Manganese silicate

Description

A yellow-red, crystalline material that occurs in nature in the minerals rhodonite, manganjustite and tephroite. Manganese silicate is used as a red colorant in glass and ceramic glazes.

Synonyms and Related Terms

rhodonite, manganjustite; tephroite

Risks

• Toxic.
• Inhalation or ingestion of manganese can cause a nervous system disorder.
• NIH: Technical sheet

Physical and Chemical Properties

Insoluble in water

Composition	approx. MnSiO3
CAS	7759-00-4
Melting Point	1323 C
Density	3.48 g/ml

Resources and Citations

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

• The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5781