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Collection of Michael Shaw
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Roger Warin




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PostPosted: Jul 24, 2013 10:11    Post subject: Re: Collection of Michael Shaw  

Hello,
I enjoyed Stellerite, in delicate shades. As well as heulandite.
Roger.
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Michael Shaw
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PostPosted: Jul 24, 2013 14:17    Post subject: Re: Collection of Michael Shaw  

Roger Warin wrote:
Hello,
I enjoyed Stellerite, in delicate shades. As well as heulandite.
Roger.


Thanks Roger. So many of the zeolites are white or colorless, it's nice when there are inclusions that impart a little color.
Michael
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Michael Shaw
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PostPosted: Jul 26, 2013 09:42    Post subject: Re: Collection of Michael Shaw  

More Indian zeolites.


1121 Fluorapophyllite.jpg
 Description:
Apophyllite-(KF)
Kandivali Quarry, Malad, Ward 38, Mumbai District, Maharashtra, India
7.5 x 9.5 cm.
Colorless elongated pseudocubic crystals of apophyllite on pale green prehnite associated with snow white spheres of acicular okenite.
 Viewed:  42133 Time(s)

1121 Fluorapophyllite.jpg



0546 Fluorapophyllite.jpg
 Description:
Apophyllite-(KF)
Jalgaon District, Maharashtra, India
4.5 x 7.1 cm.
A chalcedony stalactite covered with colorless apophyllite crystals and a pinkish stilbite crystal speckled with dark green jugoldite.
 Viewed:  42203 Time(s)

0546 Fluorapophyllite.jpg



0535 Scolecite.jpg
 Description:
Scolecite
Junnar, Pune District, Maharashtra, India
4.5 x 9.4 cm.
Three intersecting sprays of slender colorless scolecite crystals.
 Viewed:  42116 Time(s)

0535 Scolecite.jpg



0444 Heulandite.jpg
 Description:
Heulandite
Aurangabad District, Maharashtra, India
5.7 x 8.3 cm.
A group of heulandite crystals grading from colorless to pale peach on chalky-white mordenite.
 Viewed:  42047 Time(s)

0444 Heulandite.jpg


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Roger Warin




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PostPosted: Jul 26, 2013 10:12    Post subject: Re: Collection of Michael Shaw  

Hello Michael,
As ever, perfect.
I forgot morphological distinctions (on termination) that allow differentiation of natrolite, mesolite and scolecite.
Thank you for sharing.
Roger.
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Michael Shaw
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PostPosted: Jul 26, 2013 14:28    Post subject: Re: Collection of Michael Shaw  

Roger Warin wrote:
Hello Michael,
As ever, perfect.
I forgot morphological distinctions (on termination) that allow differentiation of natrolite, mesolite and scolecite.
Thank you for sharing.
Roger.


Hi Roger,
I am not aware of any absolute way to visually distinguish between natrolite, mesolite, and scolecite. Generally speaking, mesolite forms the thinnest crystals, natrolite somewhat larger, and scolecite forms more robust crystals, but this isn't a reliable identifying characteristic. Of course natrolite and mesolite are orthorhombic, while scolecite is monoclinic. The problem is, twinning makes scolecite appear to be orthorhombic. To my knowledge, the terminations of all three minerals are typically low angle pyramids. If anyone knows a reliable way to tell these apart visually, feel free to chime in.
Michael
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Michael Shaw
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PostPosted: Jul 28, 2013 14:13    Post subject: Re: Collection of Michael Shaw  

Continuing with minerals from the Deccan traps.


