Annite
A valid IMA mineral species - grandfathered
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About Annite
Formula:
KFe2+3(AlSi3O10)(OH)2
Colour:
Black, brown
Lustre:
Vitreous
Hardness:
2½ - 3
Specific Gravity:
3.3
Crystal System:
Monoclinic
Member of:
Name:
Originally named in 1868 by James Dwight Dana for a ferrian mica, but redefined as a ferroan mica by Alexander N. Winchell in 1925. Both authors named a mineral after the same locality at Rockport, Cape Ann, Essex Co., Massachusetts, USA.
Type Locality:
Mica Group. "Biotite"-Phlogopite series.
The Fe analogue of phlogopite, shirozulite, and hendricksite. The Al analogue of tetraferriannite. The hydroxyl analogue of fluorannite. Also the K analogue of the rubidium-dominant species UM2003-31-SiO:AlHLiRb.
Compare the structurally and (somewhat) chemically related meifuite.
The Fe analogue of phlogopite, shirozulite, and hendricksite. The Al analogue of tetraferriannite. The hydroxyl analogue of fluorannite. Also the K analogue of the rubidium-dominant species UM2003-31-SiO:AlHLiRb.
Compare the structurally and (somewhat) chemically related meifuite.
Unique Identifiers
Mindat ID:
241
Long-form identifier:
mindat:1:1:241:1
GUID
(UUID V4):
(UUID V4):
75bac520-9e95-4ab1-9304-c534b75c5272
IMA Classification of Annite
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Annite
9.EC.20
9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
71.2.2b.3
71 : PHYLLOSILICATES Sheets of Six-Membered Rings
2 : Sheets of 6-membered rings with 2:1 layers
71 : PHYLLOSILICATES Sheets of Six-Membered Rings
2 : Sheets of 6-membered rings with 2:1 layers
16.18.4
16 : Silicates Containing Aluminum and other Metals
18 : Aluminosilicates of Fe and alkalis
16 : Silicates Containing Aluminum and other Metals
18 : Aluminosilicates of Fe and alkalis
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Ann | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Ann | Kretz (1983) | Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279. |
Ann | Siivolam & Schmid (2007) | Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download |
Ann | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
Ann | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Ann | Warr (2020) | Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30 |
Physical Properties of Annite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Black, brown
Hardness:
2½ - 3 on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
{001}
{001}
Density:
3.3 g/cm3 (Measured) 3.36 g/cm3 (Calculated)
Optical Data of Annite
Type:
Biaxial (-)
RI values:
nα = 1.625 - 1.631 nβ = 1.690 nγ = 1.691 - 1.697
2V:
Calculated: 12° to 36°
Max Birefringence:
δ = 0.066
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
weak to distinct (r < v)
Comments:
brown (X), dark brown (Y=Z)
Comments:
Orientation: Y=b; measured 2V according to the Handbook of Mineralogy is from 0 to 5 deg.
Chemistry of Annite
Mindat Formula:
KFe2+3(AlSi3O10)(OH)2
Common Impurities:
Ti,Mn,Mg,Ca,Na,K,Cl
Crystallography of Annite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 5.3860(9) Å, b = 9.3241(7) Å, c = 10.2683(9) Å
β = 100.63(1)°
β = 100.63(1)°
Ratio:
a:b:c = 0.578 : 1 : 1.101
Unit Cell V:
506.82 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Tabular crystals or cleavage fragments, both having pseudohexagonal outlines, up to 15 cm in size; foliated masses.
Twinning:
Contact twins, composition surface {001}, twin axis [310].
