pb5754[] wrote: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!!!
West Windsor-Plainsboro High School South '21
2021 Nationals: Astronomy - 1st, Geologic Mapping - 1st, Team - 6th
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.
-Groundhog- wrote: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!
nicksalanitri wrote: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.
nicksalanitri wrote: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.
Eastern Long Island, school is Gelinas, would you want some help?
CVMSAvalacheStudent wrote:
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
This is a common test question. Bauxite is a mineral group composed of Gibbsite, Boehmite, and Diaspore.