 | | Journal (article/letter/editorial) | | [CaSiO3], akermanite [Ca2MgSi2O7], and serpentine-group minerals. Rochester Mineralogical Symposium The...04237. The Crooker gem pegmatite, Newry, Oxford County, Maine, has been mined sporadically since 1930...occurrence in the United States at Mineville (Essex County). The mineral was identified in a sample collected...Polycrase-(Y) was described from Day pegmatite, Saratoga County. It occurs as small, dark greenish to brownblack...found near Long Lake, Hamilton County, and Trout Brook Valley, Essex County, in the Adirondacks. Chemical |  | | Journal (article/letter/editorial) | | 16 March 2015 JALGAON, MAHARASHTRA, INDIA APOPHYLLITE GROUP MINERALS are of particular interest to both...subject of this issue's Connoisseur's Choice is apophyllite, a mineral known in good specimens since the...the late eighteenth century. Until recently, apophyllite was considered to be a hydrated potassium-calcium...and Wilson 1978) has shown that "apophyllite" is best used as a group name for minerals in the fluora...described using the group name only), much of the outstanding Indian apophyllite has been identified |  | | Journal (article/letter/editorial) | | REVISIONS IN THE A POPHYLLITE GROUP: HYDROXYAPOPHYLLITE APOPHYLLITE FLUORAPOPHYLLITE by Pete J. Dunn...P.O. Box 783, Bowie, MD 20715 INTRODUCTION Apophyllite, KCa4Sis020(F,OH )'8H20, is a rather common mineral... The recent discovery of the (OH) analog of apophyllite (Dunn et al., 1977) has resulted in a revision...than hydroxyl. -for undetermined members of the group. This paper was written to acquaint the collector...on "apophyllite" specimens from specific and general localities. NOMENCLA TURE#ISTORY Apophyllite was |  | | Report (issue) | | Publishing, version 1.2 Crystal Data: Tetragonal. Point Group: 4=m 2=m 2=m: Crystals are equant or tabular on...= 1.536{1.542 ² = 1.537{1.543 Cell Data: Space Group: P 4=mnc: a = 8.978(3) c = 15.83(1) Z=2 X-ray...X-ray Powder Pattern: Je®erson, North Carolina, USA. 3.965 (100), 2.990 (67), 1.588 (26), 4.554 (23), 2.494...100.00 24.78 5.20 (1) Je®erson, North Carolina, USA; by electron microprobe, H2 O by the Pen¯eld method...datolite, pectolite, calcite. Distribution: In the USA, in the Ore Knob mine, Je®erson, Ashe Co., and the |  | | Report (issue) | | Publishing, version 1.2 Crystal Data: Tetragonal. Point Group: 4=m 2=m 2=m: Crystals tabular to prismatic, to...= 1.530{1.536 ² = 1.532{1.538 Cell Data: Space Group: P 4=mnc: a = 8.963(2) c = 15.804(2) Z=2 X-ray...5.19 (1) Phoenix mine, Keweenaw Co., Michigan, USA; corresponding to (K0:85 Na0:16 )§=1:01 Ca4:05 (Si7:83...Maharashtra. At Shauguang, Guangdong, China. In the USA, from French Creek, Chester Co., and Cornwall, Lebanon...Co., New Jersey; from the Fairfax quarry, Centreville, Fairfax Co., Virginia. Very large crystals from |  | Dunn, Pete J., Rouse, Roland C., Norberg, Julie A. (1978) Hydroxyapophyllite, a new mineral, and a redefinition of the apophyllite group I. Description, occurrences, and nomenclature. American Mineralogist, 63 (1-2) 196-198 | Journal (article/letter/editorial) | | a new mineral, and a redefinitionof the apophyllite group I. Description,occurrences, and nomenclature...Michigan Ann Arbor, Michigan 48109 Abstract Apophyllite, KCanSirOro(F,OH).8HrO, has been redefined in...type locality is the Ore Knob mine, Jefferson,Ashe County, North Carolina. Due to the similarity of their...previously proposed for fluorapophyllite from Centreville,Virginia, is shown on the basisof new chemical data...ANDJULIEA. NonsrRc Introduction Since much apophyllite forms in basaltic amygdules and is associatedwith |  | | Journal (article/letter/editorial) | | a new mineral, and a redefinitionof the apophyllite group I. Description,occurrences, and nomenclature...Michigan Ann Arbor, Michigan 48109 Abstract Apophyllite, KCanSirOro(F,OH).8HrO, has been redefined in...type locality is the Ore Knob mine, Jefferson,Ashe County, North Carolina. Due to the similarity of their...previously proposed for fluorapophyllite from Centreville,Virginia, is shown on the basisof new chemical data...ANDJULIEA. NonsrRc Introduction Since much