Crystal Crag's namesake-...

Crystal Crag's namesake- fatty piece of quartz atop the crystal section on the North Arete- 31 July, 2004

Comments

Post a Comment
Viewing: 1-3 of 3
chskier

chskier - Aug 5, 2004 12:28 am - Voted 10/10

Geology

Wow. I'm not an expert on the geology of that area but this image sure makes it look like this stone is calcium carbonate or crystalized calcium, i.e., marble. There are quite a few white marble deposites through out the Sierra Nevada but I can't say that I have ever heard that Crystal Crag is one of them. Is this thing really quartz?

gordonye

gordonye - Aug 10, 2004 6:40 pm - Voted 10/10

Re: Geology

Quartzite can look similar to white marble but it's usually harder and more translucent. This rock on Crystal Crag is quartzite, not marble.

Diggler

Diggler - Aug 12, 2004 9:32 pm - Hasn't voted

Re: Geology

Sure thing, JD- thought I'd give people a preview of one of the cool things on this route!

Viewing: 1-3 of 3