Analcime

Object/Artifact

-

Crater Rock Museum

Analcime

Analcime

Name/Title

Analcime

Entry/Object ID

2014.1.65

Description

Chemical Composition: Al(OH)3 Crystal System: Hexagonal System Description: Common Name: Analcime Chemistry: NaAlSi2O6-H2O Group: Silicates Location: West Patterson, New Jersey Description: Small specimen with protruded white crystals. Physical Charateristics: Color is clear, white or gray, with greenish, yellowish and reddish tints possible. Luster is vitreous. • Transparency: crystals are transparent to translucent. • Crystal System is isometric; 4/m bar 3 2/m • Crystal Habits include the characteristic trapezohedron as well as the rare cube modified by trapezohedral faces. Also granular and massive. • Cleavage is absent. • Fracture is uneven. • Hardness is 5 - 5.5. • Specific Gravity is approximately 3.2 (average) • Streak is white. • Associated Minerals are quartz, calcite, serandite, apophyllite, natrolite, stilbite, heulandite and other zeolites. • Notable Occurrences include Mont St. Hilaire, Quebec; Iceland; several localities in Oregon, Colorado and New Jersey, USA; Nova Scotia and Switzerland. • Best Field Indicators are crystal habit, density, low hardness, luster and 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

2-1/4 in

Width

1-3/8 in

Length

2-1/4 in

Location

Location

Display Case

FS-11

Room

Frieda Smith Hall

Building

Crater Rock Museum

Category

Permanent