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Collection Macros
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Oliver B




Joined: 30 Jul 2018
Posts: 27
Location: Columbus, Ohio

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PostPosted: Aug 03, 2018 19:56    Post subject: Collection Macros  

Got some macros of pieces I've collected myself only. Iphone 4 with loupe as macro lens so don't judge me haha! I think they came out nicely. Most pieces are calcite or fluorite from Columbus, Ohio rock dumps from quarries. I also have a lucky find from my birth state of New Mexico, at the Bingham Mine. Two other finds came from Mexico and Morocco while on vacations.


IMG_6427.JPG
 Mineral: Calcite
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 2cm x 1.5cm
 Description:
Calcite after unknown fossil in dolostone matrix
 Viewed:  26165 Time(s)

IMG_6427.JPG


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Oliver B




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PostPosted: Aug 03, 2018 19:58    Post subject: Re: Collection Macros  

another piece


IMG_6431.JPG
 Mineral: Calcite
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 3cm x 2cm
 Description:
Calcite
 Viewed:  26180 Time(s)

IMG_6431.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:00    Post subject: Re: Collection Macros  

nice honey color


IMG_6433.JPG
 Mineral: Calcite
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: .5cm x .5cm
 Description:
Calcite
 Viewed:  26164 Time(s)

IMG_6433.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:09    Post subject: Re: Collection Macros  

clear fluorite


IMG_6443.JPG
 Mineral: Fluorite
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: Crystal .5cm by .5cm
 Description:
Fluorite with modified cubic growth it seems shifted to a rhomboid shape, all exhibit bright blue fluorescence under 390nm UV
 Viewed:  26190 Time(s)

IMG_6443.JPG



IMG_6445.JPG
 Mineral: Fluorite
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 1cm x 1cm (Crystal)
 Description:
Fluorite with same modified growth
 Viewed:  26154 Time(s)

IMG_6445.JPG



IMG_6447.JPG
 Mineral: Fluorite
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 1cm x 1cm (Crystal)
 Description:
Standard cubic growth
 Viewed:  26166 Time(s)

IMG_6447.JPG



IMG_6450.JPG
 Mineral: Fluorite
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 2cm x 2cm (Crystals)
 Description:
Standard cubic growth with blue fluorescence
 Viewed:  26158 Time(s)

IMG_6450.JPG



IMG_6451.JPG
 Mineral: Fluorite
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 15cm long x 1cm wide (vug)
 Description:
Fluorite with slightly modified growth in a long vug
 Viewed:  26155 Time(s)

IMG_6451.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:12    Post subject: Re: Collection Macros  

Agate and Quartz


IMG_6460.JPG
 Mineral: Quartz
 Dimensions: 5cm wide x 15cm long
 Description:
seems like iron staining on the otherwise clear quartz crystals found on same lump of agate and chalcedony
 Viewed:  26155 Time(s)

IMG_6460.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:14    Post subject: Re: Collection Macros  

Quartz geode


IMG_6461.JPG
 Mineral: Quartz
 Dimensions: geode is roughly 40cm x 30cm
 Description:
nice scepter of quartz
 Viewed:  26149 Time(s)

IMG_6461.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:15    Post subject: Re: Collection Macros  

both quartz finds were from the Olentangy River Columbus Ohio, Franklin County USA
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Oliver B




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PostPosted: Aug 03, 2018 20:20    Post subject: Re: Collection Macros  

New Mexico find


IMG_6481.JPG
 Mineral: Fluorite with Barite
 Locality:
Bingham, Hansonburg District, Socorro County, New Mexico, USA
 Dimensions: 20cm x 15cm
 Description:
Wonderful Blue
 Viewed:  26150 Time(s)

IMG_6481.JPG



IMG_6482.JPG
 Mineral: Fluorite
 Locality:
Bingham, Hansonburg District, Socorro County, New Mexico, USA
 Dimensions: 20cm x 15cm
 Description:
Deep Blue
 Viewed:  26142 Time(s)

IMG_6482.JPG



IMG_6483.JPG
 Mineral: Fluorite
 Locality:
Bingham, Hansonburg District, Socorro County, New Mexico, USA
 Dimensions: 20cm x 15cm
 Description:
Blue
 Viewed:  26146 Time(s)

IMG_6483.JPG



IMG_6485.JPG
 Mineral: Fluorite
 Locality:
Bingham, Hansonburg District, Socorro County, New Mexico, USA
 Dimensions: 20cm x 15cm
 Description:
Left side has phantoms almost reminiscent of cave in rock
 Viewed:  26159 Time(s)

IMG_6485.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:28    Post subject: Re: Collection Macros  

Morocco trip


IMG_6490.JPG
 Mineral: Fluorite
 Locality:
Morocco
 Description:
Found while hiking near a mine that I never found name of
6cm x 6cm
Wonderful purple phantom on top and blue green original growth. Brilliant blue fluorescence in 390nm UV
 Viewed:  26175 Time(s)

IMG_6490.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:28    Post subject: Re: Collection Macros  

same trip same piece


IMG_6494.JPG
 Mineral: Fluorite
 Locality:
Morocco
 Dimensions: 6cm x 6cm
 Description:
wonderful color
 Viewed:  26142 Time(s)

IMG_6494.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:32    Post subject: Re: Collection Macros  

