Anorthoclase (Na,K)AlSi3 O8
Alkali feldspar —
Open
Specimen of anorthoclase, from Mount Franklin, 9 km north of Daylesford, Victoria, Australia. Specimen M 24369.1, Museums Victoria
Photo by William D Birch, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)
4
0
0
—
Aluminosilicate , Variety
Anthophyllite ☐Mg2 Mg5 Si8 O22 (OH)2
Minerals containing OH , Anthophyllite root name group —
Open
Anthophyllite specimen from Kopparberg, Ljusnarsberg, Västmanland, Sweden. Size: 47x43x30 mm
2010 Didier Descouen (via Wikimedia Commons), CC-BY-SA-3.0
0
5
0
PL
Mineral, Silicate , Hydroxide
Antigorite Mg3 Si2 O5 (OH)4
Serpentine (subgroup) , Minerals containing OH —
Open
Specimen of antigorite, from Lord Brassey Mine, Heazlewood district, Tasmania, Australia. Size: 4.3 x 2.8cm.
Photo by John Sobolewski (JSS), via Wikimedia Commons, CC-BY-3.0
1
0
0
—
Mineral, Silicate , Hydroxide
Antimony Sb
—
—
Open
Antimony specimen from the Monarch Antimony mine, Gravelotte, Murchison Range, Limpopo Province, South Africa. Size: 3.2 x 2.6 x 2.2 cm
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
1
13
2
SXES
Mineral , Metal , Element
Apatite Ca5 (PO4 )3 (OH,F,Cl)
Apatite (group) Hydroxylapatite , Fluorapatite , Chlorapatite , Collophane
Open
Doubly-terminated fluorapatite crystal in calcite, from Yates mine, Otter Lake, Pontiac RCM, Outaouais, Québec, Canada
Photo by Didier Descouens, CC-SA-4.0
8
335
10
CL, CL/SEM, EDS, Reflectance
Orthophosphate , Phosphate, Informal
Apophyllite AB 4 [Si8 O22 ]X ·8H2 O, A =K,Na,NH4 ,Cs, B =Ca,Sr, X =F,OH—
Hydroxyapophyllite-(K) , Fluorapophyllite-(Cs) , Hydroxymcglassonite-(K) , Fluorapophyllite-(NH4) , Fluorapophyllite-(Na) , Fluorapophyllite-(K)
Open
Photo by Photolitherland (via Wikimedia Commons), CC-BY-SA-3.0
0
12
3
PL/Laser
Silicate , Hydrated , Group
Aragonite CaCO3
Minerals containing CO3 , Calcium carbonate , Aragonite (group) —
Open
Aragonite specimen from Mine de Salgigne, Filon Coroluna, Aude, France
2010 Didier Descouens (via Wikimedia Commons), CC-BY-SA-3.0
10
22
1
PL/Laser
Carbonate , Mineral
Arctite Ba(Ca7 Na5 )(PO4 )4 (PO4 )2 F3
Minerals containing PO4 —
Open
White glassy granular crystals of arctite from Vuonnemiok River Valley, Kola, Russian Federation
Photograph by David Hospital, CC-BY-SA 3.0
0
8
0
PL, PL/XL
Mineral, Phosphate , Orthophosphate
Argentopyrite AgFe2 S3
—
—
1
0
0
—
Mineral, Sulphide
Armalcolite (Mg,FeII )Ti2 O5
—
—
1
0
0
—
Mineral, Lunar , Titanate
Arsenolite As2 O3
Arsenic(III) oxide —
1
0
0
—
Mineral, Arsenite , Simple oxide
Arsenopyrite FeAsS
Arsenopyrite (group) —
Open
Image of Arsenopyrite in specimen 'M 25917' (Museums Victoria) from Redruth, Cornwall, England
Photograph by Frank Coffa, Museums Victoria, CC-BY-4.0
12
0
0
—
Mineral, Sulphide
Arsenuranylite Ca(UO2 )4 (AsO4 )2 (OH)4 ·6H2 O
Minerals containing OH , Minerals containing H2O , Minerals containing AsO4 —
Open
Arsenuranylite from the TL in Cherkasar Uranium Deposit, Pap, Chatkal-Kuraminskii Range, Namangan Viloyati, Uzbekistan
Photo by David Hospital (on wikimedia.org), CC-BY-SA 4.0
0
3
0
PL
Hydroxide , Mineral, Arsenate , Hydrated , Uranyl
Atacamite Cu2 Cl(OH)3
Minerals containing OH , Atacamite (group) —
Open
Atacamite specimen from Wallaroo Mine, Kadina, Yorke Peninsula, South Australia, Australia. Size: 5.4 x 4.5 x 2.4 cm.
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
2
0
0
—
Hydroxide , Mineral, Halide
Augite (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2 O6
Clinopyroxene —
Open
Augite, Muhavura volcano, Ruhengeri Region, Northern Province, Rwanda
CC BY-SA 4.0, Didier Descouens
13
4
3
EDS, Reflectance
Mineral, Silicate
