Bulletin - United States Geological Survey No.349
Bulletin - United States Geological Survey No.349
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The ore itself ranges from a few inches to a few feet in thickness, but may be pockety and the pockets may be several feet thick. The section of fire clay at Willard, Carter County, and at William T. Johnson's clay mine, west of Ashland, and Moore's section at Amanda furnace illustrate the thickness and associations of the ore and limestone.
The limonite ore occurring at the outcrop is usually brown or red, more commonly the latter, and in general dense and close grained.
The red ore is the mor...e valuable. The carbonate or unaltered ore is dense, close grained, and bluish or grayish in color, and therefore is known as the blue limestone or the gray limestone ore. Most of the furnaces used the limonite ore, as the furnace men were unable *.o produce a coarse-grained foundry iron from the carbonates. The Digitized by Google IRON ORES.
125 following analyses illustrate the character of both the limonitic and the sideritic phases of the limestone ore : Analyses of limestone ores of Kenova quadrangle.
What to read after Bulletin - United States Geological Survey No.349?
You can find similar books in the "Read Also" column, or choose other free books by Geological Survey Us to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The ore itself ranges from a few inches to a few feet in thickness, but may be pockety and the pockets may be several feet thick. The section of fire clay at Willard, Carter County, and at William T. Johnson's clay mine, west of Ashland, and Moore's section at Amanda furnace illustrate the thickness and associations of the ore and limestone.
The limonite ore occurring at the outcrop is usually brown or red, more commonly the latter, and in general dense and close grained.
The red ore is the mor...e valuable. The carbonate or unaltered ore is dense, close grained, and bluish or grayish in color, and therefore is known as the blue limestone or the gray limestone ore. Most of the furnaces used the limonite ore, as the furnace men were unable *.o produce a coarse-grained foundry iron from the carbonates. The Digitized by Google IRON ORES.
125 following analyses illustrate the character of both the limonitic and the sideritic phases of the limestone ore : Analyses of limestone ores of Kenova quadrangle.
What to read after Bulletin - United States Geological Survey No.349?
You can find similar books in the "Read Also" column, or choose other free books by Geological Survey Us to read onlineMoreLess
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