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Sadanagaite

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Formula:
{Na}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2
The sadanagaite group minerals are defined as with 0,5 < A(Na+K+ 2Ca) where Na or K is dominant, and with 1,5 < C(Al+Fe3++2Ti), where Al or Fe3+ are dominant. The W position may contain (OH),F or Cl.

Sadanagaite is defined with
A position: Na dominant
C2+ position: Mg dominant
C3+ position: Al dominant
W position: (OH) dominant.
System:
Monoclinic
Colour:
black, dark brown
Hardness:
6
Name:
Named for Ryoichi Sadanaga (b. 1920), Professor Emeritus of the University of Tokyo.

Sadanagaite was first described as a new silica-poor amphibole(IMA1980-027), published by Shimazaki et.al(1984). It was redefined in the 1997 amphibole nomenclature (Leake et.al 1997). The original definition of sadanagaite has K>Na in the A position, this was reversed in 1997. It should also be noted that there is a probable typo in the 1997 nomenclature report, defining sadanagaite with Fe3+>Al in the formula, which has led some authors to use the term aluminosadanagaite (see Nikandrov et.al. 2001).

Sadanagaite was again redefined in the 2012 amphibole nomenclature to be the Na, Mg and Al dominant member of the sadanagaite group. (Hawthorne et al. 2012)

Consequently, the material originally described as sadanagaite in 1984, became potassic-sadanagaite in 1997 and potassic-ferro-sadanagaite in 2012.

Na and Fe2+ dominant material described as sadanagaite between 1997 and 2012 are now (2012) ferro-sadanagaite.

The material described by Banno et.al (2003) as magnesiosadanagaite was defined as sadanagaite in the 2012 ampibole nomenclature
This page provides mineralogical data about Sadanagaite.

Classification of Sadanagaite

Redefined Approved
8/F.10-175
9.DE.15

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles
16.11.16

16 : Silicates Containing Aluminum and other Metals
11 : Aluminosilicates of Ca and Mg with or without alkalis
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http://www.mindat.org/min-3499.html
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First Recorded Occurrence of Sadanagaite

Year of Discovery:
1984

Physical Properties of Sadanagaite

Vitreous
Colour:
black, dark brown
Streak:
pale brown
Hardness (Mohs):
6

Crystallography of Sadanagaite

Crystal System:
Monoclinic
Cell Parameters:
a = 9.92Å, b = 18.03Å, c = 5.35Å
β = 105.3°
Ratio:
a:b:c = 0.55 : 1 : 0.297
Unit Cell Volume:
V 922.97 ų (Calculated from Unit Cell)

Optical Data of Sadanagaite

Type:
Biaxial (-)
RI values:
nα = 1.673 nβ = 1.684 nγ = 1.697
2V:
Measured: 80° to 90°, Calculated: 86°
Max Birefringence:
δ = 0.024
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v perceptible

Chemical Properties of Sadanagaite

Formula:
{Na}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2

The sadanagaite group minerals are defined as with 0,5 < A(Na+K+ 2Ca) where Na or K is dominant, and with 1,5 < C(Al+Fe3++2Ti), where Al or Fe3+ are dominant. The W position may contain (OH),F or Cl.

Sadanagaite is defined with
A position: Na dominant
C2+ position: Mg dominant
C3+ position: Al dominant
W position: (OH) dominant.
Essential elements:
All elements listed in formula:
Common Impurities:
Mn

