 | | 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 |  | | Report (issue) | | JL / Culpfeper and B arbour sville Basins, Virginia and Maryland C7 ll.S. / PAPER Triassic-Jurassic...Stratigraphy of the Culpeper and Barboursville Basins, Virginia and Maryland By K.Y. LEE and AJ. FROELICH U.S...stratigraphy of the Culpeper and Barboursville basins, Virginia and Maryland. (U.S. Geological Survey professional...Geology Culpeper Basin (Va. and Md.) 4. Geology Virginia Barboursville Basin. I. Froelich, A.J. (Albert............................................. 16 Leesburg Member....................................... |  | | Report (issue) | | ^ Anne Arundel County 43 Baltimore County 45 Howard County - Montgomery County 88 Prince Georges...Georges County Virginia 74 . 120 129 Arlington County 129 Fairfax County 131 Fauquier County 139...139 Loudoun County 143 Prince William County 149 Diabase quarries of northern Virginia 155 CAPTIONS...forming a ridge north of Route 7 near Dranesville, Virginia. Figure 7. Locations of mineral deposits in...mines in the Soldiers Delight region, Baltimore County, Maryland. Adapted from Pearre and Heyl , 19.60 |  | | Journal (issue) | | COMMONWEALTH OF VIRGINIA DEPARTMENT OF MINES, MINERALS AND ENERGY Richmond, Virginia Virginia Minerals Published...Division of Mineral Resources Charlottesville, Virginia 22903 VOL. 48 MAY/AUGUST 2002 NO. 2/3 A GUIDE...GEOLOGICAL DIVERSITY John Marr and Roy Sites Virginia has a very interesting and varied geologic history...in unique and exotic geologic terranes. Across Virginia, the landscape exhibits all rock types: igneous...the Division of Mineral Resources offices. 10 VIRGINIA DIVISION OF MINERAL RESOURCES VOL. 48 Figure |  | | Report (volume) | | Geology of the Waterford Quadrangle, Virginia and Maryland, and the Virginia Part of the Point of Rocks Quadrangle...Ridge province and Culpeper basin in northern Virginia and Maryland UNITED STATES GOVERNMENT PRINTING...Geology of the Waterford quadrangle, Virginia and Maryland, and the Virginia part of the Point of Rocks quadrangle...references. Supt. of Docs. no.: I 19.3:2095 l. Geology-Virginia. 2. Geology-Maryland. I. Burton, William C. (William............................................. .. Loudoun Formation .................................... |  | | Journal (article/letter/editorial) | | Bull Run Quarry Loudoun County, Virginia H O W A R D R. F R E E L A N D 10340 Hollyberry Drive Richmond...Richmond, Virginia 23234 Most collectors are familiar with fine prehnite, apophyl lite, and zeolite specimens...Narsavage, 1977), and at the Fairfax quarry near Centreville, Virginia (Medici, 1972; Mitchell, 1977). There...are several other "trap" quarries in northern Virginia which have yielded beautiful and sometimes rare...environments. Bull Run quarry located in Loudoun County, Virginia, is one such quarry. To date, nearly twenty |  | | Journal (article/letter/editorial) | | CONGLOMERATE NEAR CULPEPER,VIRGINIA RonBnr O. Broouon, (Jniaersity of Virginia. Stilbite has been collected...abandoned road quarry which was opened about 1920 on the southern edge of Culpeper, Virginia, near U. S....Stilbite aggregate slightly magnified, Culpeper Quarry, Virginia. glomerate, described by Roberts in 7928...7928.r The entire Triassic series of Virginia, as far as can be determined, is Keuper in age with the Border...composition in various parts of Virginia. In the vicinity of Leesburg, the pebbles and boulders are predominantly |  | | Report (issue) | | Color: Light green to white in aggregates; in thin section, colorless. Streak: White. Optical Class: Biaxial...n.d. X-ray Powder Pattern: Goose Creek quarry, Virginia, USA. 2.931 (10b), 4.06 (7b), 7.37 (6), 5.81...1.3 0.2 [11.8] [100.0] (1) Goose Creek quarry, Virginia, USA; by electron microprobe, H2 O by di®erence;...titanite, quartz, calcite. Distribution: In the Goose Creek quarry, Leesburg, Loudoun Co., and the Fairfax...Fairfax quarry, Centreville, Fairfax Co., Virginia, USA. Name: For the occurrence in Loudoun Co., Virginia |  | | Journal (article/letter/editorial) | | 1955 GEOLOGY OF CATOCTIN MOUNTAIN, MARYLAND AND VIRGINIA BY JOHN C. WHITAKER ABSTRACT Detailed mapping...of Catoctin Mountain in Maryland and northern Virginia indicates that the area is not a syncline as previously...revision of the stratigraphy. Strata mapped as Loudoun along the eastern border of Catoctin Mountain constitute...Cambrian-Precambrian boundary. .. 