Rocks and Minerals B/C

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OrigamiPlanet
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Re: Rocks and Minerals B/C

Post by OrigamiPlanet » 

[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

Post by whythelongface »

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

Post by Tailsfan101 »

whythelongface wrote: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

Post by whythelongface »

Tailsfan101 wrote:
whythelongface wrote: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/Grover for winning 2nd/1st place at NJ States!
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Re: Rocks and Minerals B/C

Post by ScottMaurer19 »

whythelongface wrote:
Tailsfan101 wrote:
whythelongface wrote: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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Re: Rocks and Minerals B/C

Post by Tailsfan101 »

ScottMaurer19 wrote:
whythelongface wrote:
Tailsfan101 wrote: 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.
"Blessed are you when people insult you and persecute you, and falsely say all kinds of evil against you because of Me. Rejoice and be glad, for your reward in heaven is great; for in the same way they persecuted the prophets who were before you." Matthew 5:11-12

I have no regrets.
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Re: Rocks and Minerals B/C

Post by OrigamiPlanet »

whythelongface wrote: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
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Re: Rocks and Minerals B/C

Post by whythelongface »

What are your tricks for identifying augite/pyroxene vs. hornblende?
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"One little Sciolyer left all alone,
He went out and hanged himself and then there were none."

Congratulations to WW-P South/Grover for winning 2nd/1st place at NJ States!
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Re: Rocks and Minerals B/C

Post by ScottMaurer19 »

whythelongface wrote: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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Re: Rocks and Minerals B/C

Post by OrigamiPlanet »

ScottMaurer19 wrote:
whythelongface wrote: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.
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