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Re: Rocks and Minerals B/C

Posted: February 8th, 2017, 4:35 pm
by CVMSAvalacheStudent
If Bauxite a rock, why is it in the minerals section?
Good Question. I don't know, to tell the truth. If I remember correctly, Bauxite is a rock (some webs classify it as a minerals so rip), but (correct me if I'm wrong), it refers to a group of rocks with a similar composition. I dunno, hope someone else knows.
*group of minerals
Thanks, but what are the minerals that make up Bauxite?

Re: Rocks and Minerals B/C

Posted: February 14th, 2017, 6:34 pm
by Clematis

Good Question. I don't know, to tell the truth. If I remember correctly, Bauxite is a rock (some webs classify it as a minerals so rip), but (correct me if I'm wrong), it refers to a group of rocks with a similar composition. I dunno, hope someone else knows.
*group of minerals
Thanks, but what are the minerals that make up Bauxite?
The sources I've used say that there are a couple (pretty sure it's 3) minerals that are too hard to distinguish unless you know the chemical composition. They are collectively known as Bauxite. I don't know the names of them off the top of my head, though, sorry.

Re: Rocks and Minerals B/C

Posted: February 16th, 2017, 5:59 pm
by CVMSAvalacheStudent
*group of minerals
Thanks, but what are the minerals that make up Bauxite?
The sources I've used say that there are a couple (pretty sure it's 3) minerals that are too hard to distinguish unless you know the chemical composition. They are collectively known as Bauxite. I don't know the names of them off the top of my head, though, sorry.
Thanks though

Re: Rocks and Minerals B/C

Posted: March 5th, 2017, 8:07 pm
by pb5754[]
the mineral list includes crystal (quartz variety), i searched online and found nothing and i checked a field guide and found nothing again. can someone plz help. i do not understand what they mean by crystal.

plz help i have states in two days... :?

Re: Rocks and Minerals B/C

Posted: March 5th, 2017, 9:46 pm
by chick-fil-a for life
the mineral list includes crystal (quartz variety), i searched online and found nothing and i checked a field guide and found nothing again. can someone plz help. i do not understand what they mean by crystal.

plz help i have states in two days... :?
Crystal quartz is essentially the normal clear form with no impurities.

Re: Rocks and Minerals B/C

Posted: March 6th, 2017, 3:41 am
by pb5754[]
the mineral list includes crystal (quartz variety), i searched online and found nothing and i checked a field guide and found nothing again. can someone plz help. i do not understand what they mean by crystal.

plz help i have states in two days... :?
Crystal quartz is essentially the normal clear form with no impurities.
thanks a lot!!! :) :) :) :)

Re: Rocks and Minerals B/C

Posted: March 6th, 2017, 2:38 pm
by nicksalanitri
I was just wondering how people in the rest of the country are doing with rocks? What are some of scores you all have been getting? I got a 123.5/127 on the regional and I want to know how that compares.

Re: Rocks and Minerals B/C

Posted: March 6th, 2017, 6:57 pm
by nicksalanitri
First time doing this event. About how much of the information should you be able to know off the top of your head?
How to identify everything on the list and a little about them. Also understand basic earth science level concepts about rocks and minerals. The rest you can have in your binder or continue to memorize. Good luck!

Re: Rocks and Minerals B/C

Posted: March 6th, 2017, 7:14 pm
by driedmango
I was just wondering how people in the rest of the country are doing with rocks? What are some of scores you all have been getting? I got a 123.5/127 on the regional and I want to know how that compares.
What region are you from? That score is insanely good. I hardly ever get over 60 or 70% on tests at invitationals.

Re: Rocks and Minerals B/C

Posted: March 7th, 2017, 7:16 am
by AlbatrossTree
Scores like that seem to be relatively common at Ohio invites