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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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 Posted: Jul 19, 2022 21:14 Post subject: Re: The Mizunaka Collection - Quartz replacing Elbaite |
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| Tobi wrote: | | I know it's common in that mine that the core of the elbaites is replaced by quartz, but I think crystals with such well-crystallized quartzes are rather rare. Quite unique piece! |
Thanks Tobi! The quartz "hat" was definitely a feature that attracted me to this specimen.
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Jul 20, 2022 01:48 Post subject: The Mizunaka Collection - Quartz with Byssolite |
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| Mineral: | Quartz, Actinolite (variety byssolite) |
| Locality: | | Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley (Val d'Aosta), Italy |  |
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| Dimensions: | 6.2 x 5.0 cm |
| Description: |
| Glassy quartz included with byssolite. |
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| Viewed: |
12070 Time(s) |
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Philippe Durand
Joined: 10 May 2016
Posts: 653
Location: Normandie
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Jul 24, 2022 18:07 Post subject: The Mizunaka Collection - Skeletal Quartz |
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| Mineral: | Quartz, Hematite |
| Locality: | | Mount Isa, City of Mount Isa, Queensland, Australia | |
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| Dimensions: | 12.3 x 11.2 cm |
| Description: |
| Quartz with skeletal features and inclusions of hematite. |
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| Viewed: |
11867 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Jul 27, 2022 21:06 Post subject: The Mizunaka Collection - Amethyst |
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| Mineral: | Quartz (variety amethyst) |
| Locality: | | The Great Australian Amethyst Mine, Wyloo Station, Ashburton Shire, Western Australia, Australia | |
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| Dimensions: | 8.9 x 5.9 cm |
| Description: |
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| Viewed: |
11765 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Jul 29, 2022 00:52 Post subject: The Mizunaka Collection - Rhodochrosite |
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| Mineral: | Rhodochrosite |
| Locality: | | Nelson Bay River Mine, Temma, Balfour-Temma District, Circular Head Council, Tasmania, Australia | |
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| Dimensions: | 3.9 x 3.4 cm |
| Description: |
| Front of specimen with scattered rhodochrosite crystals embedded in matrix. |
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| Viewed: |
11677 Time(s) |
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| Mineral: | Rhodochrosite |
| Locality: | | Nelson Bay River Mine, Temma, Balfour-Temma District, Circular Head Council, Tasmania, Australia | |
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| Description: |
| Detail of two of the crystals on the front of the piece. |
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| Viewed: |
11668 Time(s) |
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| Mineral: | Rhodochrosite |
| Locality: | | Nelson Bay River Mine, Temma, Balfour-Temma District, Circular Head Council, Tasmania, Australia | |
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| Dimensions: | 3.9 x 3.4 cm |
| Description: |
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| Viewed: |
11679 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Jul 30, 2022 19:12 Post subject: The Mizunaka Collection - Smoky Quartz |
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| Mineral: | Quartz (variety smoky quartz) |
| Locality: | | Mount Gee, Arkaroola Wilderness Sanctuary, Northern Flinders Ranges, Flinders Ranges, South Australia, Australia | |
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| Dimensions: | 11.1 x 5.7 cm |
| Description: |
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| Viewed: |
11580 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Jul 31, 2022 18:16 Post subject: The Mizunaka Collection - Agate |
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| Mineral: | Quartz (variety agate) |
| Locality: | | Agate Creek, Etheridge Shire, Queensland, Australia | |
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| Dimensions: | 7.3 x 4.5 x 3.8 cm |
| Description: |
| An unusual combination of amethyst with greenish/yellow quartz. |
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| Viewed: |
11531 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Aug 02, 2022 02:53 Post subject: The Mizunaka Collection - Fluorite |
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| Mineral: | Fluorite |
| Locality: | | Lupita Mine, Descubridora mining district, Buruguilla, Municipio Mapimí, Durango, Mexico | |
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| Dimensions: | 13.0 x 9.1 cm |
| Description: |
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| Viewed: |
11459 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Aug 04, 2022 03:06 Post subject: The Mizunaka Collection- Rutile |
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| Mineral: | Rutile, Muscovite |
| Locality: | | Rist Mine, Hiddenite, Alexander County, North Carolina, USA | |
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| Dimensions: | 3.1 x 2.1 cm |
| Description: |
| Gemmy rutile crystal on muscovite. |
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| Viewed: |
11344 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Aug 05, 2022 00:31 Post subject: The Mizunaka Collection - Quartz with Hematite |
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| Mineral: | Quartz, Hematite |
| Locality: | | Madagascar | |
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| Dimensions: | 5.0 x 4.2 cm |
| Description: |
| Hematite coating and included in quartz. Unfortunately the vendor did not have specific locality information for the piece. |
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| Viewed: |
11204 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Aug 07, 2022 15:53 Post subject: The Mizunaka Collection - Quartz |
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| Mineral: | Quartz |
| Locality: | | Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia | |
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| Dimensions: | 6.4 x 4.4 x .7 cm |
| Description: |
| Quartz slice with trapiche like formation. |
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| Viewed: |
11031 Time(s) |
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Roger Warin
Joined: 23 Jan 2013
Posts: 1242
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| Posted: Aug 08, 2022 03:22 Post subject: Re: The Mizunaka Collection |
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| Pseudo trapiche quartz ?
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Aug 08, 2022 18:12 Post subject: Re: The Mizunaka Collection - Quartz |
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| Roger Warin wrote: | | Pseudo trapiche quartz ? |
I am not sure that replacement is the cause for this formation.
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am mizunaka
Joined: 09 Apr 2010
Posts: 2213
Location: USA
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| Posted: Aug 09, 2022 00:20 Post subject: The Mizunaka Collection - Amethyst |
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| Mineral: | Quartz (variety amethyst), Galena, Chalcopyrite |
| Locality: | | September Mine (9th of September Mine) , Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria | |
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| Dimensions: | 14.0 x 7.5 cm |
| Description: |
| An attractive amethyst cluster with a galena cube and chalcopyrite crystal. |
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| Viewed: |
10893 Time(s) |
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| Mineral: | Chalcopyrite |
| Locality: | | September Mine (9th of September Mine) , Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria | |
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| Description: |
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| Viewed: |
10894 Time(s) |
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| Mineral: | Galena |
| Locality: | | September Mine (9th of September Mine) , Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria | |
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| Description: |
| Close up of galena crystal. |
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| Viewed: |
10873 Time(s) |
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