Barytocelestine (Sr,Ba)SO4
—
—
Open
Celestine crystals (field of view 3.5 × 2.6 cm). Found from Sakoany deposit, Katsepy, Mitsinjo District, Boeny region, Madagascar
Photo (c) 2021 Ivar Leidus (via Wikimedia Commons), CC-BY-SA 4.0
0
1
0
PL/XL
Sulphate , Variety
Bastnäsite (Ce/Nd/Y/REE)(CO3 )F
Bastnäsite (group) Bastnäsite-(La) , Bastnäsite-(Y) , Bastnäsite-(Ce) , Bastnäsite-(Nd)
Open
Specimen of Bastnäsite-(Ce) from Zagi Mountain, Pakistan. Picture width 5 mm.
Photo by Christian Rewitzer (via Wikimedia Commons), CC-BY-SA 3.0
3
0
3
CL, Reflectance
Carbonate , REE, Halide
Bavenite Ca4 Be2+x Al2-x Si9 O26-x (OH)2+x (x = 0 to 1)
Minerals containing OH —
Open
Colourless bavenite with some minor fluorite (purple), from Ermakovskoe Be Deposit, Buriatia Republic, Transbaikalia, Russia. Field of view 8 mm.
Photo (c) 2010 Leon Hupperichs (via Wikimedia Commons), CC-BY-SA 3.0
0
3
0
PL/XL
Hydroxide , Mineral, Aluminosilicate
Bayerite Al(OH)3
Minerals containing OH —
0
6
0
IR
Mineral, Hydroxide
Bayleyite Mg2 (UO2 )(CO3 )3 ·18(H2 O)
Minerals containing CO3 , Minerals containing H2O —
Open
Bayleyite from Ambrosia Lake area, Grants District, McKinley Co., NM, USA
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
0
13
0
PL
Carbonate , Mineral, Hydrated , Uranyl
Bazirite BaZrSi3 O9
Benitoite (group) —
Open
Colorless grains fluorescent (SW, white) of bazirite associated to celsian (white granular), pale green tremolite and taramellite. Ex.Ralpf Merrill collection. From: Big Creek, Fresno County, California, United States of America.
Photo (c) 2018 David Hospital (via Wikimedia Commons), CC-BY-SA 4.0
0
5
0
CL, PL, PL/UV
Mineral, Silicate
Becquerelite Ca(UO2 )6 O4 (OH)6 ·8H2 O, Ca(UO2 )6 O4 (OH)6 ·8(H2 O)
Minerals containing OH , Minerals containing H2O —
Open
Lathe-like becquerelite crystals on uranophane, from Shinkolobwe, Katanga (Shaba), Democratic Republic of Congo
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
0
4
0
PL
Hydroxide , Mineral, Uranyl , Hydrated
Beidellite (Na,Ca)0.3 Al2 (Si,Al)4 O10 (OH)2 ·n H2 O
Minerals containing OH , Smectite (group) , Minerals containing H2O —
0
1
0
IR
Hydroxide , Mineral, Hydrated , Aluminosilicate
Benitoite BaTiSi3 O9
Benitoite (group) —
Open
Cushion-cut medium violet blue benitoite weighing 7.7 ct.
Copyright Smithsonian National Museum of Natural History
2
8
6
CL/SEM, PL/Laser, SXES
Mineral, Silicate
Berezanskite KTi2 Li3 Si12 O30
Osumilite (group) —
0
2
0
PL
Mineral, Silicate
Berlinite AlPO4
Aluminium orthophosphate —
Open
Synthetic Berlinite (AlPO4) crystals grown by a hydrothermal process
Photo by DMGualtieri, CC-BY-SA 3.0
3
3
2
CL/SEM, SXES
Mineral, Phosphate , Orthophosphate , Synthetic
Bertrandite Be4 Si2 O7 (OH)2
Minerals containing OH —
Open
Bertrandite crystals from Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal. Field of View: 5 mm.
Photo by César Menor-Salván (via Wikimedia Commons), CC-BY 3.0
0
1
0
PL/XL
Mineral, Silicate , Hydroxide
Beryl Be3 Al2 Si6 O18
Beryl (group) Heliodor , Emerald , Goshenite , Aquamarine , Morganite , Red beryl
Open
Beryl specimen from Violet Claims, Wawa Mountains, Beaver Co., UT, USA
Photo by Chip Clark, via Smithsonian National Museum of Natural History
3
15
1
Reflectance
Mineral, Aluminosilicate
Beryllium Be
—
—
Open
Beryllium, >99 % pure, crystalline big fragment >140 g
Photo by Alchemist-hp (pse-mendelejew.de), via Wikimedia Commons. CC-BY-NC-ND 3.0
1
2
1
SXES
Metal , Element
Biotite K(Mg,Fe)3 AlSi3 O10 (OH,F)2
Mica Phlogopite , Fluorophlogopite, synthetic , Annite , Biotite-2M1 , Oxyphlogopite , Biotite-1M , Tetraferriphlogopite , Eastonite , Fluorotetraferriphlogopite , Fluorophlogopite , Phlogopite, Fe , Tetraferriannite , Fluorannite , Siderophyllite
Open
Biotite specimen from Rist Mine, Hiddenite, Alexander County, North Carolina, USA
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
2
0
2
EDS
Hydroxide , Aluminosilicate , Subgroup
