Rocks & Minerals B/C

Skink
Exalted Member
Exalted Member
Posts: 947
Joined: February 8th, 2009, 12:23 pm
Division: C
State: IL
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by Skink » December 16th, 2012, 5:58 pm

Dunno if this helps, but I did a quick search. I know there is an exhaustive but clear explanation (at least one ;) ) of Bowen's out there that I've used as a reference before, but I don't have a clue where I got it. So...

Here you have a simple treatment of the igneous rock groups formed including a figure that may help. Scroll down to section B here for a little more information. Lastly, the first few slides in this lecture may be helpful. Ignore the thermo garbage in the end...slide 5 is the one I want to direct your attention to.
That help?

EDIT: Did some digging through my stuff and found this. You want page 10 (or Ctrl+F to Bowen's). I think points 10 and 11 are relevant to what you're after, though the rest is all good, of course.

wufactor2012
Member
Member
Posts: 92
Joined: December 13th, 2012, 7:07 pm
Division: Grad
State: TX
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by wufactor2012 » December 19th, 2012, 6:28 pm

Does anyone know any varieties of kaolinite or hornblende?

User avatar
hexagonaria
Member
Member
Posts: 212
Joined: July 14th, 2010, 11:00 pm
Division: C
State: OH
Location: Pepperland
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by hexagonaria » December 29th, 2012, 10:52 am

Has anyone ever had a question about Brinell hardness before? As opposed to the traditional Moh's hardness scale.
DFTBA

User avatar
10manwire
Member
Member
Posts: 69
Joined: October 24th, 2011, 6:24 pm
Division: Grad
Location: Livin' in a big old city
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by 10manwire » December 30th, 2012, 4:16 pm

I have not and I doubt it will ever be asked because "the conditions of the test used to obtain the number must be specified" and that would create some variance and ultimately be harder to grade for the proctor.
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away." ~ Henry David Thoreau

"We shall never know all the good that a simple smile can do." ~ Mother Teresa

User avatar
darkdeserthighway
Member
Member
Posts: 239
Joined: December 29th, 2012, 3:35 pm
Division: Grad
State: NY
Location: take a guess
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by darkdeserthighway » January 2nd, 2013, 4:51 pm

Has anyone ever had a question that asked where specific rocks or minerals could be found in the world? Just wondering in case I should know.
2015 States- Invasives 10th, Fossils 12th
2014 States- Rocks and Minerals 3rd
2013 States- Rocks and Minerals 7th, Water Quality 9th
2012 States- Rocks and Minerals 10th

melissay63
Member
Member
Posts: 99
Joined: February 13th, 2012, 4:33 pm
Division: B
State: CA
Location: Do you mind?
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by melissay63 » January 2nd, 2013, 5:25 pm

wufactor2012 wrote:Does anyone know any varieties of kaolinite or hornblende?
Hornblende is a variety of amphibole and amphibole is a family that's just not on our list
i assumed kaolinite doesn't have any varieties, if you count clay?
So far...medaling has been a rollercoaster
but hopefully, next one would be on top!

User avatar
Allinea
Member
Member
Posts: 96
Joined: April 3rd, 2011, 5:32 pm
Division: C
State: MN
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by Allinea » January 2nd, 2013, 7:55 pm

darkdeserthighway wrote:Has anyone ever had a question that asked where specific rocks or minerals could be found in the world? Just wondering in case I should know.
Not in that exact wording, no. Mainly, I think, because there are many places to find minerals, and many minerals can be found in multiple locations. However, there was a question once about where a mineral was found in the US, so yes. I think the locations would be a given to have in your binder.
2013-2014 Season: [Boyceville/Conference/River Falls/Regions/State]
WIDI[2/-/6/2/x]
Rocks[5/1/3/-/x]
Glider[13/8/x/-/x]
Rollercoaster[3/-/12/2/x]
Sustainability[12/-/7/-/-]
Exp. Design[-/3/-/-/-]

User avatar
10manwire
Member
Member
Posts: 69
Joined: October 24th, 2011, 6:24 pm
Division: Grad
Location: Livin' in a big old city
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by 10manwire » January 2nd, 2013, 9:43 pm

Allinea wrote:
darkdeserthighway wrote:Has anyone ever had a question that asked where specific rocks or minerals could be found in the world? Just wondering in case I should know.
Not in that exact wording, no. Mainly, I think, because there are many places to find minerals, and many minerals can be found in multiple locations. However, there was a question once about where a mineral was found in the US, so yes. I think the locations would be a given to have in your binder.
I agree with Allinea, as I have had questions about which countries that produce a certain minerals in the highest quantities as well as famous localities for certain rocks.
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away." ~ Henry David Thoreau

"We shall never know all the good that a simple smile can do." ~ Mother Teresa

User avatar
darkdeserthighway
Member
Member
Posts: 239
Joined: December 29th, 2012, 3:35 pm
Division: Grad
State: NY
Location: take a guess
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by darkdeserthighway » January 3rd, 2013, 7:52 am

10manwire wrote:
Allinea wrote:
darkdeserthighway wrote:Has anyone ever had a question that asked where specific rocks or minerals could be found in the world? Just wondering in case I should know.
Not in that exact wording, no. Mainly, I think, because there are many places to find minerals, and many minerals can be found in multiple locations. However, there was a question once about where a mineral was found in the US, so yes. I think the locations would be a given to have in your binder.
I agree with Allinea, as I have had questions about which countries that produce a certain minerals in the highest quantities as well as famous localities for certain rocks.
Alright, thank you both for your advice! :D
2015 States- Invasives 10th, Fossils 12th
2014 States- Rocks and Minerals 3rd
2013 States- Rocks and Minerals 7th, Water Quality 9th
2012 States- Rocks and Minerals 10th

JuiceBagel3
Member
Member
Posts: 40
Joined: August 11th, 2012, 4:25 am
Division: C
State: NY
Has thanked: 0
Been thanked: 0

Re: Rocks & Minerals B/C

Post by JuiceBagel3 » January 20th, 2013, 10:31 am

When identifying mineral samples with multiple minerals in each sample, or just idenifying single minerals in general, what do you guys look for first? Because we all know color is not reliable.
Columbia High School
Events: Water Quality, Glaciers, Rocks and Minerals, Forestry

Locked

Return to “2013 Study Events”

Who is online

Users browsing this forum: No registered users and 1 guest