Relationship of Sadanagaite to other Species

Other Members of Group:
Ferri-fluoro-sadanagaite{Na}{Ca2}{Mg3Fe23+}(Al3Si5O22)F2
Ferri-sadanagaite{Na}{Ca2}{Mg3Fe23+}(Al3Si5O22)(OH)2
Ferro-ferri-fluoro-sadanagaite{Na}{Ca2}{Fe32+Fe23+}(Al3Si5O22)F2
Ferro-ferri-sadanagaiteNaCa2(Fe32+Fe23+)(Al3Si5O22)(OH)2
Ferro-fluoro-sadanagaite{Na}{Ca2}{Fe32+Al2}(Al3Si5O22)F2
Ferro-sadanagaite{Na}{Ca2}{Fe3Al2}(Al3Si5O22)(OH)2
Fluoro-sadanagaite{Na}{Ca2}{Mg3Al2}(Al3Si5O22)F2
Potassic-chloro-sadanagaite{K}{Ca2}{Mg3Al2}(Al3Si5O22)Cl2
Potassic-ferri-sadanagaite{K}{Ca2}{Fe32+Fe23+}(Al3Si5O22)(OH)2
Potassic-ferro-chloro-sadanagaite{K}{Ca2}{Fe32+Al2}(Al3Si5O22)Cl2
Potassic-ferro-ferri-sadanagaite{K}{Ca2}{Fe32+Fe23+}(Al3Si5O22)(OH)2
Potassic-ferro-sadanagaite{K}{Ca2}{Fe32+Al2}(Al3Si5O22)(OH)2
Potassic-sadanagaite{K}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2
9.DE.05Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
9.DE.05Cummingtonite☐{Mg2}{Mg5}(Si8O22)(OH)2
9.DE.05Clino-holmquistite Root Name☐{Li2}{Z32+Z23+}(Si8O22)(OH,F,Cl)2
9.DE.05Grunerite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
9.DE.05Manganocummingtonite☐{Mn22+}{Mg5}(Si8O22)(OH)2
9.DE.05Manganogrunerite☐{Mn22+}{Fe52+}(Si8O22)(OH)2
9.DE.05Permanganogrunerite☐{Mn22+}{Mn52+}(Si8O22)(OH)2
9.DE.05Ferro-fluoro-pedrizite{Na}{Li2}{Fe2Al2Li}(Al2Si6O22)F2
9.DE.05Ferri-fluoro-leakeite{Na}{Na2}{Mg2Fe23+Li}(Si8O22)F2
9.DE.10Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
9.DE.10Ferri-tschermakite☐{Ca2}{Mg3Fe23+}(Al2Si6O22)(OH)2
9.DE.10Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
9.DE.10Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
9.DE.10Ferro-tschermakite☐{Ca2}{Fe32+Al2}(Al2Si6O22)(OH)2
9.DE.10Joesmithite{Pb}{Ca2}{Mg3Fe23+}(Be2Si6O22)(OH)2
9.DE.10Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
9.DE.10Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
9.DE.10Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
9.DE.10CannilloiteCa(Ca2)(Mg4Al)(Al3Si5O22)(OH)2
9.DE.10Fluoro-cannilloite{Ca}{Ca2}{Mg4Al}(Al3Si5O22)(F,OH)2
9.DE.10Parvo-manganotremolite☐{CaMn2+}{Mg5}(Si8O22)(OH)2
9.DE.10Fluoro-tremolite☐{Ca2}{Mg5}(Si8O22)F2
9.DE.10Potassic-fluoro-pargasite{K}{Ca2}{Mg4Al}(Al2Si6O22)F2
9.DE.15Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
9.DE.15Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
9.DE.15Ferro-kaersutite{Na}{Ca2}{Fe32+AlTi}(Al2Si6O22)O2
9.DE.15Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
9.DE.15Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
9.DE.15Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
9.DE.15Magnesio-hastingsite{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2
9.DE.15Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
9.DE.15Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
9.DE.15Potassic-ferro-ferri-sadanagaite{K}{Ca2}{Fe32+Fe23+}(Al3Si5O22)(OH)2
9.DE.15Potassic-sadanagaite{K}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2
9.DE.15Potassic-pargasite{K}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
