Thunderegg

Object/Artifact

-

Crater Rock Museum

Name/Title

Thunderegg

Entry/Object ID

2009.62.432

Description

Chemical Composition: SiO2 Crystal System: Hexagonal System Description: Common Name: Agate Chemistry: SiO2 , Silicon dioxide Class: Silicates Location: Cottonwood Springs, Oregon Description: Thin slab with polished face. Brown, green, and blue-green spotted outer and interlaced throughout, and thick streaks of light to dark reddish-brown with some white and translucent smokey-brown areas present.

Collection

RAGM Mineral Collection

Acquisition

Accession

2009.62

Source or Donor

Museum Collection of Minerals

Acquisition Method

Donation

Dimensions

Width

5-1/4 in

Depth

1/2 in

Length

11-1/4 in

Location

Location

Shelf

CS-J-3

Room

Curation Storage

Building

Crater Rock Museum

Category

Storage

Moved By

Jillian Mather Kettley

Date

July 2, 2025

Notes

Location update

Location

* Untyped Location

DS-11

Room

Delmar Smith Hall

Building

Crater Rock Museum

Category

Permanent

Moved By

Curator

Date

April 28, 2023

Notes

Added current location while cleaning shelf