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Montanpark
Joined: 06 Nov 2008
Posts: 241
Location: Mainz
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 Posted: Jan 11, 2010 18:36 Post subject: Re: Jessica's mineral collection |
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Hi Jess,
lovely specimens and thanks for sharing. Regarding the vesuvianite (titanite) .. i am with John, Jordi etc. .. looks quite like a Fushan vesuvianite. I had some of those in my stock and they are quite typical,
cheers
Roger
(Regards to Bob!)
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Jessica Simonoff
Joined: 30 May 2009
Posts: 19
Location: United States
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| Posted: Jan 11, 2010 18:49 Post subject: Re: Jessica's mineral collection |
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Thank you everyone for your help with identifying the vesuvianite! Today I did a density test on it, and the result was that it was definitely vesuvianite.
Jessica
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Pete Richards
Site Admin
Joined: 29 Dec 2008
Posts: 845
Location: Northeast Ohio
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| Posted: Jan 11, 2010 19:12 Post subject: Re: Jessica's mineral collection |
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| Jessica Simonoff wrote: | Thank you everyone for your help with identifying the vesuvianite! Today I did a density test on it, and the result was that it was definitely vesuvianite.
Jessica |
That's very resourceful, congratulations! I wonder how many other members of this forum have ever done a density test. (Perhaps more than I think....) There are many simple and powerful tests that a collector can do without fancy equipment, but we all tend to look for someone to do x-ray studies or other high-tech stuff! Great if you can get it, but you're not helpless if you cannot!
_________________
Collecting and studying crystals with interesting habits, twinning, and epitaxy |
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Jessica Simonoff
Joined: 30 May 2009
Posts: 19
Location: United States
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| Posted: Jan 30, 2010 18:52 Post subject: Re: Jessica's mineral collection |
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Thank you Pete.
Here are some more photos, these are all self-collected.
| Description: |
| Calcite crystals from National Limestone Quarry, Pennsylvania. The crystals have an interesting habit but I'm not good enough at crystallography to know about them. 8x6x4 cm and the largest crystal is 2 cm long. |
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93434 Time(s) |
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| A closer photo of the hematite from Willis Mountain Mine. |
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92423 Time(s) |
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| Description: |
| Hematite from Willis Mountain Mine, Virginia. 11.5x8x1 |
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92470 Time(s) |
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| Aquamarine on smokey quartz with feldspar from Tripp Mine, Alstead, New Hampshire. Crystal is 5 cm long. |
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92504 Time(s) |
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| Wavellite from National Limestone Quarry, Pennsylvania. 8x5x3.5 cm. |
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92405 Time(s) |
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| Fluorite from National Limestone Quarry, Pennsylvania. Crystal is 1x1.5 cm. |
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92556 Time(s) |
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| Calcite crystals from National Limestone Quarry, Pennsylvania. 4x4x3 cm. |
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92472 Time(s) |
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| Manganese oxide on limestone. The main dendrite is 6 cm across. From National Limestone quarry, Mount Pleasant Mills, Pennsylvania. |
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92433 Time(s) |
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| Aquamarine from Tripp Mine, Alstead, New Hampshire. Crystal is 4 cm long. |
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92752 Time(s) |
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| Grossular garnets of serpentine from Hunting Hill Quarry, Rockville, Maryland. 6x6x6 cm. |
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92466 Time(s) |
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