WEBVTT

1
00:00:00.210 --> 00:00:03.620
- This one is from Kristen Glassner

2
00:00:03.620 --> 00:00:07.873
from Fillmore Middle School
in Fillmore, New York.

3
00:00:09.130 --> 00:00:11.330
What is the mineral composition of a cave?

4
00:00:11.330 --> 00:00:14.760
We have learned about calcite
and chemical weathering,

5
00:00:14.760 --> 00:00:16.833
is there calcite in this cave?

6
00:00:18.340 --> 00:00:23.040
- Yes, so part of the
formation here is dolomite,

7
00:00:23.040 --> 00:00:26.530
which is a calcium carbonate
formed with magnesium,

8
00:00:26.530 --> 00:00:29.000
but most of the cave is also limestone,

9
00:00:29.000 --> 00:00:31.650
which has calcium.

10
00:00:31.650 --> 00:00:35.060
There are some formations
that a form of aragonite,

11
00:00:35.060 --> 00:00:36.880
and you can also have gypsum in caves.

12
00:00:36.880 --> 00:00:38.750
So there are different kind of minerals

13
00:00:38.750 --> 00:00:40.450
that you can find in caves.

14
00:00:40.450 --> 00:00:43.763
In here, a lot of the
speleothems are calcite.