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0000386 | Annite | Hazen R M, Burnham C W (1973) The crystal structures of one-layer phlogopite and annite American Mineralogist 58 889-900 | 1973 | 0 | 293 | ||
0002392 | Annite | Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W (2000) Spectroscopic and structural properties of synthetic micas on the annite-siderophyllite binary: Synthesis, crystal structure refinement, Mossbauer, and infrared spectroscopy American Mineralogist 85 449-465 | 2000 | 0 | 293 | ||
0002393 | Annite | Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W (2000) Spectroscopic and structural properties of synthetic micas on the annite-siderophyllite binary: Synthesis, crystal structure refinement, Mossbauer, and infrared spectroscopy American Mineralogist 85 449-465 | 2000 | 0 | 293 | ||
0002394 | Annite | Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W (2000) Spectroscopic and structural properties of synthetic micas on the annite-siderophyllite binary: Synthesis, crystal structure refinement, Mossbauer, and infrared spectroscopy American Mineralogist 85 449-465 | 2000 | 0 | 293 | ||
0002395 | Annite | Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W (2000) Spectroscopic and structural properties of synthetic micas on the annite-siderophyllite binary: Synthesis, crystal structure refinement, Mossbauer, and infrared spectroscopy American Mineralogist 85 449-465 | 2000 | 0 | 293 | ||
0002396 | Annite | Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W (2000) Spectroscopic and structural properties of synthetic micas on the annite-siderophyllite binary: Synthesis, crystal structure refinement, Mossbauer, and infrared spectroscopy American Mineralogist 85 449-465 | 2000 | 0 | 293 | ||
0002397 | Annite | Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W (2000) Spectroscopic and structural properties of synthetic micas on the annite-siderophyllite binary: Synthesis, crystal structure refinement, Mossbauer, and infrared spectroscopy American Mineralogist 85 449-465 | 2000 | 0 | 293 | ||
0002398 | Annite | Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W (2000) Spectroscopic and structural properties of synthetic micas on the annite-siderophyllite binary: Synthesis, crystal structure refinement, Mossbauer, and infrared spectroscopy American Mineralogist 85 449-465 | 2000 | 0 | 293 | ||
0002399 | Annite | Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W (2000) Spectroscopic and structural properties of synthetic micas on the annite-siderophyllite binary: Synthesis, crystal structure refinement, Mossbauer, and infrared spectroscopy American Mineralogist 85 449-465 | 2000 | 0 | 293 | ||
0002929 | Annite | Redhammer G J, Roth G (2002) Single-crystal structure refinements and crystal chemistry of synthetic trioctahedral micas KM3(Al,Si)4O10(OH)2, where M = Ni, Mg, Co, Fe, Al American Mineralogist 87 1464-1476 | 2002 | 0 | 293 | ||
0002930 | Annite | Redhammer G J, Roth G (2002) Single-crystal structure refinements and crystal chemistry of synthetic trioctahedral micas KM3(Al,Si)4O10(OH)2, where M = Ni, Mg, Co, Fe, Al American Mineralogist 87 1464-1476 | 2002 | 0 | 293 | ||
0004299 | Annite | Laurora A, Brigatti M F, Mottana A, Malferrari D, Caprilli E (2007) Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy) American Mineralogist 92 468-480 | 2007 | Mt. Sassetto, Tolfa district, Latium, Italy | 0 | 293 | |
0004300 | Annite | Laurora A, Brigatti M F, Mottana A, Malferrari D, Caprilli E (2007) Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy) American Mineralogist 92 468-480 | 2007 | Mt. Sassetto, Tolfa district, Latium, Italy | 0 | 293 | |
0004301 | Annite | Laurora A, Brigatti M F, Mottana A, Malferrari D, Caprilli E (2007) Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy) American Mineralogist 92 468-480 | 2007 | Mt. Sassetto, Tolfa district, Latium, Italy | 0 | 293 | |
0005541 | Annite | Drabek M, Rieder M, Viti C, Weiss Z, Fryda J (1998) Hydrothermal synthesis of a Cs ferruginous trioctahedral mica The Canadian Mineralogist 36 755-761 | 1998 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
10.264 Å | (100) |
3.380 Å | (80) |
2.654 Å | (70) |
2.465 Å | (40) |
1.556 Å | (40) |
2.199 Å | (20) |
1.692 Å | (20) |
Comments:
Synthetic material, 1M polytype.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 3a: Earth’s earliest Hadean crust | >4.50 |
8 : Mafic igneous rocks | |
9 : Lava/xenolith minerals (hornfels, sanidinite facies) | |
Stage 4a: Earth’s earliest continental crust | >4.4-3.0 |
19 : Granitic intrusive rocks | |
20 : Acidic volcanic rocks | |
High-𝑇 alteration and/or metamorphism | |
31 : Thermally altered carbonate, phosphate, and iron formations | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
34 : Complex granite pegmatites | |
35 : Ultra-alkali and agpaitic igneous rocks | |
Stage 5: Initiation of plate tectonics | <3.5-2.5 |
40 : Regional metamorphism (greenschist, amphibolite, granulite facies) |
Geological Setting:
Mg-low igneous and metamorphic rocks; associated minerals at Rockport, MA, USA.
