GEM STONES.NEWNHAM RE.1970; EARTH MINER. SCI., U.S.A.; 1970(10), VOL. 40, NUM. 0001, P. 1 A 5Miscellaneous

COLLECTING IN CZECHOSLOVAKIABANCROFT P.1973; LAPIDARY J.; U.S.A. ; 1973, VOL. 27, NUM. 0001, P. 84 A 96Serial Issue

GEMSTONE.SWITZER G.1973; IN: EARTH RESOUR.; WASHINGTON, D.C. U.S. INF. AGENCY,1973, P. 233 A 245Book

LA MICROSCOPIA CON LUZ POLARIZADA Y SUS APLICACIONES EN GEMOLOGIA. = LA MICROSCOPIE EN LUMIERE POLARISEE ET SES APPLICATIONS A LA GEMMOLOGIEBOSCH FIGUEROA JM; MONES ROBERDEAU L.1972; GEMOLOGIA; ESP; 1972, VOL. 4, NUM. 0015-0016, P. 5 A 25Serial Issue

THE MINERAL MUSEUM.BANCROFT P.1972; LAPIDARY J.; USA; 1972, VOL. 26, NUM. 0004, P. 594 A 613Miscellaneous

KEY FOR IDENTIFICATION OF COMMON CUT AND UNCUT GEMSTONES.1971; AUSTRAL. GEMMOLOGIST; AUS; 1971, VOL. 11, NUM. 0003, P. 6 A 7Miscellaneous

INCLUSIONS SOLIDES DES GEMMES.SCHUBNEL HJ.1970; BULL. ASS. FR. GEMMOL.; FRA; 1970, NUM. 0023Miscellaneous

EPIDOTE FOR LAPIDARIES.COOKE C.1970; LAPIDARY J.; USA; 1970(1), VOL. 23, NUM. 0010, P. 1370 A 1379Miscellaneous

CONTRIBUTION A L'ETUDE DES INCLUSIONS SOLIDES DES GEMMES.GIRAUD R; PICOT P; SCHUBNEL HJ et al.1969; BULL. ASS. FR. GEMMOL.; FRA; 1969(3), NUM. 0018, P. 12 A 13Miscellaneous

COMMON GEMS OF SAN DIEGO COUNTY, CALIFORNIA.JOHNSON PW.1969; J. GEMMOL.; GBR; 1969(7), VOL. 11, NUM. 0007, P. 274 A 296Miscellaneous

AUSTRALIA AND GEMMOLOGY : NOMENCLATURE AND TRADING. PART 3.WIRTH AA.1968; AUSTRAL. GEMMOLOGIST; AUS; 1968(5), VOL. 10, NUM. 0002, P. 21 A 23Miscellaneous

AZURITE AND MALACHITE.CHIDLEY CM.1968; AUSTRAL. LAPIDARY MAG.; AUS; 1968(7), VOL. 4, NUM. 0012, P. 29 A 32Miscellaneous

DIE EDELSTEINE DER INSEL CEYLON (LES PIERRES PRECIEUSES DE CEYLAN).GUEBELIN E.1968; IMPRIMERIE.CORBAZ.S.A.MONTREUX.; 1968, P. 1 A 152Miscellaneous

SUR UN GISEMENT DE PIERRES PRECIEUSES DECOUVERT DANS UN DOMAINE DE LA COMMUNE DE BOMMES (GIRONDE).BRIEUSSEL.1928; BULL. SOC. SCI. ARTS. BELLES LETTRES DU TARN; FRA; 1928, NUM. 0027-0028, P. 181 A 183Miscellaneous

LES PIERRES D'AUVERGNE.DEMARTY J.1898; REVUE D'AUVERGNE; FRA; 1898, NUM. 0001-0004, P. 247 A 302Miscellaneous

LES PIERRES PRECIEUSES.DE LATIL P.1975; SCI. ET AVENIR; FR.; 1975, NUM. 0346, P. 1162 A 1177Serial Issue

BLUE COLOUR-CHANGE GEM GARNET FROM EAST AFRICA.JOBBINS EA; SAUL JM; TRESHAM AE et al.1975; J. GEMMOL.; GBR; 1975, VOL. 14, NUM. 0005, P. 201 A 208Serial Issue

EL COLOR DE LAS GEMAS. = LA COULEUR DES GEMMESBOSCH FIGUEROA JM; MONES ROBERDEAU L.1973; GEMOLOGIA; ESP.; 1973, VOL. 5, NUM. 0019-0020, P. 35 A 41Serial Issue

PIEDRAS SINTETICAS MODERNAS. = LES PIERRES SYNTHETIQUES MODERNESO'DONOGHUE M.1973; GEMOLOGIA; ESP; 1973, VOL. 5, NUM. 0017-0018, P. 31 A 35Serial Issue

DEVELOPMENTS AND HIGHLIGHTS AT GIA'S LAB IN NEW YORKCROWNINGSHIELD R.1972; GEMS AND GEMOL.; U.S.A.; 1972, VOL. 14, NUM. 0002, P. 50 A 57Serial Issue

LAPIS LAZULI FROM AFGHANISTANBARIAND P.1972; MINER. DIGEST; U.S.A. ; 1972, VOL. 4, P. 6 A 14Serial Issue

GEM TREASURES OF AUSTRALIA.SCHOONOVER M.1972; LAPIDARY J.; USA; 1972, VOL. 26, NUM. 0004, P. 628 A 639Miscellaneous

EDELSTEINVORKOMMEN IN AFRIKA. = GISEMENTS DE PIERRES PRECIEUSES EN AFRIQUE.BANK H.1970; AFR. SPECTRUM; ALL; 1970, NUM. 0002, P. 96 A 110Miscellaneous

TASMANIA. GEM OF A STATE.CADLE B.1969; AUSTRAL. LAPIDARY MAG.; AUS; 1969(2), VOL. 5, NUM. 0007, P. 19 A 21Miscellaneous

THE DETERMINATION DIAGRAM : AN AID FOR RAPID IDENTIFICATION OF GEMSTONES.ARPS CES.1969; J. GEMMOL.; GBR; 1969(4), VOL. 11, NUM. 0006, P. 221 A 226Miscellaneous