Niobrara Chalk
![](/assets/images/timthumb/timthumb.php?1717521091&w=800&h=&src=/assets/images/collection/146/gr479.jpg)
Contact The Charleston Museum for image use and credit instructions.
Description:
A sample of Niobrara chalk that is an off-white hard rock collected from Morrison, Colorado.
- Site: CO; Jefferson Co.
- Site Number: NH68L
- Dimensions: H-2.5 W-4.6 D-6 cm
- Rock type: Sedimentary
- Formation: Niobrara Formation
- Collection: Geology Collection
- Object Name: Sedimentary Rock
- Object Id: GR479
- Search Terms