Type Occurrence of Annite
Geological Setting of Type Material:
Granite
Other Language Names for Annite
Relationship of Annite to other Species
Member of:
Other Members of this group:
Eastonite | KMg2Al(Al2Si2O10)(OH)2 | Mon. |
Fluorannite | KFe2+3(Si3Al)O10F2 | Mon. 2/m : B2/m |
Fluorophlogopite | KMg3(Si3Al)O10F2 | Mon. 2/m : B2/m |
Fluorotetraferriphlogopite | KMg3(Fe3+Si3O10)F2 | Mon. 2/m : B2/m |
Oxyphlogopite | K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2 | Mon. 2/m : B2/m |
Phlogopite | KMg3(AlSi3O10)(OH)2 | Mon. 2/m : B2/m |
Siderophyllite | KFe2+2Al(Al2Si2O10)(OH)2 | Mon. |
Tetraferriannite | KFe2+3(Si3Fe3+)O10(OH)2 | Mon. 2/m : B2/m |
Tetraferriphlogopite | KMg3(Fe3+Si3O10)(OH,F)2 | Mon. 2/m : B2/m |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
69 photos of Annite associated with Albite | Na(AlSi3O8) |
45 photos of Annite associated with Quartz | SiO2 |
43 photos of Annite associated with Microcline | K(AlSi3O8) |
21 photos of Annite associated with Almandine | Fe2+3Al2(SiO4)3 |
19 photos of Annite associated with Sodalite | Na4(Si3Al3)O12Cl |
18 photos of Annite associated with Pyrite | FeS2 |
16 photos of Annite associated with Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
14 photos of Annite associated with Zircon | Zr(SiO4) |
12 photos of Annite associated with Chamosite | (Fe2+)5Al(Si,Al)4O10(OH,O)8 |
12 photos of Annite associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
Related Minerals - Strunz-mindat Grouping
9.EC. | Balestraite | KLi2V5+Si4O12 |
9.EC. | Meifuite | KFe6(Si7Al)O19(OH)4Cl2 |
9.EC.05 | Minnesotaite | Fe2+3Si4O10(OH)2 |
9.EC.05 | Talc | Mg3Si4O10(OH)2 |
9.EC.05 | Willemseite | Ni3Si4O10(OH)2 |
9.EC.9.EC. | Voloshinite | Rb(LiAl1.5◻0.5)(Al0.5Si3.5)O10F2 |
9.EC.10 | Ferripyrophyllite | Fe3+Si2O5(OH) |
9.EC.10 | Pyrophyllite | Al2Si4O10(OH)2 |
9.EC.10 | Luanshiweiite | KLiAl1.5(Si3.5Al0.5)O10(OH)2 |
9.EC.10 | Fluorluanshiweiite | KLiAl1.5(Si3.5Al0.5)O10F2 |
9.EC.10 | Manganiceladonite | K(MgMn3+◻)(Si4O10)(OH)2 |
9.EC.10 | Garmite | CsLiMg2(Si4O10)F2 |
9.EC.10 | Gorbunovite | CsLi2(Ti,Fe)Si4O10(F,OH,O)2 |
9.EC.15 | Boromuscovite | KAl2(BSi3O10)(OH)2 |
9.EC.15 | Celadonite | K(MgFe3+◻)(Si4O10)(OH)2 |
9.EC.15 | Chernykhite | (Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2 |
9.EC.15 | Montdorite | (K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4 |
9.EC.15 | Muscovite | KAl2(AlSi3O10)(OH)2 |
9.EC.15 | Nanpingite | CsAl2(AlSi3O10)(OH,F)2 |
9.EC.15 | Paragonite | NaAl2(AlSi3O10)(OH)2 |
9.EC.15 | Roscoelite | K(V3+,Al)2(AlSi3O10)(OH)2 |
9.EC.15 | Tobelite | (NH4,K)Al2(AlSi3O10)(OH)2 |
9.EC.15 | Aluminoceladonite | K(MgAl◻)(Si4O10)(OH)2 |
9.EC.15 | Chromphyllite | K(Cr,Al)2(AlSi3O10)(OH,F)2 |
9.EC.15 | Ferroaluminoceladonite | K(Fe2+Al◻)(Si4O10)(OH)2 |
9.EC.15 | Ferroceladonite | K(Fe2+Fe3+◻)(Si4O10)(OH)2 |
9.EC.15 | Chromceladonite | K(MgCr◻)(Si4O10)(OH)2 |
9.EC.15 | Tainiolite | KLiMg2(Si4O10)F2 |
9.EC.15 | Ganterite | (Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2 |
