Wavellite

Object/Artifact

-

Crater Rock Museum

Name/Title

Wavellite

Entry/Object ID

2014.1.63

Description

Chemical Composition: Al(OH)3 Crystal System: Hexagonal System Description: Common Name: Wavellite Chemistry: Al3(PO4)2(OH)3-(H2O)5 Group: Phosphates Location: Hot Springs, Arkansas Description: Small specimen with a light green and yellow circular crystals showing spraying. Physical Characteristics: Color is characteristically green but also white, colorless, yellow and brown. • Luster is vitreous. • Transparency crystals are transparent to translucent. • Crystal System is orthorhombic; 2/m 2/m 2/m • Crystal Habit is almost exclusively radiating acicular crystals forming globules or botryoidal masses. • Cleavage is perfect in two directions. Fracture is uneven. • Hardness is 3.5 - 4. • Specific Gravity is approximately 2.3+ (light even for translucent minerals) • Streak is white. • Associated Minerals are quartz, micas, turquoise and limonite. • Other Characteristics: surface of globules often have minute crystals giving off tiny sparkles. • Notable Occurrences include Arkansas and Pennsylvania, USA; Bolivia and England. • Best Field Indicators are crystal habit, green color and softness 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 in

Width

1-3/4 in

Length

2-1/4 in

Location

Location

Display Case

FS-11

Room

Frieda Smith Hall

Building

Crater Rock Museum

Category

Permanent

Moved By

Curtis Gardner

Date

July 21, 2023