RR-12

Title: RR-12
Description: Hand sample:
-Diabase
-Phaneritic crystals dominated by black mafic minerals
-Notable tan mineral, possibly quartz. Few crystals of biotite
-In thin section able to distinguish Calsic plag, pyroxenes, amphibolies, and biotite. Also low birefringence mineral without cleavage, possibly quartz
Location
-Ringing rocks boulder field, about half a kilometer from contact of the sill with country rock.
- Coordinates: 40 33 45N 75 71 45W
Significance
-This rock was a representative example of the boulder field and may help us determining if there are any textural or chemical differences between this sample and those closer and further from the contact.
Creator: Dustin Morris
Contributor: Emma Sosa
Identifier: RR-12
Mediator: Tamara Carley
Rights Holder: Lafayette College Department of Geology and Environmental Geosciences

Media: https://exhibits.lafayette.edu/geology/files/original/f3268ecbd378f328018d013c302e92e6.JPG; https://exhibits.lafayette.edu/geology/files/original/c0044015ff581610a45866268c231e80.JPG; https://exhibits.lafayette.edu/geology/files/original/a85f4efea6a493e76f6900c33511c55f.jpeg; https://exhibits.lafayette.edu/geology/files/original/4992481553329481d4e8d8494a482bea.jpeg; https://exhibits.lafayette.edu/geology/files/original/2a2fe5156cb8b5a4917ee6b446a7ee2d.jpeg; https://exhibits.lafayette.edu/geology/files/original/371a339ee1502f101662ba235bb00eb5.jpeg