Rocks and Minerals B/C

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Re: Rocks and Minerals B/C

Postby Unome » January 15th, 2017, 2:20 pm

Anybody have tips for what to put in our binder, because i feel like its just moot, because if you can bring your book, then you already have all of the information readily available.
Thanks a lot
Field guides are no longer allowed as of this year (although tbh a good binder is far better than a field guide).
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Re: Rocks and Minerals B/C

Postby ProudHufflepuff » January 18th, 2017, 12:35 pm

Field guides are only allowed if you rip out or photocopy the pages. Does anyone have any sites with organized, simple fact sheets on many different rocks and minerals? The only ones that I can find seem like they are writing a novel on every mineral! I have four events and would just like a short and simple, yet informative page on each. Any suggestions? :?

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Re: Rocks and Minerals B/C

Postby Unome » January 18th, 2017, 1:03 pm

Field guides are only allowed if you rip out or photocopy the pages. Does anyone have any sites with organized, simple fact sheets on many different rocks and minerals? The only ones that I can find seem like they are writing a novel on every mineral! I have four events and would just like a short and simple, yet informative page on each. Any suggestions? :?
I'd recommend that you make your own sheets consisting of the most important info on each rock/mineral.
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Re: Rocks and Minerals B/C

Postby GoldandSilver » January 28th, 2017, 12:27 pm

Are there any minerals/rocks that will be tested that are not on the list?

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Re: Rocks and Minerals B/C

Postby John Richardsim » January 28th, 2017, 1:28 pm

Are there any minerals/rocks that will be tested that are not on the list?
There shouldn't be, unless whatever tournament decides to add up to 5 specimens as allowed by the rules, in which case your coach should be/should've been informed at least 3 weeks prior.
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Re: Rocks and Minerals B/C

Postby ProudHufflepuff » January 30th, 2017, 8:53 am

I know that I need to make my own pages, but info seems to be very scattered and some things on my template are hard to find. I meant does anyone know about any sites with lots of info in a format that is easy to understand?

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Re: Rocks and Minerals B/C

Postby driedmango » January 30th, 2017, 3:29 pm

I know that I need to make my own pages, but info seems to be very scattered and some things on my template are hard to find. I meant does anyone know about any sites with lots of info in a format that is easy to understand?
minerals.net is super helpful, and if you need a cross-reference, wikipedia's always good
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Re: Rocks and Minerals B/C

Postby Skink » January 30th, 2017, 7:06 pm

I know that I need to make my own pages, but info seems to be very scattered and some things on my template are hard to find. I meant does anyone know about any sites with lots of info in a format that is easy to understand?
I made my pages by splicing information from many print references (imagine what my desk looked like, yikes) onto a template. I'm at a loss for describing how long this took, but the product was pretty sweet.

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Re: Rocks and Minerals B/C

Postby AirPotato » February 1st, 2017, 4:27 pm

Hey, very new to the event, I had a few identification questions I wanted to clarify here, especially some of the more look-alike type specimens.

Ulexite vs. Satin Spar vs Selenite
Hematite vs. Magnetite
Barite (in general)
Bornite vs. Chalcopyrite
Augite vs Hornblende
Albite (general tips would be appreciated) vs. Orthoclase
Tips for dolomite (in general)
Apatite vs. Beryl vs. Tourmaline vs. Topaz

If anyone has any tips that could help clarify these identification problems, or overall ID event tips, Id really appreciate it. <3

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Re: Rocks and Minerals B/C

Postby Clematis » February 2nd, 2017, 7:14 pm

Hey, very new to the event, I had a few identification questions I wanted to clarify here, especially some of the more look-alike type specimens.

Ulexite vs. Satin Spar vs Selenite
Hematite vs. Magnetite
Barite (in general)
Bornite vs. Chalcopyrite
Augite vs Hornblende
Albite (general tips would be appreciated) vs. Orthoclase
Tips for dolomite (in general)
Apatite vs. Beryl vs. Tourmaline vs. Topaz

If anyone has any tips that could help clarify these identification problems, or overall ID event tips, Id really appreciate it. <3
Here's what I can give you

Ulexite vs. Satin Spar vs Selenite - Hardness to differentiate between gypsum and ulexite, then angle of cleavage to differentiate between Satin Spar and Selenite.
Hematite vs. Magnetite - magnetite is magnetic, but if they don't give you a magnet you better hope for a streak plate or samples that vary in color
Barite (in general) - I haven't really figured this one out either... Barite just does what it wants in terms of appearance. Usually it is partially orange or pinkish?
Bornite vs. Chalcopyrite - Overall color of the parts that aren't sparkly purple/red/yellow/blue
Augite vs Hornblende - Augite is harder than hornblende. If don't have samples to scratch each other, I find that for some reason hornblende will often look more fragile to me.
Albite (general tips would be appreciated) vs. Orthoclase - Albite may have a bluish tint, but celestite may also. Orthoclase is typically more pinkish/light orange
Tips for dolomite (in general) - You just have to hope really hard for a sample with one of the more common dolomite habits. There's one form that if you see something like it, it's probably dolomite, but I've seen it with barite too. Maybe hardness or streak?
Apatite vs. Beryl vs. Tourmaline vs. Topaz - Appearance, crystal shape/structure, striations, hardness, and luster help me.

Overall, do a lot of practice. Does your team have mineral samples to practice with? Or are you learning appearances based off of images? While the images are good for introducing you to a bunch of different forms of the same mineral, there's a lot you can learn by looking at an actual sample. Also, practice a lot. The more you see the minerals, the more familiar they will become.
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Re: Rocks and Minerals B/C

Postby CVMSAvalacheStudent » February 3rd, 2017, 6:58 pm

If Bauxite a rock, why is it in the minerals section?
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Re: Rocks and Minerals B/C

Postby Jamerz » February 3rd, 2017, 8:52 pm

If Bauxite a rock, why is it in the minerals section?
Good Question. I don't know, to tell the truth. If I remember correctly, Bauxite is a rock (some webs classify it as a minerals so rip), but (correct me if I'm wrong), it refers to a group of rocks with a similar composition. I dunno, hope someone else knows.

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Re: Rocks and Minerals B/C

Postby Magikarpmaster629 » February 4th, 2017, 10:55 am

If Bauxite a rock, why is it in the minerals section?
Good Question. I don't know, to tell the truth. If I remember correctly, Bauxite is a rock (some webs classify it as a minerals so rip), but (correct me if I'm wrong), it refers to a group of rocks with a similar composition. I dunno, hope someone else knows.
*group of minerals
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Re: Rocks and Minerals B/C

Postby CVMSAvalacheStudent » February 7th, 2017, 6:33 pm

If Bauxite a rock, why is it in the minerals section?
Good Question. I don't know, to tell the truth. If I remember correctly, Bauxite is a rock (some webs classify it as a minerals so rip), but (correct me if I'm wrong), it refers to a group of rocks with a similar composition. I dunno, hope someone else knows.
*group of minerals
Then what minerals does it compose of?
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Re: Rocks and Minerals B/C

Postby CVMSAvalacheStudent » February 8th, 2017, 4:34 pm

Can someone list the varieties of beryl? I got Emerald and Aquamarine but I don't have anything else.
Thanks.
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