1383 Fluorapophyllite.JPG
 Description:
Apophyllite-(KF)
Aurangabad District, Maharashtra, India
8.5 x 15.0 cm.
Colorless crystals of apophyllite with white stilbite crystals, scattered over a thin crust of small reddish-pink heulandite crystals.
 Viewed:  41740 Time(s)

1383 Fluorapophyllite.JPG



1335 Calcite.jpg
 Description:
Calcite
Vambori, Aurangabad District, Maharashtra, India
4.5 x 5.0 cm.
Pale green scalenohedral calcite crystal composed of multiple stacked rhombs, with small calcite rhombs around the base. Recovered during a well dig in 2005.
 Viewed:  41764 Time(s)

1335 Calcite.jpg



1397 Thomsonite.jpg
 Description:
Thomsonite
Soygaon, Aurangabad District, Maharashtra, India
4.5 x 7.6 cm.
A group of creamy white thomsonite spheres with reddish-brown iron oxide tinges.
 Viewed:  41826 Time(s)

1397 Thomsonite.jpg



1334 Stilbite.jpg
 Description:
Stilbite
Aurangabad District, Maharashtra, India
3.2 x 8.0 cm.
A group of colorless stilbite crystals attached to a thin stalactite of salmon-colored heulandite crystals
 Viewed:  41773 Time(s)

1334 Stilbite.jpg


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Michael Shaw
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PostPosted: Jul 29, 2013 15:28    Post subject: Re: Collection of Michael Shaw  

Continuing with specimens from India's Deccan traps - a quintet of stilbite.


1377 Stilbite.jpg
 Description:
Stilbite
Nasik District, Maharashtra, India
4.5 x 6.5 cm.
Cluster of bright orange stilbite which displays the typical wheat-sheave arrangement.
 Viewed:  41673 Time(s)

1377 Stilbite.jpg



1113 Stilbite.jpg
 Description:
Stilbite
Sakur, Ahmednagar District, Maharashtra, India
8.0 x 11.0 cm
A group of lustrous, white crystals to 5.5 cm partially colored reddish-brown by iron oxide.
 Viewed:  41696 Time(s)

1113 Stilbite.jpg



1093 Stilbite.jpg
 Description:
Stilbite
Jalgaon District, Maharashtra, India
5.7 x 6.0 cm
A large bowtie stilbite with a few smaller accessory stilbite crystals.
 Viewed:  41733 Time(s)

1093 Stilbite.jpg



2071 Stilbite.jpg
 Description:
Stilbite
Jalgaon District, Maharashtra, India
7.0 x 7.7 cm.
Pale salmon-colored stilbite crystals on stalactitic drusy blue-gray chalcedony. Collected in 2005.
 Viewed:  41752 Time(s)

2071 Stilbite.jpg



1266 Heulandite.jpg
 Description:
Stilbite
Sakur, Ahmednagar District, Maharashtra, India
4.0 x 8.1 cm.
A group of stilbite crystals included with green celadonite.
 Viewed:  41754 Time(s)

1266 Heulandite.jpg


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GneissWare




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PostPosted: Jul 29, 2013 15:45    Post subject: Re: Collection of Michael Shaw  

As always, really nice photos (and specimens). Are you shooting on glass?
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Roger Warin




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PostPosted: Jul 29, 2013 16:28    Post subject: Re: Collection of Michael Shaw  

what else to say, wow
Roger.
PS: same questions.
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Michael Shaw
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PostPosted: Jul 29, 2013 17:50    Post subject: Re: Collection of Michael Shaw  

GneissWare wrote:
As always, really nice photos (and specimens). Are you shooting on glass?


Thank you Bob and Roger. Yes, the specimens rest on a a piece of glass and the backgrounds, consisting of various colored mat boards, are placed at a 45 degree angle below the glass. A single light illuminates the background and creates the gradient effect, I use 3 lights above to illuminate the specimen, and often a reflector or two to highlight crystal faces, etc. I use halogen lights with the camera white balance set to the color temperature of the bulbs. It's not a real complex setup but yields adequate results for my needs.
Michael
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Don Lum




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PostPosted: Jul 29, 2013 18:17    Post subject: Re: Collection of Michael Shaw  

Michael,

I am enjoying your collection.

Thanks for the photography tips.

Don

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Greg Lilly




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PostPosted: Jul 29, 2013 21:51    Post subject: Re: Collection of Michael Shaw  

Hi Michael,
great photos, I love the calcite #1335, I remember these coming onto the market but I didn't manage to get one,
Thanks for sharing.
Greg
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Michael Shaw
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PostPosted: Jul 30, 2013 08:03    Post subject: Re: Collection of Michael Shaw  

Thanks Don. I am enjoying looking through your collection as well.

