Rocks and Minerals B/C

Test your knowledge of various Science Olympiad events.
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OrigamiPlanet
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Re: Rocks and Minerals B/C

Postby OrigamiPlanet » September 15th, 2017, 3:57 am

[img]http://www.daviddarling.info/images/augite.jpg[/img]
1. Identify the chemical composition of this specimen.
2. What mineral group does this belong to, and what other mineral(s) are also in the same category? BE SPECIFIC WITH THE FIRST PART.
3. What is it's main crystal structure? 
4. What three trace elements that can be found residing in the mineral?
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Re: Rocks and Minerals B/C

Postby whythelongface » September 17th, 2017, 2:45 pm

I think I will pass on this one... answer reveal?
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Re: Rocks and Minerals B/C

Postby Tailsfan101 » September 17th, 2017, 2:55 pm

I think I will pass on this one... answer reveal?
You know, there are other people who can answer. ;)
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Re: Rocks and Minerals B/C

Postby whythelongface » September 17th, 2017, 3:00 pm

I think I will pass on this one... answer reveal?
You know, there are other people who can answer. ;)
The question has been up for several days, I just don't feel like letting the thread die.
WEST WINDSOR-PLAINSBORO HIGH SCHOOL SOUTH '18
EMORY UNIVERSITY '22
SONT 2017 5th Place Medalist [Microbe Mission]

"One little Sciolyer left all alone,
He went out and hanged himself and then there were none."

Congratulations to WW-P South for winning 14th place at Nationals!

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Re: Rocks and Minerals B/C

Postby ScottMaurer19 » September 17th, 2017, 3:03 pm

I think I will pass on this one... answer reveal?
You know, there are other people who can answer. ;)
The question has been up for several days, I just don't feel like letting the thread die.
I've been reading all of them but I thought if I answered too many then it would be interpreted the wrong way (plus I still mess up with the hide feature for answers lol)
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Rocks: 1/1/1

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GLM: 1/1/1
Herp: 1/1/5
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Re: Rocks and Minerals B/C

Postby Tailsfan101 » September 17th, 2017, 3:13 pm

You know, there are other people who can answer. ;)
The question has been up for several days, I just don't feel like letting the thread die.
I've been reading all of them but I thought if I answered too many then it would be interpreted the wrong way (plus I still mess up with the hide feature for answers lol)

Code: Select all

[hide]Shown text|Hidden text[/hide]
The '|' key is located directly below the backspace key on most keyboards.
2020 Treasure Valley Homeschool Wiki (Division C)
2020 events: DD, GLM, DG, PM
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GLM: -/-/-/31
WIDI: -/-/-/24
PTQ: -/-/-/41
Assassinator for games #118 and 136

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Re: Rocks and Minerals B/C

Postby OrigamiPlanet » September 17th, 2017, 4:56 pm

I think I will pass on this one... answer reveal?
Okay, well here is your answer for this: 1. Augite
2. Pyroxene Group [In Silicates] along with Rhodonite
3. Monoclinic
4. Zinc, manganese and titanium
Div. C - Cumberland Valley High School

Events: Battle at Valley Forge/MC Barons
Codebusters (3/3); Dynamic Planet (3/1); Astronomy (-/2)

Substitute in Event
Geologic Mapping (-/2)

Email me for anything!

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Re: Rocks and Minerals B/C

Postby whythelongface » September 17th, 2017, 5:24 pm

What are your tricks for identifying augite/pyroxene vs. hornblende?
WEST WINDSOR-PLAINSBORO HIGH SCHOOL SOUTH '18
EMORY UNIVERSITY '22
SONT 2017 5th Place Medalist [Microbe Mission]

"One little Sciolyer left all alone,
He went out and hanged himself and then there were none."

Congratulations to WW-P South for winning 14th place at Nationals!

ScottMaurer19
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Re: Rocks and Minerals B/C

Postby ScottMaurer19 » September 17th, 2017, 5:46 pm

What are your tricks for identifying augite/pyroxene vs. hornblende?
(it's hard to in pictures. I wasn't sure which one it was myself) Cleavage plane angles, hornblende is sparklier, augite typically has a greenish tint, hornblende is typically black, etc.
Solon '19 Captain, CWRU '23
2017 (r/s/n):
Hydro: 3/5/18
Robot Arm: na/1/1
Rocks: 1/1/1

2018 (r/s/n):
Heli: 2/1/7 
Herp: 1/4/4
Mission: 1/1/6
Rocks: 1/1/1
Eco: 6/3/9

2019 (r/s/n):
Fossils: 1/1/1
GLM: 1/1/1
Herp: 1/1/5
Mission: 1/1/3
WS: 4/1/10

Top 3 Medals: 144
Golds: 80

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OrigamiPlanet
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Re: Rocks and Minerals B/C

Postby OrigamiPlanet » September 17th, 2017, 8:25 pm

What are your tricks for identifying augite/pyroxene vs. hornblende?
(it's hard to in pictures. I wasn't sure which one it was myself) Cleavage plane angles, hornblende is sparklier, augite typically has a greenish tint, hornblende is typically black, etc.
Basically what Scott said, but also hornblende is usually more lustrous? Maybe I'm using the wrong terminology but not sure.
Div. C - Cumberland Valley High School

Events: Battle at Valley Forge/MC Barons
Codebusters (3/3); Dynamic Planet (3/1); Astronomy (-/2)

Substitute in Event
Geologic Mapping (-/2)

Email me for anything!


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