Aluminium
Al
—
Steinhardtite
Open
©
CC-BY-SA 3.0, images-of-elements.com
6
2
SXES
Mineral, Element , Metal
Aluminium nitride
AlN
—
—
20
0
CL, CL/SEM
Synthetic , Compound, Nitride
Aluminium orthophosphate
AlPO4
—
Berlinite
Open
Synthetic Berlinite (AlPO4) crystals grown by a hydrothermal process
©
Photo by DMGualtieri, CC-BY-SA 3.0
2
0
PL/UV
Phosphate , Orthophosphate , Synthetic , Compound
Alunite
KAl3 (SO4 )2 (OH)6
Minerals containing OH , Minerals containing SO4
—
Open
Alunite, massive material (Pen for scale) - Mineral collection of Brigham Young University Department of Geology, Provo, Utah - BYU index 10-7015
©
Photo by Andrew Silver, US Geological Survey. Public Domain
4
0
PL, Reflectance
Hydroxide , Mineral, Sulphate
Amazonite
KAlSi3 O8
Microcline
—
Open
Microcline (var. amazonite) and quartz, from Smoky Hawk claim, Crystal Peak area, Teller County, Colorado, USA. Size: 10.7 x 7.0 x 5.7 cm
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
7
0
PL, PL/XL
Aluminosilicate , Variety
Amber
—
—
—
1
0
PL
Compound , Organic
Amblygonite
LiAl(PO4 )F
Amblygonite (group) , Minerals containing PO4
—
Open
Faceted amblygonite gem, from Ceará, Brazil. Specimen M 36903, Museums Victoria.
©
Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)
4
1
Reflectance
Mineral, Phosphate , Orthophosphate
Amesite
Mg2 Al(SiAl)O5 (OH)4 , Mg2 Al(AlSiO5 )(OH)4
Minerals containing OH , Serpentine (subgroup)
—
Open
Amesite specimen from Chester, MA, USA
©
Photo by Burton Litman, via Smithsonian National Museum of Natural History
1
0
PL/XL
Hydroxide , Mineral, Aluminosilicate
Amethyst
SiO2
Quartz
—
Open
Amethyst from Guerrero, Mexico
©
Photo by Chip Clark, Smithsonian Institution. CC0
1
0
PL
Variety , Simple oxide
Ammonium bromide
NH4 Br
—
—
2
0
IR
Halide , Ammonium , Compound
Ammonium chloride
NH4 Cl
—
—
2
0
IR
Halide , Ammonium , Compound
Ammonium fluoride
NH4 F
—
—
2
0
IR
Halide , Compound , Ammonium
Amphibole
AX2 Z5 ((Si,Al,Ti)8 O22 )(OH,F,Cl,O)2
—
Clinoamphibole , w(OH, F, Cl)-dominant amphibole
Open
Tremolite from Mt Ibity, Antananarivo Province, Madagascar
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
1
4
EDS
Silicate , Supergroup
Analcime
NaAlSi2 O6 ·H2 O
Minerals containing H2O , Zeolite (group)
—
Open
Analcime on microcline, from Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
©
Photo by Modris Baum (via Wikimedia Commons), Public Domain
7
0
IR, PL, PL/Laser
Mineral, Hydrated , Aluminosilicate
Anatase
TiO2
Titanium dioxide
—
2
0
PL
Mineral, Simple oxide