Stichtite is a mineral, a carbonate of chromium and magnesium; formula Mg

Magnesium

Magnesium is a chemical element with the symbol Mg, atomic number 12, and common oxidation number +2. It is an alkaline earth metal and the eighth most abundant element in the Earth's crust and ninth in the known universe as a whole...

₆Cr

Chromium

Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable...

₂C

Carbon

Carbon is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds...

O

Oxygen

Oxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...

₃(OH

Hydrogen

Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of , hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe's chemical elemental mass. Stars in the main sequence are mainly...

)₁₆·4H₂O

Water

Water is a chemical substance with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state . Water also exists in a...

. Its colour ranges from pink through lilac to a rich purple colour. It is formed as an alteration product from chromium

Chromium

Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable...

 containing serpentine.

Discovered in 1910 in Western Tasmania, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, it was first recognised by A.S. Wesley a former chief chemist with the Mount Lyell Mining and Railway Company

Mount Lyell Mining and Railway Company

Mount Lyell Mining and Railway Company was a Tasmanian mining company formed on the 29 March 1893, most commonly referred to as Mount Lyell. Mount Lyell was the dominant copper mining company of the West Coast from 1893 to 1994, and was based in Queenstown, Tasmania.Following consolidation of...

, it was named after Robert Carl Sticht

Robert Carl Sticht

Robert Carl Sticht was an American metallurgist and copper mine manager, active in Colorado and Montana, U.S.A. and in Tasmania, Australia...

 the manager of the mine

It was observed near the Adelaide Mine, Dundas - east of Zeehan

Zeehan, Tasmania

Zeehan is a town on the west coast of Tasmania, Australia. It lies southwest of Burnie. At the 2006 census, Zeehan had a population of 845. It is part of the Municipality of West Coast....

, as well as on the southern shore of Macquarie Harbour

Macquarie Harbour

Macquarie Harbour is a large, shallow, but navigable by shallow draft vessels inlet on the West Coast of Tasmania, Australia.-History:James Kelly wrote in his narrative "First Discovery of Port Davey and Macquarie Harbour" how he sailed from Hobart in a small open five-oared whaleboat to discover...

. It is exhibited in the West Coast Pioneers Museum in Zeehan.

External links

• http://www.asap.unimelb.edu.au/bsparcs/biogs/P002619b.htm Sticht, Robert Carl - Bright Sparcs Biographical entry