439 Introduction 456 Loudoun formation 441 Map pattern 457 General 441 Structure...Catoctin Mountain, Maryland and Virginia 435 2. Photomicrographs of Loudoun phyllite, Harpers phyllite, Tomstown |  | | Journal (issue) | | the Virginia Polytechnic Institute, Engineering Experiment Station Series, dealing with Virginia Mineral...Mineral Localities: Virginia Mineral Localities (1960 Edition) Virginia Mineral Localities (Supplement...(Supplement I) Virginia Mineral Localities (Supplement II) Virginia Minerals and Rocks (3rd Edition) Ex LIBRIS...\I i! II II BULLETIN OF THE ·, I !V I ii VIRGINIA POLYTECHNIC INSTITUTE Engineering Experiment Station...Series No. 151 Ii !I ·1 " ii :c H I I I I ! VIRGINIA MINERAL LOCALITIES ( SUPPLEMENT II ) By Richard |  | | Journal (article/letter/editorial) | | yellow, green, and pink to white and colorless; nodular datolite is typically white or pastel shades of pink...nodular masses; the term botryolite is applied to a white botryoidal variety from Arendal, Norway. Its name...alpine fissure veins. Associated minerals include calcite, quartz, prehnite, danburite, axinite, garnet,...stilbite, heulandite, pectolite, apophyllite, calcite,, and quartz, and its crystal aggregates often...localities such as the Cheapside quarry at Deerfield, Franklin County, where it occurred with prehnite |  | | Report (issue) | | Properties: Transparent to translucent. Color: White to gray, pink, yellowish, brownish, golden brown;...brown; colorless in thin section. Streak: White. Luster: Vitreous to pearly on cleavages. Optical Class:...Association: Zeolites, apophyllite, datolite, calcite, chlorite. Distribution: Relatively common. Well-crystallized...in the Khandivali quarry, near Bombay, Maharashtra, India, large crystals. In the USA, exceptional crystals...New Jersey; in the Goose Creek quarry, Leesburg, Loudoun Co., Virginia; on the Keweenaw Peninsula, Houghton |  | | Report (issue) | | translucent, rarely opaque. Color: Colorless or white, commonly with a greenish tinge; may be grayish...\hornblende" schists; from some ore veins. Association: Calcite, prehnite, zeolites, danburite, axinite, garnet...Primorskiy Kray, Russia. In the USA, large crystals from the Lane quarry, West¯eld, Hampden Co., Massachusetts;...Massachusetts; in the Roncari quarry, East Granby, Hartford Co., Connecticut; from Bergen Hill, Hudson Co...New Jersey; in the Goose Creek quarry, near Leesburg, Loudoun Co., Virginia. Very large crystals from Charcas |  | | Report (issue) | | Properties: Transparent to translucent. Color: Colorless, white, pale yellow. Luster: Vitreous to dull, greasy,...Association: Zeolites, apophyllite, analcime, calcite, gypsum, pyrite. Distribution: In the Bjelke mine...the USA, at Paterson and Great Notch, Passaic Co., New Jersey; in the Goose Creek quarry, Leesburg, Loudoun...Loudoun Co., and the Fairfax quarry, Centreville, Fairfax Co., Virginia; from Crestmore, Riverside Co...Concepci¶on del Oro, Zacatecas, Mexico. In the Basalt quarry, Prospect, New South Wales, Australia. A number |  | | Report (issue) | | Transparent to translucent, opaque. Color: Colorless to white, may be grayish, tan, yellowish, brownish, or pale...sediments; in some ore deposits. Association: calcite. Apophyllite, stilbite, laumontite, thomsonite...Prefecture; and Otemo, Niigata Prefecture. In the USA, from Fort Point, San Francisco Co., and in the New...Park, Wyoming; in the Goose Creek quarry, Leesburg, Loudoun Co., Virginia. From 40 km southwest of Cape Blomiden |  | | Journal (article/letter/editorial) | | the south side of lead-gray galena and grayish-white arCopperas Creek, about one mile west of senopyrite...senopyrite in Darien (Fairfield Co.), Levesque, Cross County, Arkansas. The Conn., for over a year. A few weeks...finding their source. It Mitchell, University of Virginia, from is a small quartz vein on the side of a...A H O — "This specimen was found in Twin Falls County about 10 miles south of Hagerman, Idaho. These...colorless, glassy analcite xls with tiny white cakite xls. The calcite xls fl. pale green under L.W. ILLINOIS |  | | Report (issue) | | precious-metal occurrences in the Culpeper basin, northern Virginia LEADERS: Joseph P. Smoot Gilpin R. Robinson... S. Geological Survey National Center Reston, Virginia 22092 U. S. Geological Survey Open-File Report...precious-metal occurrences in the Culpeper basin, northern Virginia LEADERS: Joseph P. Smoot and Gilpin R. Robinson...mineralization, Rt. 28, Sterling, Virginia. STOP 2. Hornfels, Rt. 661, Chantilly, Virginia. STOP 3. Culpeper Crushed...Stone Quarry, Stevensburg, Virginia STOP 4. Granophyre and ferrogabbro, Germanna Bridge, Virginia. STOP |  | | Report (volume) | | assachusetts, Connecticut, New jersey, Pennsylvania, Virginia , Maryland , North Carolina, and other Eastern...Massachusetts, Connecticut, New Jersey, Pennsylvania, Virginia, Maryland , North Carolina, and South Carolina...appropriate, the applicable early Mesozoic basin, State, county, or 7 1/2minute USGS topographic quadrangle covered...the State are cited. More than one basin, State, county, or quadrangle may appear for an entry. A State...C.