brucite

Definitions

noun A native hydrate of magnesium, usually found in thin foliated plates, of a white or greenish color and pearly luster.
noun Same as chondrodite.

noun rare, rare A white, pearly mineral, occurring thin and foliated, like talc, and also fibrous; a native magnesium hydrate.
noun rare The mineral chondrodite.

Bruce +‎ -ite after its discoverer, American mineralogist Archibald Bruce.

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The valley's also rich in brucite, and there's at least some gold.

Susan and Sharon's Excellent Adventure
The valley's also rich in brucite, and there's at least some gold.

Archive 2008-06-01
In contact with solutions of mineral acids, organic acids, or magnesium complexing agents, the rate of dissolution of the brucite layers is increased.

Geology of asbestos
In the case of chrysotile, an octahedral brucite layer having the formula (Mg6O4 (OH) 4) -4 is intercalated between each silicate tetrahedra sheet.

Geology of asbestos
A native magnesia of New Jersey, it was named after him: “brucite.”

American Connections
In the case of chrysotile fibers (in a given amount of water), the brucite layer will, fairly rapidly, dissolve in part, with concomitant increase in the pH of the solution.

Geology of asbestos
Free brucite, present as contaminant in the fibers, also contributes to the pH increase.

Geology of asbestos
In the case of chrysotile, the crystalline structure is stable up to approximately 550° C (depending on the heating period), where the dehydroxylation of the brucite layer begins.

Geology of asbestos
The silicate and brucite layers share oxygen atoms which would normally be separated by distances of 0.305 nm in the silicate layer and 0.342 nm in the brucite layer.

Geology of asbestos
In the octahedral layer (brucite), magnesium can be substituted by several divalent ions, Fe+2, Mn +2, or Ni+2.

Geology of asbestos