Thunderegg

Object/Artifact

-

Crater Rock Museum

Name/Title

Thunderegg

Entry/Object ID

78.60.142

Description

Chemical Composition: SiO2 Crystal System: Triclinic System Description: Common Name: Agate Chemistry: SiO2 , Silicon dioxide Class: Class: Silicates Location: Freida Beds, Maupin, OR Description: (Delmar) Thunderegg. Cut side shows open hole containing large calcite crystals (tans), surrounded by fortified agate in blue grays, with bedding lines at one side (in white and gray). Other calcite chunks seen in fortified area. Surrounding rock is in red, gray, and orange. A fortified agate spot is seen here. Infiltration hole present.

Collection

Delmar Smith Mineral Collection

Acquisition

Accession

78.59

Source or Donor

Delmar Smith Agate Collection

Acquisition Method

Gift

Dimensions

Height

6-5/16 in

Width

2-7/8 in

Length

3-5/8 in

Location

Location

* Untyped Location

Mentzer Hall, MH-12

Category

Permanent

Moved By

Ray Blohm

Date

January 4, 2012