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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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 Posted: Jan 08, 2022 05:09 Post subject: Re: The Mizunaka Collection |
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| Fantastic preferential zoning! ;-)
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 08, 2022 18:47 Post subject: Re: The Mizunaka Collection |
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| Sante Celiberti wrote: | | Fantastic preferential zoning! ;-) |
Thanks Sante!
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 09, 2022 18:58 Post subject: The Mizunaka Collection - Quartz Scepter |
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| Mineral: | Quartz, Calcite, Dolomite |
| Locality: | | Treasure Mountain Diamond Mine, Little Falls, Herkimer County, New York, USA |  |
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| Dimensions: | 5.2 x 3.6 cm |
| Description: |
| Black stem quartz scepter on matrix with etched calcite and dolomite. |
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| Viewed: |
11174 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 11, 2022 17:16 Post subject: The Mizunaka Collection - Fluorite |
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| Mineral: | Fluorite, Quartz |
| Locality: | | Chenzhou Prefecture, Hunan Province, China | |
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| Dimensions: | 3.7 x 1.2 cm |
| Description: |
| Fluorite on a matrix covered by tiny included quartz crystals. There is an "invisible" fluorite immediately to the right of the large crystal. |
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11086 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1477
Location: Cambridge
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| Posted: Jan 12, 2022 13:05 Post subject: Re: The Mizunaka Collection - Fluorite |
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It really is almost invisible | am mizunaka wrote: | | invisible crystal to the right |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 12, 2022 16:51 Post subject: Re: The Mizunaka Collection - Fluorite |
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| James Catmur wrote: | It really is almost invisible | am mizunaka wrote: | | invisible crystal to the right |
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There is also another one to the left of the small "invisible" crystal. It is a shorter but wider crystal.
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 13, 2022 02:31 Post subject: The Mizunaka Collection - Quartz |
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| Mineral: | Quartz, Dolomite, Chalcopyrite |
| Locality: | | Aughamore Quarry, Aughamore, County Sligo, Connacht, Ireland | |
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| Dimensions: | 13.2 x 9.5 cm |
| Description: |
| Label indicates that is quartz after coral pseudomorph. Very unusual. |
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| Viewed: |
10957 Time(s) |
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| Mineral: | Quartz, Dolomite, Chalcopyrite |
| Locality: | | Aughamore Quarry, Aughamore, County Sligo, Connacht, Ireland | |
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| Description: |
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10939 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1477
Location: Cambridge
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| Posted: Jan 13, 2022 04:55 Post subject: Re: The Mizunaka Collection - Quartz |
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Could be an epimorph I guess? - I have one from Castleton, Derbyshire which is a fluorite epimorph of a coral fossil
People do seem to mix the two terms (epi and pseudo) up
| am mizunaka wrote: | | Label indicates that is quartz after coral pseudomorph. Very unusual |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 13, 2022 15:31 Post subject: Re: The Mizunaka Collection - Quartz |
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| James Catmur wrote: | Could be an epimorph I guess? - I have one from Castleton, Derbyshire which is a fluorite epimorph of a coral fossil
People do seem to mix the two terms (epi and pseudo) up
| am mizunaka wrote: | | Label indicates that is quartz after coral pseudomorph. Very unusual |
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This is true. Mindat has a lengthy thread discussing this issue.
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 15, 2022 22:19 Post subject: The Mizunaka Collection - Thin Quartz |
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| Mineral: | Quartz, Calcite, Muscovite |
| Locality: | | Rist Mine, Hiddenite, Alexander County, North Carolina, USA | |
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| Dimensions: | 7.5 x 4.3 cm |
| Description: |
| Flat quartz crystal 2.8 mm thick with calcite and muscovite. |
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| Viewed: |
10737 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 17, 2022 22:42 Post subject: The Mizunaka Collection - Quartz |
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| Mineral: | Quartz (variety amethyst), Quartz |
| Locality: | | South Lake Tahoe, El Dorado County, California, USA | |
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| Dimensions: | 7.8 x 4.9 cm |
| Description: |
| Double terminated crystal split between amethyst and quartz. |
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| Viewed: |
10566 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 18, 2022 18:36 Post subject: The Mizunaka Collection - Smoky Quartz |
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| Mineral: | Quartz (variety smoky quartz) |
| Locality: | | Galenstock Mountain, Tiefenbach, Urseren, Uri, Switzerland | |
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| Dimensions: | 9.9 x 7.4 cm |
| Description: |
| Not apparent in the photo but the large middle crystal at the top is a gwindel with a very slight twist. |
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| Viewed: |
10495 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 20, 2022 23:10 Post subject: The Mizunaka Collection - Quartz with Calcite |
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| Mineral: | Quartz (variety smoky quartz), Calcite |
| Locality: | | Lowville, Lewis County, New York, USA | |
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| Dimensions: | 4.4 x 5.2 cm |
| Description: |
| Smoky quartz sprinkled with calcite crystals. |
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| Viewed: |
10352 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 23, 2022 02:49 Post subject: The Mizunaka Collection - Amethyst |
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| Mineral: | Quartz (variety amethyst), Fluorite |
| Locality: | | Highway #17 roadcut, Rossport, Thunder Bay District, Ontario, Canada | |
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| Dimensions: | 10.5 x 5.4 cm |
| Description: |
| Amethyst on fluorite. Some of the amethyst have smoky hues. |
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| Viewed: |
10298 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2210
Location: USA
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| Posted: Jan 25, 2022 03:49 Post subject: The Mizunaka Collection - Quartz with Fluorite |
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| Mineral: | Quartz, Fluorite |
| Locality: | | Amborompotsy, Ambatofinandrahana District, Amoron'i Mania Region, Madagascar | |
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| Dimensions: | 11.1 x 3.2 cm |
| Description: |
| Quartz included with fluorite. Some voids are present in the quartz where there was once fluorite. |
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| Viewed: |
10198 Time(s) |
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