	*Dietrich, R. V. (1970) Minerals of Virginia. Research Division Bulletin* 47. Virginia Polytechnic Institute**	Report (issue)
	the cover—Turquois crystals from Lynch Station, Virginia; x ca.; pho tograph by Neal Ycdlin; color plates...C. A. Michael. COLD NUGGET FROM SPOTSYLVANIA COUNTY: Longest dimension approximately 13 cm., photograph...of Virginia R. V. DIETRICH* Professor of Geology and Associate Dean of Arts & Sciences, Virginia Polytechnic...Polytechnic Institute Research Division Bulletin 47 Virginia Polytechnic Institute, Blacksburg, Va. 24061 ... © R. V. Dietrich and the Research Division of Virginia* Polytechnic Institute, 1970 Printed and bound
	*(1988) Studies of the early Mesozoic Basins of the Eastern United States. Bulletin* Vol. 1776. US Geological Survey doi:10.3133/b1776**	Report (volume)
	aspects of the geology of the Culpeper basin of Virginia. The editors are grateful to the authors, technical...and Deep Run basins in the eastern Piedmont of Virginia 40 By Eleanora I. Robbins and Robert E. Weems...characteristics of Mesozoic basalts, Culpeper basin, Virginia lOS By Richard P. Tollo Reinterpretation of the...Mesozoic intrusive rocks in the Culpeper basin, Virginia and Maryland 151 By Albert J. Froelich and David...early Mesozoic diabase sheets, Culpeper basin, Virginia 16S By Paul C. Ragland and Jonathan D. Arthur
	*(1966) Lexicon of geologic names of the United States for 1936-1960. Bulletin* Vol. 1200. US Geological Survey doi:10.3133/b1200**	Report (volume)
	Thickness ranges from about 2 to 15 feet. Underlies Church limestone member; overlies Bachelor Creek limestone...Bull. 1060-D, p. 193, 252-253, pl. 7. In Nemaha County, Kans., member is basal unit of Howard limestone...Underlies Church limestone member. Named for Aarde farm, sec. 4, T. 26 S., R. 11 E., Greenwood County. Aaron...and central southern Virginia. Original reference: F. B. Laney, 1917, Virginia Geol. Survey Bull. 14...14, p. 15, 19-27, map. J. L. Calver, 1960, Virginia Div. Mineral Resources Bull. 75, p. 17. In Pittsylvania
	*(1938) Lexicon of geologic names of the United States (including Alaska) Bulletin* Vol. 896. US Geological Survey doi:10.3133/b896**	Report (volume)
	5 in., inch or inches. Circ., Circular. Co., County or Company. Indus., Industrial. Inst., Institute...limestone. Coop., Cooperative. lss., limestones. cor., corner. loc., locality. Conn., Council. Lye., Lyceum....northern area Severy sh. extends up to base of Church Is. Named for Aarde farm, sec. 4, T. 26 S., R.... Aaron slate. Pre-Cambrian : Central southern Virginia arid central northern North Carolina (Virgilina...gabbro. , Pre-Cambrian : Central southern Virginia (Mecklenburg County). F. B. Laney, 1917 (Va. Geol. Surv

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Agate from Mt. Zion Church, Gilberts Corner, Loudoun County, Virginia, USA

Agate from
Mt. Zion Church, Gilberts Corner, Loudoun County, Virginia, USA