Rocks and Minerals B/C

User avatar
Magikarpmaster629
Exalted Member
Exalted Member
Posts: 578
Joined: October 7th, 2014, 3:03 pm
Division: Grad
State: MA
Location: No idea, but I can tell you exactly how fast I'm going

Re: Rocks and Minerals B/C

Postby Magikarpmaster629 » April 20th, 2017, 6:04 pm

Any advice distinguishing diatomite from chalk? I don't have a Rocks & Min box to practice with, so I'm afraid I'm a bit rusty in physical identification.
They give different streaks, although I forgot which one was which...
Ladue Science Olympiad (2014ish-2017)

A wild goose flies over a pond, leaving behind a voice in the wind.
A man passes through this world, leaving behind a name.

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 » April 20th, 2017, 6:12 pm

Any advice distinguishing diatomite from chalk? I don't have a Rocks & Min box to practice with, so I'm afraid I'm a bit rusty in physical identification.
They give different streaks, although I forgot which one was which...
Well, doesn't Chalk (limestone, containing carbonates) effervesce? Diatomite doesn't effervesce, at least. Also, Diatomite is lighter than Chalk (diatoms).

User avatar
Magikarpmaster629
Exalted Member
Exalted Member
Posts: 578
Joined: October 7th, 2014, 3:03 pm
Division: Grad
State: MA
Location: No idea, but I can tell you exactly how fast I'm going

Re: Rocks and Minerals B/C

Postby Magikarpmaster629 » April 20th, 2017, 6:13 pm

Any advice distinguishing diatomite from chalk? I don't have a Rocks & Min box to practice with, so I'm afraid I'm a bit rusty in physical identification.
They give different streaks, although I forgot which one was which...
Well, doesn't Chalk (limestone, containing carbonates) effervesce? Diatomite doesn't effervesce, at least. Also, Diatomite is lighter than Chalk (diatoms).
If you're given HCl tests, which is certainly not always. But yes, that would work.
Ladue Science Olympiad (2014ish-2017)

A wild goose flies over a pond, leaving behind a voice in the wind.
A man passes through this world, leaving behind a name.

User avatar
bhavjain
Member
Member
Posts: 153
Joined: February 20th, 2015, 7:30 pm
Division: C
State: PA

Re: Rocks and Minerals B/C

Postby bhavjain » April 20th, 2017, 8:54 pm

What famous formations should we know? (ex. Giant's Causeway)
2017 Science Olympiad - (Invites TBD/Reg/State/Nats) - Division C

Anatomy: (-/-/-/-)
Astronomy: (-/-/-/-)
Disease Detectives: (-/-/-/-)
Ecology: (-/-/-/-)
Microbe Mission: (-/-/-/-)
Remote Sensing: (-/-/-/-)
Rocks & Minerals: (-/-/-/-)
Towers: (-/-/-/-)

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 » May 4th, 2017, 3:41 pm

What famous formations should we know? (ex. Giant's Causeway)
You don't need to know them specifically, but you should include info for formations and such in a page for that rock/mineral that the formation is related to. For example, since the Giant's Causeway is made of basalt, in your Basalt section, you should put a picture and a bit of info on the Giant's Causeway.


Return to “2017 Study Events”

Who is online

Users browsing this forum: No registered users and 1 guest