Kammererite

Object/Artifact

-

Crater Rock Museum

Name/Title

Kammererite

Entry/Object ID

2004.1.125

Description

Chemical Composition: (Fe, Mg)3Fe3AlSi3O10(OH)8 Crystal System: Monoclinic System Description: Common Name: Kammererite Group Name: Chlorite Chemistry: (Fe, Mg)3Fe3AlSi3O10(OH)8. CRYSTAL SYSTEM: Monoclinic Location: Erzon, Turkey Description: Small dark purple pointed crystals on top of a gray base. PHYSICAL CHARACTERISTICS: Mineral class Silicates : Phyllo silicates : Chlorite group Chemical formula (Mg,Fe,Cr)5Al(Si3Al)O10(OH)8 Crystal system Monoclinic Habitus Pseudohexagonal tabular crystals. Often as scaly or massive aggregates or as crusts. Cleavage Perfect basally, lamellar fracture. Hardness 2-3 Density 2.6-3.4 Color Pale to deep purple varying with the amount of chrome. Streak Luster Vitreous, dull or pearly. Description Kammererite is a very nice mineral in the collection. It shows a very distinctive color but crystals are rare. Mostly you only find it as massiv together with chromite. As all chlorites, flakes are flexible but not elastic, don't return to it's previous form. Occurance In chromium ores. Associates Chromite VARIETY OF: clinochlore a chlorite, (Fe, Mg)3Fe3AlSi3O10(OH)8 Iron Magnesium Aluminum Silicate Hydroxide. COLOR: Bright lavender to deep crimson red Hardness: 2 Gypsum Luster: Vitreous Specific Gravity: 2.6-3.4

Collection

Suomynona Mineral Collection

Acquisition

Accession

2004.1

Source or Donor

Suomynona Mineral Collection

Acquisition Method

Donation

Dimensions

Width

2 in

Depth

1 in

Length

2-1/2 in

Dimension Notes

Dimension taken at widest points

Location

Location

* Untyped Location

Mentzer Hall, MH-11

Category

Exhibit

Moved By

Jillian Mather Kettley

Date

September 11, 2025

Notes

Location added when performing inventory

Location

Wall

south

Room

Attic, Frieda Smith Hall

Building

Crater Rock Museum

Category

Permanent

Moved By

Lehman R.

Date

August 18, 2009