apophyllite forms in basaltic amygdules and is associatedwith |  | | Journal (article/letter/editorial) | | Apophyllite group: effects of chemical substitutions on dehydration behaviour, recrystallization products...substitutions on thermally induced reactions in the apophyllite group have been investigated using T G A and DTA...cm- 1. KEVWORDS: apophyllite, fluorapophyllite, hydroxyapophyllite, ammonian apophyllite, dehydration, thermal... F. M A R R I N E R E T A L . Introduction APOPHYLLITE [KCa4SisO20F.8H20], a hydrous sheet-structured...there is some variation in the composition of apophyllite, particularly with regard to fluorine content |  | | Journal (issue) | | M. Pryce and J. Chester The Amity Area, Orange County, New Y o rk ............................... 85...Nomenclature Revisions in the Apophyllite Group: Hydroxyapophyllite, Apophyllite, andFluorapophyllite 95...used to bother me. I would be viewing a complex group of tourmaline crystals in a case at the Tucson show...com The Malachite Chickadee. Natural malachite group, untrimmed, 1 cm in length, collected in the Mindola...115-year-old Oriental mine in Alleghany, Sierra County, California. In August, about five months after |  | | Book | | Miguel Hortiguela, LPPO Illustrations: Crowle Art Group Printed in China The publisher gratefully acknowledges...ofjust a few minerals; quartz and the feldspar group are the most abundant processes — called biominerals...be minerals. Microcline, Crystal Peak, Colorado, USA * 12 x 9x 5 om MINERALS: PRODUCTS OF A CHANGING...zeolites. Calcite (septarian nodule), San Juan County, Utah, USA * 18 x 24x Bem 14 | MINERALS: PRODUCTS...The third type is crater, a striking circular basin 3.4 kilometers (2 miles) wide, is one iron-nickel |  | | Book | | United States by Bookcrafters, Fredericksburg, Virginia. PREFACE The end of 1994 marked the close of...Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN...Iron-manganese phosphates of the Williams pegmatites, Coosa County, Alabama (by P. B. Leavens & T. A. Simpson) 6:66-73...ALICE GLORY HOLE The Alice glory hole, Clear Creek County, Colorado (by T. A. Hanson & W. B. Craft) 18:185187...--and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE MYERS --and |  | | Book (edition) | | extensively rewritten by the book’s distinguished group of authors in the light of new research and important...Lincoln. Encyclopedia of minerals Sagiiache County Pu blic Library Saguache , Colorado DEMCO For...Photo Editor: Wendell E. Wilson Library Saguache County Public Saguache, Colorado VAN NOSTRAND REINHOLD...all varietal names, synonyms, spelling variants, group names, and so forth; only names in contemporary...contemporary use have been included. Most of the mineral group lists presented were taken from the Glossary of Mineral | | | Book (edition) | | extensively rewritten by the book's distinguished group of authors in the light of new research and important...Willard Lincoln. Encyclopedia of minerals ~~cbe County Public Library Saguache, Colorado OEMCO For Refere...all varietal names, synonyms, spelling variants, group names, and so forth; only names in contemporary...contemporary use have been included. Most of the mineral group lists presented were taken from the Glossa,y of Mineral...letters pointing out that for some entries our space group, Z, and lattice constants are mutually exclusive |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted...Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite specimens |  | | Book (edition) | | Corporate Drive, Suite 400, Burlington MA 01803, USA First published 1962 Second edition 1970 Third edition...Chrysoberyl Spinel Topaz Tourmaline The Garnets Feldspar Group Zircon Peridot 69 92 117 150 167 171 175 185 195...book would be more sensibly shared out among a group of authors/gemmologists, each member tackling his...Canada, Germany, Thailand, Vietnam, the UK and the USA, making this a truly international collaboration...Edition being extracted from ‘Gems of the Silica Group’ to form a separate chapter. I have also reintroduced |
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Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA