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
39
4
CL, CL/SEM, SXES
Mineral
Diaspore
AlO(OH)
Diaspore (group)
—
4
0
—
Mineral, Hydroxide
Diaspore (group)
MIII O(OH)
—
Montroseite , Bracewellite , Tsumgallite , Goethite , Groutite , Diaspore
0
0
—
Group , Hydroxide
Dickite
Al2 Si2 O5 (OH)4
Kaolinite (subgroup)
—
0
0
—
Mineral, Aluminosilicate , Hydroxide
Diopside
CaMgSi2 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
12
1
Reflectance
Mineral, Silicate
Dissakisite-(Ce)
CaCe(Al2 Mg)[Si2 O7 ][SiO4 ]O(OH)
Allanite (group)
—
0
0
—
Mineral, Aluminosilicate , Hydroxide
Dissakisite-(La)
CaLa(Al2 Mg)[Si2 O7 ][SiO4 ]O(OH)
Allanite (group)
—
0
0
—
Mineral, Aluminosilicate , Hydroxide
Dmisteinbergite
Ca(Al2 Si2 O8 )
—
—
0
0
—
Mineral, Aluminosilicate
Dolomite
CaMg(CO3 )2 , (Ca,Mg,Mn)CO3
Dolomite (group)
—
Open
Dolomite specimen from Serra das Éguas, Brumado, Bahia, Northeast Region, Brazil
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
28
2
CL, PL/Laser
Mineral, Carbonate
Dolomite (group)
A II X II (CO3 )2 , A =Ca,Ba; X =Fe,Mg,Mn,Zn
—
Dolomite , Ankerite , Kutnohorite , Norsethite , Minrecordite
0
0
—
Carbonate , Group
Donbassite
Al2 (Si3 Al)O10 (OH)2 ·Al2.33 (OH)6
Chlorite (group)
—
0
0
—
Mineral, Aluminosilicate , Hydroxide
Donpeacorite
(Mn,Mg)MgSi2 O6
Orthopyroxene
—
0
0
—
Mineral, Silicate
Doyleite
Al(OH)3
—
—
0
0
—
Mineral, Hydroxide
Dravite
NaMg3 Al6 (Si6 O18 )(BO3 )3 (OH)3 (OH)
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
0
—
Mineral, Aluminosilicate , Borate , Hydroxide
Dravite-Schorl (series)
Na(Mg,FeII )3 Al6 (Si6 O18 )(BO3 )3 (OH)3 (OH)
Tourmaline
—
0
0
—
Aluminosilicate , Borate , Hydroxide , Series