Rocks and Minerals B/C

Test your knowledge of various Science Olympiad events.
User avatar
dxu46
Exalted Member
Exalted Member
Posts: 798
Joined: April 11th, 2017, 6:55 pm
Division: C
State: MO

Rocks and Minerals B/C

Postby dxu46 » September 5th, 2017, 4:26 pm

Welcome to the 2018 Rocks and minerals Question Marathon!

Short event description: Participants will demonstrate their knowledge of rocks and minerals.
[img]https://www.google.com/imgres?imgurl=https%3A%2F%2Fwww.mindat.org%2Fimagecache%2Fbb%2Ff7%2F06678550014946250612180.jpg&imgrefurl=https%3A%2F%2Fwww.mindat.org%2Fmin-3727.html&docid=gf0ujO8o8WSwPM&tbnid=pNBBsUesdr_VcM%3A&vet=10ahUKEwjwlZKLlo_WAhWIRiYKHR_1A_cQMwiYASgAMAA..i&w=460&h=508&safe=active&bih=603&biw=1280&q=sphalerite&ved=0ahUKEwjwlZKLlo_WAhWIRiYKHR_1A_cQMwiYASgAMAA&iact=mrc&uact=8[/img]

[img]https://www.google.com/imgres?imgurl=http%3A%2F%2Fwww.mine-engineer.com%2Fmining%2Fmineral%2FSphalerite-small.jpg&imgrefurl=http%3A%2F%2Fwww.mine-engineer.com%2Fmining%2Fmineral%2Fsphalerite.htm&docid=NH_8soBXCuxDdM&tbnid=tMyDhQSygNiyIM%3A&vet=10ahUKEwj7sNXBlo_WAhWGwiYKHfsyAWY4ZBAzCAYoBDAE..i&w=900&h=780&safe=active&bih=603&biw=1280&q=sphalerite&ved=0ahUKEwj7sNXBlo_WAhWGwiYKHfsyAWY4ZBAzCAYoBDAE&iact=mrc&uact=8[/img]

Both specimens are the same mineral.

1.  What is this mineral?
2.  What is the hardness of this mineral?
3.  Under shortwave UV light, what color will this mineral fluoresce?
4.  What is a common name that miners like to call this mineral?
5.  What is this mineral's main usage?

Sully0413
Member
Member
Posts: 9
Joined: January 16th, 2017, 7:42 pm

Re: Rocks and Minerals B/C

Postby Sully0413 » September 6th, 2017, 8:36 am

1. What is this mineral?
2. What is the hardness of this mineral?
3. Under shortwave UV light, what color will this mineral fluoresce?
4. What is a common name that miners like to call this mineral?
5. What is this mineral's main usage?
1. Sphalerite
2. 3.5-4
3. Orange
4. Black/Steel/Rosin Jack
5. Is it used as zinc ore?

User avatar
whythelongface
Exalted Member
Exalted Member
Posts: 326
Joined: March 12th, 2017, 7:42 pm
Division: Grad
State: NJ
Location: 705 kilometers overhead

Re: Rocks and Minerals B/C

Postby whythelongface » September 6th, 2017, 12:48 pm

I cannot see the picture for some reason...
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!

User avatar
dxu46
Exalted Member
Exalted Member
Posts: 798
Joined: April 11th, 2017, 6:55 pm
Division: C
State: MO

Re: Rocks and Minerals B/C

Postby dxu46 » September 6th, 2017, 1:45 pm

1. What is this mineral?
2. What is the hardness of this mineral?
3. Under shortwave UV light, what color will this mineral fluoresce?
4. What is a common name that miners like to call this mineral?
5. What is this mineral's main usage?
1. Sphalerite
2. 3.5-4
3. Orange
4. Black/Steel/Rosin Jack
5. Is it used as zinc ore?
Correct, your turn!

