Petrified Wood

Object/Artifact

-

Crater Rock Museum

Name/Title

Petrified Wood

Entry/Object ID

05.58.212

Description

Assemblage Zone: sedimentary Chemical Composition: Si O2 Crystal System: Hexagonal Description: Family: Taxodism Genus: Sequoia Common name: Sequoia Age: Oligocene Location data: Rogers Mtn, Scio, OR Description: Petrified wood. Chunk cut on three different planes. Tan outside; faces are yellow, tan, cream, and golden-tan. Type of Fossils Present: Plants Grain Size: Fine Hardness: 7 Quartz Lithofacies: flood basalts Luster: Glassy Occurrence: Silicified wood, which is the fossilization and opalization of organic woody matter by the deposation of SiO2 in a anaerobic environment to prevent decay. This means that the wood must somehow be buried in an oxygen free enviroment, possibly in the silt-laden river or the bottom of a lake or buried by volcanic ash. Pressure: Low-Moderate Rock Color: Medium Rock Origin: Terrestrial Rock Type: Sedimentary Specific Gravity: 2.6 Surface Process: Not apparent Temperature: Low Texture: microcrystalline Variety: Petrified woods here are hydrous microcrystalline variety of quartz that can be generally termed as chalcedony or opal.

Collection

Petrified Wood Collection

Acquisition

Accession

05.58.

Dimensions

Height

5-11/16 in

Width

3-11/16 in

Length

3-1/2 in

Dimension Notes

Dimensions taken at widest points

Location

Location

Shelf

CS-I-2

Room

Curation Storage

Building

Crater Rock Museum

Date

January 31, 2024

Location

* Untyped Location

RD-6

Category

Permanent

Moved By

Curtis Gardner

Date

May 25, 2023

Notes

Added current location

Location

Container

n/a

Drawer

2nd Shelf

Shelf

Right, Right

Building

Founders Room

Category

Permanent

Moved By

Ray Blohm

Date

January 4, 2012

Location

Container

n/a

Drawer

2nd Shelf

Shelf

Right

Cabinet

F2

Wall

West

Building

Founders Room

Category

Permanent