Plume Agate

Object/Artifact

-

Crater Rock Museum

Name/Title

Plume Agate

Entry/Object ID

1989.2.77

Description

Chemical Composition: SiO2 (MnO2) Crystal System: Triclinic System Description: Common Name: Quartz var.agate (plume) Chemistry: SiO2 Class: Silicates Location: Priday Bed, Madras, OR Description: Thin slab with polished face. Reddish-brown and olive green conglomerate on outer area, with a reddish-orange and black area to one side, with slight pink and beige plumes.

Collection

Lawrence Crocker

Acquisition

Accession

1989.2

Source or Donor

Lawrence Crocker

Acquisition Method

Gift

Dimensions

Width

2-3/8 in

Depth

1/4 in

Length

3-7/8 in

Location

Moved By

Jillian Mather Kettley, Steve Miller

Date

May 15, 2025

Notes

Location update