Diamond C
Carbon —
Open
A rare blue diamond from India, in the Smithsonian National Museum of Natural History (G3551-00)
©
Photo by Chip Clark, via Smithsonian National Museum of Natural History
63
4
CL, CL/SEM, SXES
Mineral
Diaspore AlO(OH)
Minerals containing OH , Diaspore (group) —
Open
Diaspore from Selçuk, Muğla Province, Aegean Region, Turkey. This is a particularly robust and gemmy, twinned crystal. It is complete-all-around, and shows unusually well-developed, broad terminations. Ex. Bill Larson Collection. Joe Budd photo
©
Photo by Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
5
0
IR, PL/XL
Mineral, Hydroxide
Dioctahedral sheet silicate —
—
—
2
0
Reflectance
Group , Silicate, Informal
Diopside CaMgSi2 O6 , Ca(Mg,V)Si2 O6
Clinopyroxene —
Open
Diopside specimen from De Kalb, De Kalb Township, St Lawrence County, New York, USA. Size: 4.3 x 3.3 x 1.9 cm.
©
2010 Rob Lavinsky, iRocks.com, CC-BY-SA-3.0
21
2
Reflectance
Mineral, Silicate
Dolomite CaMg(CO3 )2
Minerals containing CO3 , Dolomite (group) —
Open
Dolomite specimen from Serra das Éguas, Brumado, Bahia, Northeast Region, Brazil
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
30
2
CL, PL/Laser
Carbonate , Mineral
Dravite NaMg3 Al6 (Si6 O18 )(BO3 )3 (OH)3 (OH)
Minerals containing OH , Minerals containing BO3 , Tourmaline —
Open
Specimen of dravite with muscovite from Yinnieharra Station, WA, Australia
©
Photo by Joel E. Arem, via Smithsonian National Museum of Natural History
0
1
Reflectance
Hydroxide , Mineral, Aluminosilicate , Borate
Dumortierite Al(Al2 O)(Al2 O)2 (SiO4 )3 (BO3 )
Minerals containing BO3 , Minerals containing SiO4 —
Open
Dumortierite specimen from Rochester, Nevada, USA
©
Photo by NMNH Photo Services, Smithsonian National Museum of Natural History
4
0
PL, PL/XL
Mineral, Aluminosilicate , Borate
Dundasite PbAl2 (CO3 )2 (OH)4 ·H2 O
Minerals containing OH , Minerals containing CO3 , Minerals containing H2O —
Open
Dundasite, from Le Rocheux Mine, Theux, Verviers, Belgium. Field of view: 5 mm
©
Photo by Henk Smeets – tomeikminerals.com (via Wikimedia Commons). CC-BY-4.0
0
1
Reflectance
Carbonate , Hydroxide , Mineral, Hydrated
Dysprosium ultraphosphate DyP5 O14
REE ultraphosphate —
5
2
CL/SEM, SXES
REE, Phosphate , Synthetic , Compound , Ultraphosphate
Edenite NaCa2 Mg5 (Si7 Al)O22 (OH)2
Minerals containing OH , Edenite root name group —
Open
Edenite specimen from Bancroft, Hastings County, Ontario, Canada
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
14
0
PL
Mineral, Silicate , Hydroxide
Elbaite Na(Al1.5 Li1.5 )Al6 (Si6 O18 )(BO3 )3 (OH)3 (OH)
Minerals containing OH , Minerals containing BO3 , Tourmaline —
Open
Elbaite from Tourmaline Queen Mine, Pala, San Diego Co., California, USA
©
Photo by Chip Clark, Smithsonian Institution. CC0
4
0
PL, PL/XL
Hydroxide , Mineral, Aluminosilicate , Borate
Elpidite Na2 ZrSi6 O15 ·3H2 O
Minerals containing H2O —
Open
Elpidite with pyrite from Mont-Saint-Hilaire, Quebec, Canada
©
Photo by Chip Clark, via Smithsonian National Museum of Natural History
3
0
PL/XL
Mineral, Silicate , Hydrated
Embolite Ag(Br,Cl)
Embolite (series) —
Open
Chlorargyrite from Silver King Mine, Trojan District, Providence Mts, San Bernardino County, California, USA
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
2
0
PL
Halide , Variety
Emerald Be3 Al2 Si6 O18
Beryl —
Open
Crystals of emerald (variety of beryl)
©
Photo by Аружан Жамбулатова (via Wikimedia Commons), CC-BY-SA 3.0
4
0
PL
Aluminosilicate , Variety
Enstatite (Mg,FeII )2 Si2 O6 , Mg2 Si2 O6
Orthopyroxene —
Open
Enstatite specimen from Tanzania
©
Photo by Greg Polley, via Smithsonian National Museum of Natural History
5
0
IL, PL/XL, Reflectance, Unknown
Mineral, Silicate
