Property, Plant and Equipment

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Note 9. Property, Plant and Equipment

The major categories of property, plant and equipment and accumulated depreciation and depletion are presented below:

	December 31,
	2014			2013
	(millions of dollars)
Mineral rights and reserves	$	575.9			39.6
Land		44.9			24.1
Buildings		198.2			145.7
Machinery and equipment		1,121.5			956.0
Furniture and fixtures and other		153.1			88.3
Construction in progress		80.6			28.6
		2,174.2			1,282.3
Less: accumulated depreciation and depletion		(992.1	)		(976.2	)
Property, plant and equipment, net	$	1,182.1		$	306.1

The increase in December 31, 2014 balance in the table above primarily relates to the assets acquired from the AMCOL businesses. Depreciation and depletion expense for the years ended December 31, 2014, 2013 and 2012 was $76.6 million, $44.7 million and $48.7 million, respectively.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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