Thunderegg

Object/Artifact

-

Crater Rock Museum

Name/Title

Thunderegg

Entry/Object ID

2010.1.34

Description

Chemical Composition: SiO2 Crystal System: Hexagonal System Description: Common Name: Agate Chemistry: SiO2 , Silicon dioxide Class: Silicates Location: Priday Red Bed, Richardson Ranch, OR Description: Large, thick slab with polished face. Light and dark creamy brown with spots of various sizes, colored in brown, beige, and gray with some banding on outer regions. A large, translucent black and reddish-brown spot in the center region. There is a hollow cavity with a dull-white and blue-gray center.

Collection

RAGM Mineral Collection

Acquisition

Accession

2009.62

Source or Donor

Museum Collection of Minerals

Acquisition Method

Donation

Dimensions

Width

8-1/2 in

Depth

1-3/4 in

Length

11-1/2 in

Location

Location

Shelf

FS-13-A

Room

Frieda Smith Hall

Building

Crater Rock Museum

Category

Exhibit

Moved By

Jillian Mather Kettley

Date

June 17, 2025

Notes

location added while cleaning

Location

Shelf

Right

Cabinet

Case# 116

Building

Frieda Smith Hall

Category

Permanent