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27 Apr-11:25:36 Re: collection of volkmar stingl (Volkmar Stingl)
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26 Apr-10:41:00 Re: collection of joseph d'oliveira (Joseph Doliveira)
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26 Apr-10:10:30 Re: collection of antonio nazario (Antonio Nazario)
26 Apr-09:24:46 Re: collection of antonio nazario (Jordi Fabre)
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26 Apr-03:35:03 Re: collection of antonio nazario (James Catmur)
26 Apr-03:19:37 Re: collection of tobi (Tobi)
26 Apr-02:52:29 Re: collection of antonio nazario (Tobi)
26 Apr-02:36:06 Re: collection of joseph d'oliveira (Jordi Fabre)
26 Apr-01:07:58 The mizunaka collection - rhodochrosite (Am Mizunaka)
25 Apr-22:13:47 Re: collection of antonio nazario (Antonio Nazario)
25 Apr-22:02:52 Re: collection of antonio nazario (Antonio Nazario)
25 Apr-21:44:30 Collection of antonio nazario (Antonio Nazario)
25 Apr-19:17:26 Re: collection of joseph d'oliveira (Joseph Doliveira)
24 Apr-05:09:17 Re: need help with identification of minerals in an old video (James Catmur)
24 Apr-04:24:30 Re: collection of tobi (Carles Millan)
23 Apr-17:44:56 Re: in memoriam - george robinson, a man of science, passed away (Peter Megaw)
23 Apr-09:12:26 Re: collection of michael shaw (Michael Shaw)
23 Apr-08:42:40 Need help with identification of minerals in an old video (Hababkhan)
23 Apr-08:12:31 Re: collection of michael shaw (Tobi)
23 Apr-07:31:29 Re: collection of michael shaw (Michael Shaw)
23 Apr-03:24:05 The mizunaka collection - quartz (Am Mizunaka)
22 Apr-07:43:53 Re: the mim museum in beirut, lebanon (Mim Museum)

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  Topic: Synthetic smoky quartz?
Fraxinus

Replies: 11
Views: 6731

PostForum: Minerals and Mineralogy   Posted: Apr 12, 2021 05:01   Subject: Re: Synthetic smoky quartz?
Because there are vast amounts of synthetic quartz used by electronics/telecom industry, nothing apparently prohibits using some outdated facilities equipment to grow such things. It is unclear, howev ...
  Topic: Synthetic smoky quartz?
Fraxinus

Replies: 11
Views: 6731

PostForum: Minerals and Mineralogy   Posted: Apr 12, 2021 04:42   Subject: Re: Synthetic smoky quartz?
They are not glued, as there are absolutely no gaps between the small crystals at the base and the large ones. Additionally, some of these smaller guys form "bridges", emerging from the face ...
  Topic: Synthetic smoky quartz?
Fraxinus

Replies: 11
Views: 6731

PostForum: Minerals and Mineralogy   Posted: Apr 11, 2021 17:43   Subject: Re: Synthetic smoky quartz?
I previously found one, quite similar in appearance, but smaller (link was rejected by automatic spam filter, sorry).

All of these specimens share the same traits: It's a cluster of larger crystals ...
  Topic: Synthetic smoky quartz?
Fraxinus

Replies: 11
Views: 6731

PostForum: Minerals and Mineralogy   Posted: Apr 11, 2021 15:02   Subject: Re: Synthetic smoky quartz?
Do you think these angled surface features result from natural etching process? Other natural quartz crystals I’ve seen all have straight “terraces” perpendicular to the edge (exactly like these shown ...
  Topic: Synthetic smoky quartz?
Fraxinus

Replies: 11
Views: 6731

PostForum: Minerals and Mineralogy   Posted: Apr 11, 2021 13:53   Subject: Synthetic smoky quartz?
Hello, Friends of Minerals!

Please confirm if I correctly identify the specimen of smoky quartz as synthetic. I never heard before that such things are produced, but after looking up this forum (pa ...
 
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