9.EC.15 | UM1988-22-SiO:AlCaFFeHKLiMg | KLiMgAl2Si3O10F2 |
9.EC.15 | Kreiterite | CsLi2Fe3+(Si4O10)F2 |
9.EC.20 | Ephesite | NaLiAl2(Al2Si2O10)(OH)2 |
9.EC.20 | Hendricksite | KZn3(Si3Al)O10(OH)2 |
9.EC.20 | Masutomilite | (K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2 |
9.EC.20 | Norrishite | KLiMn3+2(Si4O10)O2 |
9.EC.20 | Phlogopite | KMg3(AlSi3O10)(OH)2 |
9.EC.20 | Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
9.EC.20 | Preiswerkite | NaMg2Al(Al2Si2O10)(OH)2 |
9.EC.20 | Siderophyllite | KFe2+2Al(Al2Si2O10)(OH)2 |
9.EC.20 | Tetraferriphlogopite | KMg3(Fe3+Si3O10)(OH,F)2 |
9.EC.20 | Fluorotetraferriphlogopite | KMg3(Fe3+Si3O10)F2 |
9.EC.20 | Wonesite | (Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4 |
9.EC.20 | Eastonite | KMg2Al(Al2Si2O10)(OH)2 |
9.EC.20 | Tetraferriannite | KFe2+3(Si3Fe3+)O10(OH)2 |
9.EC.20 | Trilithionite | K(Li1.5Al1.5)(AlSi3O10)(F,OH)2 |
9.EC.20 | Fluorannite | KFe2+3(Si3Al)O10F2 |
9.EC.20 | Shirokshinite | K(NaMg2)(Si4O10)F2 |
9.EC.20 | Shirozulite | KMn2+3(Si3Al)O10(OH)2 |
9.EC.20 | Sokolovaite | CsLi2Al(Si4O10)F2 |
9.EC.20 | Aspidolite | NaMg3(AlSi3O10)(OH)2 |
9.EC.20 | Fluorophlogopite | KMg3(Si3Al)O10F2 |
9.EC.20 | UM2004-49-SiO:AlCsFHKLi | (Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2 |
9.EC.20 | Suhailite | (NH4)Fe2+3(AlSi3O10)(OH)2 |
9.EC.20 | Yangzhumingite | KMg2.5(Si4O10)F2 |
9.EC.20 | Orlovite | KLi2Ti(Si4O10)OF |
9.EC.20 | Oxyphlogopite | K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2 |
9.EC.20 | Chloroferrokinoshitalite | (Ba,K)(Fe2+,Mg)3(Al2Si2O10)(Cl,OH,F)2 |
9.EC.22 | Pimelite | Ni3Si4O10(OH)2 · 4H2O |
9.EC.30 | Chlorophaeite | (Ca,Mg,Fe)2Fe2Si4O13 · 10H2O |
9.EC.30 | Margarite | CaAl2(Al2Si2O10)(OH)2 |
9.EC.35 | Anandite | (Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2 |
9.EC.35 | Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
9.EC.35 | Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
9.EC.35 | Kinoshitalite | (Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2 |
9.EC.35 | Ferrokinoshitalite | (Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2 |
9.EC.35 | Oxykinoshitalite | (Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2 |
9.EC.35 | Fluorokinoshitalite | BaMg3(Al2Si2O10)F2 |
9.EC.40 | Beidellite | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
9.EC.40 | Kurumsakite | (Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?) |
9.EC.40 | Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
9.EC.40 | Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
9.EC.40 | Volkonskoite | Ca0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O |
9.EC.40 | Yakhontovite | (Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2O |
9.EC.45 | Hectorite | Na0.3(Mg,Li)3(Si4O10)(F,OH)2 |
9.EC.45 | Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
9.EC.45 | Sauconite | Na0.3Zn3((Si,Al)4O10)(OH)2 · 4H2O |
9.EC.45 | Spadaite | MgSiO2(OH)2 · H2O (?) |
9.EC.45 | Stevensite | (Ca,Na)xMg3-x(Si4O10)(OH)2 |
