Rocks & Minerals B/C ID/Question Marathon

Test your knowledge of various Science Olympiad events
User avatar
solakmagic
Member
Member
Posts: 40
Joined: March 9th, 2012, 3:25 pm
Division: C
State: PA

Re: Rocks & Minerals B/C ID/Question Marathon

Postby solakmagic » February 7th, 2014, 11:43 am

Aragonite, Pyrite, aaaaaaaaaaaaaaaand Calcite
"Genius is one per cent inspiration, ninety nine per cent perspiration" - Thomas Alva Edison

vxpvm
Member
Member
Posts: 10
Joined: November 9th, 2013, 8:49 pm
Division: C
State: CA

Re: Rocks & Minerals B/C ID/Question Marathon

Postby vxpvm » February 7th, 2014, 6:12 pm

Yes to rockster, it's chalcopyrite, quartz, and calcite. Congratulations on your 9th! I'm going to an Invitationals tomorrow c: Go go go

cellobix
Member
Member
Posts: 0
Joined: February 24th, 2012, 3:03 pm
Division: C
State: KS

Re: Rocks & Minerals B/C ID/Question Marathon

Postby cellobix » February 19th, 2014, 6:34 pm

To keep things moving:
[img]https://dl.dropboxusercontent.com/u/15231443/Mineral%20Replacement.jpg[/img]
What two minerals are shown here?
Explain the formation of this specimen. Which mineral came "first?"

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

Re: Rocks & Minerals B/C ID/Question Marathon

Postby darkdeserthighway » February 19th, 2014, 7:24 pm

To keep things moving:
[img]https://dl.dropboxusercontent.com/u/15231443/Mineral%20Replacement.jpg[/img]
What two minerals are shown here?
Explain the formation of this specimen. Which mineral came "first?"
malachite and azurite, azurite came "first", and over time, became malachite through weathering
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

sofossils
Member
Member
Posts: 61
Joined: September 28th, 2011, 5:05 pm
Division: Grad
State: PA

Re: Rocks & Minerals B/C ID/Question Marathon

Postby sofossils » February 24th, 2014, 5:44 am

I agree with darkdeserthighway. Can we revive this?
[img]http://imagehost.vendio.com/a/35078160/aview/Aragonite.jpg[/img]
Assistant Coach of AHSO
Yale University '21

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

Re: Rocks & Minerals B/C ID/Question Marathon

Postby wufactor2012 » February 24th, 2014, 8:57 am

it is aragonite and its a polymorph of calcite and doesn't have a definite crystal

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

Re: Rocks & Minerals B/C ID/Question Marathon

Postby Allinea » February 24th, 2014, 9:21 am

Aragonite, they share the same chemical formula; both are calcium carbonate.
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
hexagonaria
Member
Member
Posts: 212
Joined: July 14th, 2010, 11:00 pm
Division: C
State: OH
Location: Pepperland

Re: Rocks & Minerals B/C ID/Question Marathon

Postby hexagonaria » February 24th, 2014, 10:12 am

that is aragonite, which is isomorphic with calcite, meaning that it has the same chemical formula, CaCO3, but a different crystal structure.
DFTBA

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

Re: Rocks & Minerals B/C ID/Question Marathon

Postby darkdeserthighway » February 24th, 2014, 12:43 pm

I agree with all of you
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

sofossils
Member
Member
Posts: 61
Joined: September 28th, 2011, 5:05 pm
Division: Grad
State: PA

Re: Rocks & Minerals B/C ID/Question Marathon

Postby sofossils » February 24th, 2014, 3:54 pm

You are all right, but wufactor got it first. Your turn!
Assistant Coach of AHSO
Yale University '21


Return to “2014 Question Marathons”

Who is online

Users browsing this forum: No registered users and 1 guest