Uploaded on:
17/03/2009 00:03:44
Type:
Digital Asset
File Size:
221.25 KB
Dimensions:
1000 x 665 pixels
283 views 4 downloads
P number: P527751
Caption: Brucite marble from the Torran area, Skye, Invernessshire.
Description: The occurrence of brucite marble was first brought to the attention of the Geological Survey by Mr. Gordon S. Duncan though they were known two miles to the east from Cill Chriosd. This specimen was found only nine feet from the Beinn an Dubhaich granite. British Geological Survey Petrology Collection sample number MC 7528. The brucite marbles are near the contact with the granite of Beinn an Dubhaich in the vicinity of Cnoc Dubh. They are rarely pure usually containing forsterite (a variety of olivine) that often shows alteration to serpentine. The brucite normally occurs as rounded grains rarely exceeding 0.5 mm. in diameter and many are much smaller. Brucite marble if pure as a brucite-calcite rock, might be used instead of dolomite as a commercial refractory. In the Torran area however, supplies of the pure material are very small. Brucite marble occurs in the Cnoc Dubh area but it is always contaminated with forsterite.
Date taken: 25/06/1905
Photographer: Unknown
Copyright statement: Unknown
Orientation: Landscape
Size: 221.25 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Unsorted Images  

Reviews

There is currently no feedback