Sully0413
Member
Member
Posts: 9
Joined: January 16th, 2017, 7:42 pm

Re: Rocks and Minerals B/C

Postby Sully0413 » September 6th, 2017, 6:28 pm

[img]https://i.pinimg.com/originals/ce/7c/b6/ce7cb6aee4108c4a03be08743ea9fa91.jpg[/img]
1. What mineral is this?
2. What are the sets of intersecting crystals called?
3. What is this mineral's hardness?
4. Where does this mineral normally form?
5. What crystal system does this mineral belong to?
6. What is a common name for this mineral?

User avatar
whythelongface
Exalted Member
Exalted Member
Posts: 326
Joined: March 12th, 2017, 7:42 pm
Division: Grad
State: NJ
Location: 705 kilometers overhead

Re: Rocks and Minerals B/C

Postby whythelongface » September 6th, 2017, 7:26 pm

[img]https://i.pinimg.com/originals/ce/7c/b6/ce7cb6aee4108c4a03be08743ea9fa91.jpg[/img]
1. What mineral is this?
2. What are the sets of intersecting crystals called?
3. What is this mineral's hardness?
4. Where does this mineral normally form?
5. What crystal system does this mineral belong to?
6. What is a common name for this mineral?
1. Staurolite
2. Cruciform twins
3. 7-7.5 on the Mohs scale
4. Metamorphic rock of medium to high metamorphic grade
5. Monoclinic
6. Fairy cross
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!

Sully0413
Member
Member
Posts: 9
Joined: January 16th, 2017, 7:42 pm

Re: Rocks and Minerals B/C

Postby Sully0413 » September 6th, 2017, 9:04 pm

Correct! :)

Your turn.

User avatar
whythelongface
Exalted Member
Exalted Member
Posts: 326
Joined: March 12th, 2017, 7:42 pm
Division: Grad
State: NJ
Location: 705 kilometers overhead

Re: Rocks and Minerals B/C

Postby whythelongface » September 7th, 2017, 12:40 pm

[img]http://www.healingcrystalshealingstones.com/images3/Albitehealingcrystals.jpg[/img]
1. What is the chemical formula for this mineral?
2. What is this specific variety of this mineral called?
3. What kind of cleavage does this mineral display?
4. Name two minerals this mineral commonly occurs in conjunction with.
5. Name one use this mineral has in industry
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!

User avatar
dxu46
Exalted Member
Exalted Member
Posts: 798
Joined: April 11th, 2017, 6:55 pm
Division: C
State: MO

Re: Rocks and Minerals B/C

Postby dxu46 » September 7th, 2017, 1:57 pm

[img]http://www.healingcrystalshealingstones.com/images3/Albitehealingcrystals.jpg[/img]
1. What is the chemical formula for this mineral?
2. What is this specific variety of this mineral called?
3. What kind of cleavage does this mineral display?
4. Name two minerals this mineral commonly occurs in conjunction with.
5. Name one use this mineral has in industry
1. NaAlSi3O8
2. Albite (plagioclase group/albite-anorthite series)
3. Tabular
4. (groups) K-spar and quartz
5. Useful in the manufacturing of ceramics

User avatar
whythelongface
Exalted Member
Exalted Member
Posts: 326
Joined: March 12th, 2017, 7:42 pm
Division: Grad
State: NJ
Location: 705 kilometers overhead

Re: Rocks and Minerals B/C

Postby whythelongface » September 7th, 2017, 3:41 pm

[img]http://www.healingcrystalshealingstones.com/images3/Albitehealingcrystals.jpg[/img]
1. What is the chemical formula for this mineral?
2. What is this specific variety of this mineral called?
3. What kind of cleavage does this mineral display?
4. Name two minerals this mineral commonly occurs in conjunction with.
5. Name one use this mineral has in industry
1. NaAlSi3O8
2. Albite (plagioclase group/albite-anorthite series)
3. Tabular
4. (groups) K-spar and quartz
5. Useful in the manufacturing of ceramics
4/5. I was looking for "perfect, good, imperfect" for cleavage, or, if you are really savvy with 3D coordinates, "Perfect on [001], good on [010], imperfect on {110}" as defined by http://www.mindat.org, I believe that "tabular" is more of the habit shown here. Very good!

Your turn.
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!


Return to “2018 Question Marathons”

Who is online

Users browsing this forum: No registered users and 1 guest