2019 07:58   Subject: Re: Specs of white shiny magnetic metal - are they iron, nickel or chalcopyrite?
I tried the magnet test, and you are right. The Ferrite magnet doesn't have any effect on the small rock. The Neodymium of course pulls it straight away. I can't test the other rocks because they a ...
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 23, 2019 06:18   Subject: Re: Specs of white shiny magnetic metal - are they iron, nickel or chalcopyrite?
Oh! :-D That sounds confusing! Not sure how to tell the difference with the small sample size I have :-/ But I'll continue to investigate to still my curiosity :-D Thank you :-)
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 22, 2019 11:21   Subject: Re: Specs of white shiny magnetic metal - are they iron, nickel or chalcopyrite?
I'll have a go at what you suggest. Will try later as going to work now! :-( I will also try breaking one of the rocks further to see if any other metal is present. Thanks very much!!
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 22, 2019 11:09   Subject: Re: Specs of white shiny magnetic metal - are they iron, nickel or chalcopyrite?
Isle of Man near the Snaefell/Laxey Mine
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 22, 2019 10:53   Subject: Re: Specs of white shiny magnetic metal - are they iron, nickel or chalcopyrite?
Yes, the locality on Mindat is Isle of Man - 72
  Topic: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
GabiG

Replies: 18
Views: 13894

PostForum: What is it? - Where is it from?   Posted: Dec 22, 2019 09:04   Subject: Specks of white shiny magnetic metal - are they iron, nickel, or chalcopyrite?
Hi all, Could you help me identify the metal in these rocks? The samples contain tiny specks of shiny white metal with a somewhat splattered look. The samples respond to a neodymium magnet, i.e. the m ...
 
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