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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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 Posted: Nov 20, 2017 08:36 Post subject: Re: Micro photos of inclusions in Quartz |
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Strange hemispheres in quartz.(probably some kind of hematite)
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Pete Richards
Site Admin
Joined: 29 Dec 2008
Posts: 828
Location: Northeast Ohio
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| Posted: Nov 20, 2017 12:35 Post subject: Re: Micro photos of inclusions in Quartz |
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Yes, I would think the hemispheres are hematite as are the larger crystals.
An experiment you might try: put a polarizing filter between your specimen and the camera or microscope. I bet you could get rid of the double images in your photomicrographs.
_________________
Collecting and studying crystals with interesting habits, twinning, and epitaxy |
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Nov 21, 2017 02:19 Post subject: Re: Micro photos of inclusions in Quartz |
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| Pete Richards wrote: | Yes, I would think the hemispheres are hematite as are the larger crystals.
An experiment you might try: put a polarizing filter between your specimen and the camera or microscope. I bet you could get rid of the double images in your photomicrographs. |
Yes, it works!
Thank you very much.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Nov 21, 2017 12:27 Post subject: Re: Micro photos of inclusions in Quartz |
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Dendritic inclusions(possibly pyrolusite).
Yellow dumortierite inclusions(probably colored by iron oxide).
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Nov 23, 2017 03:49 Post subject: Re: Micro photos of inclusions in Quartz |
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More hematite inclusions.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Nov 23, 2017 03:51 Post subject: Re: Micro photos of inclusions in Quartz |
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Red needles in quartz.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Nov 23, 2017 03:53 Post subject: Re: Micro photos of inclusions in Quartz |
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Unknown inclusion.(possibly Talc)
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Nov 25, 2017 12:54 Post subject: Re: Micro photos of inclusions in Quartz |
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Unknown inclusions.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 06, 2017 05:51 Post subject: Re: Micro photos of inclusions in Quartz |
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Calcite inclusions in Quartz
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 08, 2017 04:10 Post subject: Re: Micro photos of inclusions in Quartz |
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Garnet inclusions.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 10, 2017 21:45 Post subject: Re: Micro photos of inclusions in Quartz |
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Radioactive inclusions in quartz, most likely to be uraninite. Tension fractures and dark halos are caused by radiation damage.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 11, 2017 07:03 Post subject: Re: Micro photos of inclusions in Quartz |
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Another specimen with uraninite inclusions.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 13, 2017 01:23 Post subject: Re: Micro photos of inclusions in Quartz |
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Pyrite cubes in quartz.
Pyrite inclusions in quartz are usually small and shapeless, a specimen like this one is actually quite rare.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 18, 2017 09:26 Post subject: Re: Micro photos of inclusions in Quartz |
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New specimen with uraninite inclusion.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 24, 2017 04:37 Post subject: Re: Micro photos of inclusions in Quartz |
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Yellow fluid inclusions.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 29, 2017 02:17 Post subject: Re: Micro photos of inclusions in Quartz |
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Unknown inclusions.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Dec 29, 2017 02:25 Post subject: Re: Micro photos of inclusions in Quartz |
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Hematite flake in quartz.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Jan 01, 2018 00:50 Post subject: Re: Micro photos of inclusions in Quartz |
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Cookeite (or talc) inclusions in quartz.
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Jan 02, 2018 02:25 Post subject: Re: Micro photos of inclusions in Quartz |
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Unknown inclusions(possibly numerous tiny chambers with gas or liquid inside)
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zbhjzm
Joined: 18 Dec 2016
Posts: 163
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| Posted: Jan 03, 2018 06:56 Post subject: Re: Micro photos of inclusions in Quartz |
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Pyrite inclusions.
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