Titanite

Object/Artifact

-

Crater Rock Museum

Name/Title

Titanite

Entry/Object ID

2009.62.233

Description

Chemical Composition: Silicates Crystal System: Monoclinic System Description: Common Name: Titanite Chemistry: CaTiSiO5 Class: Silicates Subclass: Nesosilicates Location: Fazenda Rubin Pimenta Mine, Minas Gerais, Brazil Description: There are two specimens. Both are green with yellowish coloring throughout. Physical Characteristics: •Color is green, yellow, white, brown or black. •Luster is adamantine. •Transparency: Crystals are transparent to translucent. •Crystal System: Monoclinic; 2/m •Crystal Habits include elongated wedges that form tabular or platy crystals. Some crystals are not so elongated and can have a trigonal appearance similar to a flattened rhombohedron. Twinning is common and produces a twin that is shaped like a deflatted, caved-in football, only with flatter surfaces. •Cleavage is indistinct in two directions •Fracture is conchoidal •Hardness is 5 - 5.5 •Specific Gravity is 3.3 - 3.6 •Streak is white. •Associated Minerals are chlorite, anatase, calcite, quartz, zircon and feldspars. •Other Characteristics: Pleochroic if strongly colored. •Notable Occurances include Gilget, Pakistan; Mt Vesuvius, Italy; Kola Penn., Russia; Ontario, Canada and New York and California, USA. •Best Field Indicators are crystal habit, luster, hardness, twinning if present and color. Fracture: Conchoidal Hardness: 5 Apatite Luster: Pearly Rock Type: Sedimentary Specific Gravity: 3.3-3.6 Streak: White

Collection

RAGM Mineral Collection

Dimensions

Width

3 in

Depth

1 in

Length

4 in

Location

Location

Display Case

DS-10

Room

Delmar Smith Hall

Building

Crater Rock Museum

Category

Exhibit

Moved By

Ian C.

Date

January 22, 2025

Notes

World case installation

Location

Display Case

FS-4

Room

Frieda Smith Hall

Building

Crater Rock Museum

Category

Permanent

Date

August 18, 2023