Rubidium chloride RbCl
—
—
Open
Crystal structure of rubidium chloride
©
Image by Benjah-bmm27 (via Wikimedia Commons), Public Domain
1
0
Unknown
Halide , Synthetic , Compound
Ruby Al2 O3
Corundum —
Open
Ruby specimen from Tingsongkhla, Thailand
©
Photo by Chip Clark, via Smithsonian National Museum of Natural History
3
1
CL/SEM
Variety, Simple oxide
Ruthenium Ru
—
—
Open
A 99.95% pure ruthenium crystal grown by chemical vapour deposition (CVD)
©
(C) 2024 François Nguyen (via Wikimedia Commons). CC-BY-2.0
8
2
SXES
Mineral , Metal , Element
Rutherfordine UO2 (CO3 )
Minerals containing CO3 —
Open
Rutherfordine specimen from Musonoi Mine, Kolwezi, Kolwezi District, Katanga Copper Crescent, Katanga, Democratic Republic of Congo. Field of view 7 mm
©
Photo by Leon Hupperichs (via Wikimedia Commons), CC-BY-SA 3.0
4
0
PL
Carbonate , Mineral, Uranyl
Rutile TiO2
Rutile (group) , Titanium dioxide Ilmenorutile , Strüverite
Open
Rutile specimen from Alexander County, North Carolina, USA. 2.5cm in size.
©
Photo by Carlin Green, USGS, Public Domain
2
4
CL, CL/SEM, EDS, SXES
Mineral, Simple oxide
Sabugalite HAl(UO2 )4 (PO4 )4 ·16H2 O
Autunite (group) , Minerals containing PO4 , Minerals containing H2O —
Open
Sabugalite, Monts d´Ambrazac, Margnac, France, size: 45 mm
©
Photo by Weirdmeister (via Wikimedia Commons), CC-BY-SA 4.0
11
0
PL
Mineral, Orthophosphate , Phosphate , Uranyl , Hydrated
Sakhaite Ca48 Mg16 (BO3 )32 (CO3 )16 ·2(H2 O,HCl)
Minerals containing BO3 , Minerals containing CO3 , Minerals containing H2O —
2
0
PL/XL
Mineral, Hydrated , Borate , Carbonate
Saléeite Mg(UO2 )2 (PO4 )2 (H2 O)10
Autunite (group) , Minerals containing PO4 , Minerals containing H2O —
Open
Saléeite from Ranger No. 3 Deposit/Pit, Ranger Mine, Jabiru, Kakadu National Park, Northern Territory, Australia. Size: 9.6 x 6.9 x 4.5 cm.
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
13
0
PL
Mineral, Orthophosphate , Uranyl , Hydrated , phosphate
Samarium ultraphosphate SmP5 O14
REE ultraphosphate —
8
2
CL/SEM, SXES
REE, Phosphate , Synthetic , Compound , Ultraphosphate
Sanidine (K,Na)(Si,Al)4 O8
Alkali feldspar —
Open
Sanidine specimen from Itrongay, Mahasoa East Commune, Betroka District, Anosy Region, Tuléar Province, Madagascar. Size: 2.5 x 1.9 x 1.0 cm, 47.09 ct.
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
5
0
PL, PL/XL
Mineral, Aluminosilicate
Sapphire Al2 O3
Corundum —
Open
Sapphire specimen from Malawi
©
Photo by Greg Polley, via Smithsonian National Museum of Natural History
11
0
CL/FloodGun, CL/SEM, PL/Laser, Unknown
Variety, Simple oxide
Scandium Sc
—
—
Open
Scandium crystals in a sample jar
©
(C) 2012 Rrausch1974 (via Wikimedia Commons). CC-BY-SA-3.0
8
2
SXES
Metal , Element
Scandium orthophosphate ScPO4
REE phosphate Scandium yttrium orthophosphate, Eu3+ doped
4
0
PL/UV, TL
Phosphate , Orthophosphate , Compound
Scapolite (Na,Ca)4 [Al3 Si9 O24 ]Cl
Scapolite (group) —
Open
©
Photo by Мухин Кирилл (via Wikimedia Commons), CC-BY-SA 4.0
46
0
PL, PL/XL
Aluminosilicate , Series
Scheelite CaWO4
Scheelite (group) , Calcium tungstate , Minerals containing W[VI]O4 Molybdoscheelite
Open
Scheelite specimen from Camp Bird Mine, Ouray Co., CO, USA
©
Photo by Ken Larsen, via Smithsonian National Museum of Natural History
198
8
CL, CL/SEM, EDS, Reflectance, SXES
Mineral, Tungstate
