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You are here : Stone Home > Info Center > Stone Knowledge > Trade Classification of Stone Types - Limestone, Bluestone, Slate, and Schist

Trade Classification of Stone Types - Limestone, Bluestone, Slate, and Schist

Updated:2007-11-19 11:14:58
!@#0#@! !@#1#@!!@#2#@!!@#3#@!!@#4#@! !@#5#@! !@#6#@! !@#7#@! !@#8#@! !@#9#@! !@#10#@!!@#11#@!!@#12#@!4 Limestone!@#13#@!!@#14#@!!@#15#@!Sedimentary rock predominantly composed of classic sand-sized grains of calcite, fossils or shell fragments. !@#16#@!!@#17#@!Oolitic limestone: composed largely of spherical particles called oolites. !@#18#@!!@#19#@!Dolomitic limestone: sedimentary carbonate rock consisting largely of the mineral dolomite. !@#20#@!!@#21#@!Colors range from light grey, tan to light brown. !@#22#@!!@#23#@!Limestone supplied under ASTM C-568 Standard Specification for Limestone Dimension Stone shall conform the physical requirements indicated in the following table: !@#24#@!!@#25#@!!@#26#@!!@#27#@! !@#28#@! !@#29#@!

 



 

5 Bluestone

Fine grained metamorphic sandstone. Colors range from shades of blues, grays, greens, buffs and red with random surface colors of gun-metal, gold and brown.

6 Slate

Fine grained rock which splits easily along its cleavage. Colors are grey, black, purple, green, red, and brown.

7 Schist

A foliated metamorphic quartz-feldspar containing rock characterized by minerals such as mica or chlorite. Schist splits readily along the planes of foliation.


source: Building Stone Institute

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