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DACHIARDITE – Altoona, Wahkiakum County, Washington
DACHIARDITE - Cape Lookout, Tillamook County, Oregon
DADSONITE - Wolfsberg, Harz Mountains, Germany
DAKEITE – Lost Creek, near Wamsutter, Sweetwater County, Wyoming – See SCHROCKINGERITE
DANNEMORITE - Brunsjogruvan (Brunsjo Mine), near Grythyttan, Orebro, Sweden
DAVIDITE-(La) - Crocker's Well, Olary Province, S.A., Australia                          
DAVYNE - Laacher See Region, Ettringen, Bellerberg, Eifel District, Rheinland-Pfalz, Germany
DAWSONITE - Mte. Amiata, Province of Siena, Tuscany, Italy  D                            
DAWSONITE – Poudrette Quarry, Mont St. Hilaire, Rouville County, Quebec, Canada
DAWSONITE (Chromian) – Limoncino, Valle Benedetta, Livorno, Italy                                                   
DECRESPIGNYITE-(Y) – Paratoo Mine, Paratoo, S.A., Australia  T
DEERITE - Longvale Quarry, near Laytonville, Mendocino County, California  T             
DEFERNITE - Kombat Mine, Namibia
DELAFOSSITE – Copper Queen Mine, Bisbee, Cochise County, Arizona
DELHAYELITE - Mt. Yukspor, Khibiny Massif, Kola Peninsula, Russia
DELINDEITE - Diamond Jo Quarry, Magnet Cove, Hot Spring County, Arkansas  T              
DENNINGITE – San Miguel Prospect, Moctezuma District, Sonora, Mexico
DESAUTELSITE - Southern San Benito County, California  T                                  
DEVILLINE - Glucksrad, Oberschulenburg, Harz Mountains, Germany
DEWINDTITE – San Cristobal Pegmatite, North of Santander, Colombia
DIABOLEITE - Higher Pitts, Merehead Quarry, Mendip Hills, Somerset, England              
DIADOCHITE - New Idria Mine, Southern San Benito County, California
DIAPHORITE - Van Silver Claim, near Whistler, B.C., Canada                               
DIASPORE – between Denizli, Mugla, and Aydin, Caria Region, Southern Turkey
DIASPORE – Dover Mine, near Hawthorne, Mineral County, Nevada
DIASPORE Var. Mangandiaspore – near Postmasburg, Griqualand-West, South Africa
DIGENITE Var. Selenian Digenite - Musonoi Mine, Kolwezi, Shaba Province, Zaire           
DIOPSIDE Var. Zinc Schefferite - Franklin, Sussex County, New Jersey                     
DIVERSILITE-(Ce) – Mt. Yukspor, Khibiny Massif, Kola Peninsula, Russia
DJERFISHERITE – Coyote Peak, Humboldt County, California
DJURLEITE - Gem Mine, Southern San Benito County, California   D                            
DJURLEITE - Green Monster Mine, Dome Rock Mountains, near Quartzsite, Yuma County, Arizona
DJURLEITE - Musonoi Mine, Kolwezi, Shaba Province, Zaire                                 
DOLOMITE Var. Co-Dolomite – Tsumeb, Namibia
DOLORESITE – Runge Mine, Fall River County, South Dakota
DOMEYKITE – Cashin Mine, Montrose County, Colorado
DOMEYKITE Var. Mohawkite – Mohawk Mine, Houghton County, Michigan  D, T
DONNAYITE-(Y) - Poudrette Quarry, Mont St. Hilaire, Rouville Co., Quebec, Canada  T      
DUFRENITE - Rock Run, Cherokee County, Alabama  D                                        
DUFRENITE - Wheal Phoenix, Linkinhorne, Cornwall, England  D                              
DUFRENITE - York Mine, Polk County, Arkansas                                             
DUFTITE - Tsumeb, Namibia  D, T                                                
DUGGANITE – 400’ Level, Empire Mine, Tombstone, Cochise County, Arizona
DUHAMELITE - Navojoa, Sonora, Mexico
DUNDASITE – Padstow Consols, Padstow, Cornwall, England
DUNDASITE - Tynagh Mine, near Maam, County Galway, Southern Ireland                      
DUNDASITE - West Comet Mine, Dundas, Tasmania, Australia  D, T
DUNDASITE Var. Cuprodundasite - Tui Mine, Mt. Te Aroha, North Island, New Zealand        
DURANGITE - Thomas Range, Juab County, Utah
DUSSERTITE – Djebel Debar, Hamman Meskoutine, Constantine, Algeria
DUSSERTITE - Prospect W. of Rhyolite Pass, N. of Luning, Mineral County, Nevada          
DUSSERTITE - Tecoma, Elko County, Nevada
DYPINGITE - Clear Creek District, Southern San Benito County, California
DYPINGITE (Yoshikawaite) - Yoshikawa, Shinshiro Shi, Aichi Pref., Japan
DYSANYLITE – Perovskite Hill, Magnet Cove, Garland County, Arkansas – See PEROVSKITE
DYSCRASITE - Mine Wenzel, Black Forest, Wittichen, Baden, West Germany                   
DYSCRASITE - St. Andreasberg, Harz Mountains, Germany  D                                 
DYSCRASITE - Wolfach, Black Forest, Baden, Germany  D                                    

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