Galena

Object/Artifact

-

Crater Rock Museum

Name/Title

Galena

Entry/Object ID

2014.1.26

Description

Chemical Composition: Al(OH)3 Crystal System: Hexagonal System Description: Common Name: Limonite Chemistry: FeO(OH)nH2O Group: Oxides Location: Arizona Description: Small specimen with gray cubic crystals on a light brown matrix. Physical Charateristics: •Color is yellow, orange, reddish brown, brownish black. •Luster is earthy to dull. •Transparency is opaque. •Crystal System is undefined. •Crystal Habits include massive, layered, botryoidal and stalactitic. •Cleavage is absent. •Fracture is crumbly or earthy. •Hardness is variable 4 - 5.5 •Specific Gravity is variable at 2.9 to 4.3 (average to above average) •Streak is brownish yellow to yellow. •Associated Minerals include a large list of minerals particularly secondary deposit minerals. •Notable Occurrences include many iron mines around the world, especially nice specimens come from Europe, Mexico, Canada and northeastern USA. •Best Field Indicators are lack of crystal forms, lack of cleavage and streak. Hardness: 7 Quartz Rock Type: Sedimentary

Collection

RAGM Mineral Collection

Acquisition

Accession

2014.1

Source or Donor

Crater Rock Museum (unknown donors)

Acquisition Method

Gift

Dimensions

Height

3-1/8 in

Width

1 in

Length

1-7/8 in

Location

Location

Shelf

CS-I-1

Room

Curation Storage

Building

Crater Rock Museum

Date

February 3, 2024

Location

Shelf

3rd shelf

Cabinet

Case# 20

Wall

West

Building

Freida Smith Hall

Category

Permanent