Salt Wood

Object/Artifact

-

Crater Rock Museum

Name/Title

Salt Wood

Entry/Object ID

78.58.260

Description

Assemblage Zone: sedimentary Chemical Composition: Si O2 Crystal System: Hexagonal Description: Family: Unknown Genus: Common name: Salt Wood Age: Tertiary Location data: Oregon Mehama Description: Thick slice of petrified wood with brown felt backing from Oregon. Polished side shows blond wood with some pink, with grey lines, and numerous cubic pseudomorph salt crystals which is very rare. Crystals are in grey. Size: 5.675"x 7.00"x .375" 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

78.58

Source or Donor

Delmar Smith Petrified Wood Collection

Acquisition Method

Donation

Other Names and Numbers

Other Number

Other Number: 78.58.260

Dimensions

Width

7 in

Depth

3/8 in

Length

5-11/16 in

Dimension Notes

Dimensions taken at widest points

Location

Location

Container

Left

Drawer

Bottom / Front Row

Shelf

Center

Cabinet

Case #108

Wall

North Wall

Building

Mentzer Hall - Petrified Wood Room

Category

Permanent