Thanks Greg. These pale green calcites were part of a relatively small find, and they weren't widely distributed amongst the Indian dealers. They were only available for a short time, so I'm glad I was able to pick this one up when I did.

Michael
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PostPosted: Jul 31, 2013 09:26    Post subject: Re: Collection of Michael Shaw  

Continuing with minerals from India's Deccan traps.


1340 Scolecite.jpg
 Description:
Scolecite
Vambori, Ahmednagar District, Maharashtra, India
5.5 x 7.0 cm.
Spherical growth of bright white scolecite with minor apophyllite-(KF).
 Viewed:  45701 Time(s)

1340 Scolecite.jpg



1336 Pentagonite.jpg
 Description:
Pentagonite
Quarry #4, Wagholi, Pune District, Maharashtra, India
6.0 x 6.2 cm., FOV~4.0 cm.
Two groups of pentagonite resting on a crust of blue chalcedony and white mordenite on brown basalt.
 Viewed:  45706 Time(s)

1336 Pentagonite.jpg



1329 Stilbite.jpg
 Description:
Apophyllite-(KF)
Kolhar, Ahmednagar District, Maharastra, India
9.0 x 11.0 cm.
Colorless to pale pink crystals of apophyllite-(KF) and stilbite covering a coral-like growth of pink chalcedony. Collected in 2005.
 Viewed:  45709 Time(s)

1329 Stilbite.jpg



1327 Fluorapophyllite.jpg
 Description:
Apophyllite-(KF)
Nasik, Masik District, Maharashtra, India
7.6 x 9.0 cm.
Doubly-terminated, glassy prism of apophyllite-(KF) with a greenish central zone and colorless terminations associated with pale peach stilbite crystals and smaller colorless apophyllite crystals.
 Viewed:  45704 Time(s)

1327 Fluorapophyllite.jpg



1365 Calcite - Mirzapur, India.jpg
 Description:
Calcite
Mirzapur, Gangapur District, Maharashtra, India
8.1 x 10.9 cm.
Sharp calcite scalenohedrons to 2.5 cm with bladed, white stilbite crystals on drusy pink heulandite. Collected in 2006.
 Viewed:  45721 Time(s)

1365 Calcite - Mirzapur, India.jpg


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PostPosted: Aug 02, 2013 09:50    Post subject: Re: Collection of Michael Shaw  

Continuing with minerals from India's Deccan traps.


1533 Calcite.jpg
 Description:
Calcite
Panvel, Raigad District, Maharashtra, India
7.1 x 11.0 cm.
Colorless groups of scalenohedral calcite to 3.5 cm on pale peach stilbite and quartz.
 Viewed:  45629 Time(s)

1533 Calcite.jpg



1419 Stilbite.jpg
 Description:
Stilbite-(Ca)
Chalsigaon, Jalgaon District, Maharashtra, India
6.6 x 6.8 cm.
Bladed, colorless stilbite crystals to 4.0 cm on a stalactite of small peach-colored heulandite crystals.
 Viewed:  45625 Time(s)

1419 Stilbite.jpg



1420 Fluorapophyllite.jpg
 Description:
Fluorapophyllite-(K)
Ahmednagar District, Maharashtra, India
5.0 x 9.5 cm.
An intersecting group of apophyllite crystals to 5.2 cm with pale tan stilbite crystals.
 Viewed:  45638 Time(s)

1420 Fluorapophyllite.jpg



1617 Chalcedony ps. calcite.jpg
 Description:
Quartz ps. calcite
Jalgaon District, Maharashtra, India
7.5 x 9.9 cm.
Colorless quartz epimorphing calcite associated with stalactitic chalcedony and peach-colored stilbite crystals.
 Viewed:  45642 Time(s)

1617 Chalcedony ps. calcite.jpg



1624 Chalcedony.jpg
 Description:
Quartz
Jamner, Jalgaon District, Maharashtra, India
10.1 x 14.0 cm.
Slender fingers of milky white chalcedony with minor stilbite.
 Viewed:  45635 Time(s)

1624 Chalcedony.jpg


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