-S.C.) Deep River (N.C.) Durham (N.C.) Davie County (N.C.) Dan River and Danville (N.C.-Va.) Scottsburg |  | | Journal (article/letter/editorial) | | MINERALS OF THE ARLINGTON TRAP ROCK QUARRY ON GOOSE CREEK, LOUDOUN CO., VA. By FRENCH MORGAN 2601 Brentwood...18, D. C. The writer first became aware of this quarry during the fall of 1943 when the newly organized...field trip to the locality It was an old producing quarry at that time, and has probably been in operation...considerable size. The quarry is located a mile and onehalf south of Virginia highway No. 7, at the Belmont...of Intrusive Triassic Diabase at Goose Creek, Loudoun Co., Va. (Proceedings of the U. S. National Museum |  | | Journal (article/letter/editorial) | | 29 January 2015 FRENCH CREEK IRON MINE, CHESTER COUNTY, PENNSYLVANIA M any minerals described in this...locality is the French Creek iron mine, Chester County, Pennsylvania, an occurrence worthy of consideration...chalcocite, bornite, pyrite, tetrahedrite, and even calcite pseudomorphs after chalcopyrite. Chalcopyrite is...example of chalcopyrite from French Creek, Chester County, Pennsylvania. The 10-cm-wide specimen has chalcopyrite...mines at Rossie, St. Lawrence County, at the Sterling mine, Jefferson County, and in very large crystals |  | | Journal (issue) | | 1983 No. 2 STRONTIUM MINERALS FROM WISE COUNTY, VIRGINIA - AN UPDATE 2 1 D. Allen Penick and Lynn...abundance in the area around East Stone Gap i n W i s e County, V i r ginia. Celestite is strontium sulfate (SrS04)...strontium o x i L . ~ l the l strontianite in W i s e County is probably calciostrontianite where calcium content...acicular crystals. Crystals are gene r a l l y white and often can be seen as small sprays attached to...areas in Virginia. These localities, a l l i n the Valley and Ridge Province, extend frcm Wise County i n |  | | Journal (article/letter/editorial) | | more. "The Glove Mine is located in Santa Cruz County, Arizona, near the little town of Amado, on the...later while looking I found a beautiful 15 point white diamond. I also met an old gentlemen that had worked...inches in length. They come from Mt. Antero, Chaffee County, Colorado (altitude of pocket where found over...inches in size, comes from Devil's Head, Douglas County, Colo. Microcline {feldspar). Nice loose xls, averaging...received. These come from Devil's Head, Douglas County, Colo. Garnet (spessartite). Small but gemmy, deep |  | | Journal (issue) | | I’ve only seen the lovely purplish hue. Northern Virginia Mineral Club members, Please join our June speaker...Towers), 3548 South Jefferson St. (intersecting Leesburg Pike), Falls Church, VA Phone: 703-671-7507 Reservations...are about equivalent, the mineral is gray or off white—something I’ve yet to see. I also learned more chemistry...Azzer, Morocco. Photo: Bob Cooke. with quartz, calcite, limonite, and the ores of more collectible minerals...for other minerals, are French Creek in Chester County, PA, and the Blackbird District in Idaho. Both |  | | Report (issue) | | Depositional Sequences of Northern and Central Virginia, by A. S. Furcon -----------------------·----...Sequatchie in the Chickamauga Limestone in Walker County, Georgia. In northwestern Georgia Butts and Gildersleeve...Formation in the Chickamauga Limestone in Dade County, Georgia. There, Croft (p. 8) divided the Chickamauga...established by Miller and Brosge (1954) in southwestern Virginia and mapped in the northwestern part of the Tennessee...Beekmantown (Kingsport-Mascot) of Tennessee and Virginia and the Cotter and Powell Limestones of Arkansas |  | | Journal (issue) | | February 1987 No.1 VIRGINIA MINERAL LOCALITY INDEX D. Allen Penick, Jr. This Virginia mineral locality...world-wide locality index The localities are listed by county, followed by a listing of the most prominent minerals...source of information in this Virginia index was Minerals of Virginia (1970) by R. V. Dietrich. Although...of the index. Some of the famous localities in Virginia, such Updated from Rocks and Minerals, Vol. 60...pegmatite in Amelia County and the Lynch Station locality (turquoise crystals) in Campbell County, are now closed |
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