9.EC.45 | Swinefordite | Li(Al,Li,Mg)3((Si,Al)4O10)2(OH,F)4 · nH2O |
9.EC.45 | Zincsilite | Zn3Si4O10(OH)2 · 4H2O (?) |
9.EC.45 | Ferrosaponite | Ca0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O |
9.EC.45 | Hanjiangite | Ba2CaV3+Al(H2AlSi3O12)(CO3)2F |
9.EC.50 | Vermiculite | Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O |
9.EC.52 | Tarasovite | near NaKAl11Si13O40(OH)9 · 3H2O |
9.EC.55 | Baileychlore | (Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8 |
9.EC.55 | Chamosite | (Fe2+)5Al(Si,Al)4O10(OH,O)8 |
9.EC.55 | Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
9.EC.55 | Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
9.EC.55 | Franklinfurnaceite | Ca2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8 |
9.EC.55 | Gonyerite | (Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8 |
9.EC.55 | Nimite | (Ni,Mg,Al)6((Si,Al)4O10)(OH)8 |
9.EC.55 | Orthochamosite | (Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8 |
9.EC.55 | Pennantite | Mn2+5Al(AlSi3O10)(OH)8 |
9.EC.55 | Sudoite | Mg2Al3(Si3Al)O10)(OH)8 |
9.EC.55 | Donbassite | Al4.33(Si3Al)O10(OH)8 |
9.EC.55 | Glagolevite | Na(Mg,Al)6(AlSi3O10)(OH,O)8 |
9.EC.55 | Borocookeite | (LiAl4◻)[BSi3O10](OH)8 |
9.EC.60 | Aliettite | Ca0.2Mg6((Si,Al)8O20)(OH)4 · 4H2O |
9.EC.60 | Corrensite | (Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O |
9.EC.60 | Dozyite | Mg7Al2(Al2Si4O15)(OH)12 |
9.EC.60 | Hydrobiotite | K(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2O |
9.EC.60 | Karpinskite | (Ni,Mg)2Si2O5(OH)2 (?) |
9.EC.60 | Kulkeite | Mg8Al(AlSi7O20)(OH)10 |
9.EC.60 | Lunijianlaite | Li0.7Al6.2(AlSi7O20)(OH,O)10 |
9.EC.60 | Rectorite | (Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O |
9.EC.60 | Saliotite | (Li,Na)Al3(AlSi3O10)(OH)5 |
9.EC.60 | Tosudite | Na0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2O |
9.EC.60 | Brinrobertsite | Na0.3Al4(Si4O10)2(OH)4 · 3.5 H2O |
9.EC.65 | Macaulayite | (Fe,Al)24Si4O43(OH)2 |
9.EC.70 | Burckhardtite | Pb2(Fe3+Te6+)[AlSi3O8]O6 |
9.EC.75 | Ferrisurite | (Pb,Ca)2.4Fe3+2(Si4O10)(CO3)1.7(OH)3 · nH2O |
9.EC.75 | Surite | (Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2 |
9.EC.75 | Niksergievite | (Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 · nH2O |
9.EC.80 | Kegelite | Pb8Al4(Si8O20)(SO4)2(CO3)4(OH)8 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Annite
mindat.org URL:
https://www.mindat.org/min-241.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Annite
Reference List:
Rieder, M., Cavazzini, G., D’Yakonov, Y.S., Frank-Kamenetskii, V.A., Gottardt, G., Guggenheim, S., Koval, P.V., Muller, G., Neiva, A.M.R., Radoslovich, E.W., Robert, J.L., Sassi, F.P., Takeda, H., Weiss, Z., Wones, D.R. (1998) Nomenclature of the micas. The Canadian Mineralogist, 36 (3) 905-912
Localities for Annite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
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Almenningen Quarry, Tvedalen, Larvik, Vestfold, Norway