ZEOLITES-ECONOMIC MINERALS IN COLORADO'S FUTURE = LES ZEOLITES: MINERAUX ECONOMIQUES DANS LE FUTUR POUR LE COLORADOGUDE AJ III.1980; INDUSTRIAL MINERALS IN COLORADO AND THE ROCKY MOUNTAIN REGION. FORUM ON GEOLOGY OF INDUSTRIAL MINERALS. 15/1979/GOLDEN CO; USA; DENVER: COLORADO GEOLOGICAL SURVEY; DA. 1980; PP. 105Conference Paper

SILHYDRITE, 3SIO₂.H₂O, A NEW MINERAL FROM TRINITY COUNTY, CALIFORNIAGUDE AJ III; SHEPPARD RA.1972; AMER. MINERALOGIST; U.S.A. ; 1972, VOL. 57, NUM. 0007-0008, P. 1053 A 1065Serial Issue

CHABAZITE IN SILICEOUS TUFFS OF A PLIOCENE LACUSTRINE DEPOSIT NEAR DURKEE, BAKER COUNTY, OREGONGUDE AJ III; SHEPPARD RA.1978; J. RES. U.S. GEOL. SURV.; USA; DA. 1978; VOL. 6; NO 4; PP. 467-472; BIBL. 10 REF.; 6 ILL.Article

CHERT DERIVED FROM MAGADIITE IN A LACUSTRINE DEPOSIT NEAR ROME, MALHEUR COUNTY, OREGON.SHEPPARD RA; GUDE AJ III.1974; J. RES. U.S. GEOL. SURV.; U.S.A.; 1974, VOL. 2, NUM. 0005, P. 625 A 630Serial Issue

LEVYNE-OFFRETITE INTERGROWTHS FROM BASALT NEAR BEECH CREEK, GRANT COUNTY, OREGON.SHEPPARD RA; GUDE AJ III; DESBOROUGH GA et al.1974; AMER. MINERALOGIST; USA; 1974, VOL. 59, NUM. 0007-0008, P. 837 A 842Serial Issue

MINERALOGY, CHEMISTRY, GAS ADSORPTION, AND NH⁴ EXCHANGE CAPACITY FOR SELECTED ZEOLITIC TUFFS FROM THE WESTERN UNITED STATES = MINERALOGIE, CHIMIE, ADSORPTION DES GAZ ET CAPACITE D'ECHANGE DU NH₄ DE QUELQUES TUFS ZEOLITIQUES DE L'OUEST DES ETATS-UNISSHEPPARD RICHARD A; GUDE AJ III.1982; OPEN-FILE REP. (U. S. GEOL. SURV. 1978); ISSN 0196-1497; USA; DA. 1982; 17; BIBL. 31 REF.; 40 ANAL.; 5 TAB. ; ILL.;[; USGS/82-0969]Report

ZEOLITES IN THE PINE RIDGE INDIAN RESERVATION, SOUTH DAKOTA = LES ZEOLITES DE LA RESERVE INDIENNE DE PINE RIDGE, DAKOTA DU SUDRAYMOND WILLIAM H; BUSH AL; GUDE AJ III et al.1982; OPEN-FILE REP. (U. S. GEOL. SURV. 1978); ISSN 0196-1497; USA; DA. 1982; 16; BIBL. 2 REF.; 1 TAB. ; ILL.;[; USGS/82-0959]Report