Name/Title
Thunderegg (double)Entry/Object ID
2010.1.28Description
Chemical Composition: SiO2
Crystal System: Hexagonal System
Description: Common Name: Agate
Chemistry: SiO2 , Silicon dioxide
Class: Silicates
Location: Dugway, Utah
Description: Large, rounded back with polished face. Two spheres with light and dark brown, with light banding on outer areas. A white to blue-gray star-shaped outer band with a hollow cavity with a translucent blue-gray crystalline structure in the center of both spheres.Collection
RAGM Mineral CollectionAcquisition
Accession
2009.62Source or Donor
Museum Collection of MineralsAcquisition Method
DonationDimensions
Width
10 inDepth
4-1/2 inLength
16 inLocation
Location
Shelf
FS-12-ARoom
Frieda Smith HallBuilding
Crater Rock MuseumCategory
ExhibitMoved By
Jillian Mather KettleyDate
June 17, 2025Notes
location updated while cleaningLocation
Shelf
LeftCabinet
Case# 114Building
Frieda Smith HallCategory
Permanent