From White rock quarry


IMG_6496.JPG
 Mineral: Fluorite with Celestine
 Locality:
White Rock Quarry, Clay Center, Ottawa County, Ohio, USA
 Dimensions: 1.5cm x 1.5cm (area of photo)
 Description:
Green fluorescence at 390nm UV
 Viewed:  26116 Time(s)

IMG_6496.JPG



IMG_6498.JPG
 Locality:
White Rock Quarry, Clay Center, Ottawa County, Ohio, USA
 Dimensions: 1.5cm x 1.5cm (Crystal)
 Description:
That Color
 Viewed:  26128 Time(s)

IMG_6498.JPG


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Oliver B




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PostPosted: Aug 03, 2018 20:34    Post subject: Re: Collection Macros  

mexico trip, found outside in a tailings pile


IMG_6502.JPG
 Mineral: Fluorite
 Locality:
Coahuila (Coahuila de Zaragoza), Mexico
 Dimensions: 4cm x 4cm (Crystal)
 Description:
the whole crystal was clear and just the very outermost layer began a purple colorization
 Viewed:  26596 Time(s)

IMG_6502.JPG



IMG_6507.JPG
 Mineral: Fluorite
 Locality:
Coahuila (Coahuila de Zaragoza), Mexico
 Dimensions: 3cm x 2cm
 Description:
different crystal with deep purple coloring
 Viewed:  26113 Time(s)

IMG_6507.JPG


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Firmo Espinar




Joined: 05 Apr 2017
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Location: Medellín, Colombia.


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PostPosted: Aug 04, 2018 06:34    Post subject: Re: Collection Macros  

Hi Oliver.

Please read the following link in order to avoid overloading the users posts box:

How to add multiple photos to a Post

Regards.
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Bob Carnein




Joined: 22 Aug 2013
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Location: Florissant, CO


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PostPosted: Aug 04, 2018 10:05    Post subject: Re: Collection Macros  

Hi Oliver,
The first three Alum Creek fluorites look like calcite to me. Hard to tell from the photos, but the first one appears to have rhombohedral cleavage; second looks like a complex parallel growth of calcite scalenohedra; third is hard to decipher but may be a "nail head" calcite crystal.
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Bob Harman




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PostPosted: Aug 04, 2018 10:37    Post subject: Re: Collection Macros  

OLIVER, I agree with BOB C. I would not be surprised if all your Alum Creek "fluorites" turned out to be calcite. Small calcites can occasionally cleave giving an impression of being a small fluorite crystal; I am just not sure on some of yours. And if it comes from the bike path, it would be fill from another (quarry?) locality.

I would like to see a picture or 2 of the whole specimen of your quartz photo showing the "scepter". That seems very unusual for that locality.
BOB
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Oliver B




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PostPosted: Aug 04, 2018 11:58    Post subject: Re: Collection Macros  

Hardness test of 4 after my tests, That's why they are so interesting to me; I wonder why their structure changed, I concluded that it had to be Fluorite. Thanks bob!
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Oliver B




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PostPosted: Aug 04, 2018 12:04    Post subject: Re: Collection Macros  

Bob Harman,
I will post a few pictures of the geode I collected. I also thought it very strange to be in the river. I almost thought it was a discarded geode someone else collected or lost from another locale, however it wasn't cracked open yet.



IMG_6512.JPG
 Mineral: Quartz
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 10cm x 10cm
 Description:
some more complete shots of the specimen
 Viewed:  25861 Time(s)

IMG_6512.JPG



IMG_6513.JPG
 Mineral: Quartz
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 10cm x 10cm
 Description:
exterior of geode
 Viewed:  25853 Time(s)

IMG_6513.JPG



IMG_6515.JPG
 Mineral: Quartz
 Locality:
Alum Creek, Columbus, Franklin County, Ohio, USA
 Dimensions: 10cm x 10cm
 Description:
area shot containing the scepter of quartz
 Viewed:  25854 Time(s)

IMG_6515.JPG


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Bob Carnein




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PostPosted: Aug 04, 2018 12:15    Post subject: Re: Collection Macros  

Hi, again--can you tell me how you tested the hardness on the Alum Creek fluorites?
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Bob Harman




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PostPosted: Aug 04, 2018 12:27    Post subject: Re: Collection Macros  

OLIVER, Your last 3 photos almost certainly show a Mexican geode of the type I have pictured. These were marketed as Rock Candy Geodes at the 2007 Tucson show. They are quite similar to yours with starburst like groups of small sceptered quartz crystals. I have the example pictured in the poster.
Unless there are other very similar examples definitely associated with the Olentangy River Ohio locality, finding your example suggests it was discarded by someone in the past. Look around in that area again and maybe you will be lucky with additional finds!
BOB



fullsizeoutput_29c6.jpeg
 Description:
 Viewed:  25820 Time(s)

fullsizeoutput_29c6.jpeg


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Oliver B




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PostPosted: Aug 04, 2018 13:07    Post subject: Re: Collection Macros  

Bob Carnein, I first tested the very tip of the crystal with my fingernail and it left visible scratches on my nail, following up I used a copper plated penny and found that it also scratched the copper. Finally I took a carbon steel knife and found that it scratched very easily on the fluorite. Combined with the fluorescence and the fact that the other crystals in the same rock dump were easily distinguishable as calcite with dog tooth spar formation, I drew the conclusion that it was Fluorite. I hope my hardness test was satisfactory.
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