9.DE.15Potassic-ferro-sadanagaite{K}{Ca2}{Fe32+Al2}(Al3Si5O22)(OH)2
9.DE.15Fluoro-magnesio-hastingsite{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)F2
9.DE.15Potassic-fluoro-hastingsite{K}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(F,OH)2
9.DE.15Potassic-chloro-hastingsite{K}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(Cl,OH)2
9.DE.15Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
9.DE.15Parvo-mangano-edenite{Na}{CaMn2+}{Mg5}(AlSi7O22)(OH)2
9.DE.15Potassic-chloro-pargasite{K}{Ca2}{Mg4Al}(Al2Si6O22)(Cl,OH)2
9.DE.15Potassic-ferro-chloro-edenite{K}{Ca2}{Fe52+}(AlSi7O22)(Cl,OH)2
9.DE.15Potassic-magnesio-hastingsite{K}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2
9.DE.15Potassic-ferro-pargasite{K}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
9.DE.15Chromio-pargasite{Na}{Ca2}{Mg4Cr3+}(Al2Si6O22)(OH)2
9.DE.20Ferro-taramiteNa(CaNa)(Fe32+Al2)(Al2Si6O22)(OH)2
9.DE.20Barroisite☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-barroisite☐(CaNa)(Fe32+Fe23+)(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-winchite☐[CaNa][Fe42+(Fe3+,Al)]Si8O22(OH)2
9.DE.20Ferri-barroisite☐(CaNa)(Mg3Fe23+)(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-taramiteNa(CaNa)(Fe32+Fe23+)(Al2Si6O22)(OH)2
9.DE.20Ferro-ferri-katophoriteNaCaNaFe42+(Fe3+)[(AlSi7)O22](OH)2
9.DE.20Ferro-barroisite☐{CaNa}{Fe32+Al2}(AlSi7O22)(OH)2
9.DE.20Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
9.DE.20Ferro-winchite ☐{CaNa}{Fe42+Al}(Si8O22)(OH)2
9.DE.20Ferro-katophorite{Na}{CaNa}{Fe42+Al}[(AlSi7)O22](OH)2
9.DE.20Ferri-taramiteNa(CaNa)(Mg3Fe23+)(Al2Si6O22)(OH)2
9.DE.20Magnesiotaramite{Na}{CaNa}{Mg3AlFe3+}(Al2Si6O22)(OH)2
9.DE.20Richterite{Na}{CaNa}{Mg5}(Si8O22)(OH)2
9.DE.20Winchite☐{CaNa}{Mg4Al}(Si8O22)(OH)2
9.DE.20Taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)(OH)2
9.DE.20Fluoro-richterite{Na}{CaNa}{Mg5}(Si8O22)(F,OH)2
9.DE.20Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
9.DE.20Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2
9.DE.20Potassic-richteriteK[CaNa][Mg5]Si8O22(OH)2
9.DE.20Ferri-ghoseite☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
9.DE.20Ferri-winchite☐[CaNa][Mg4(Fe3+,Al)]Si8O22(OH)2
9.DE.20Fluoro-taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)F2
9.DE.25Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
9.DE.25EckermanniteNaNa2(Mg4Al}Si8O22(OH)2
9.DE.25Ferro-eckermanniteNaNa2(Fe2+,4Al)Si8O22(OH)2
9.DE.25Ferro-glaucophane◻[Na2][Fe32+Al2]Si8O22(OH)2
9.DE.25Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
9.DE.25Potassic-mangani-leakeite[(Na,K)][Na2][Mg2Mn23+Li]Si8O22(OH)2
9.DE.25Mangano-ferri-eckermannite[Na][Na2][Mn42+(Fe3+)]Si8O22(OH)2
9.DE.25Ferri-leakeite[Na][Na2][Mg2Fe23+Li]Si8O22(OH)2
9.DE.25Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
9.DE.25Magnesio-arfvedsonite{Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2
9.DE.25NybøiteNaNa2(Mg3Al2)(AlSi7O22)(OH)2
9.DE.25Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
9.DE.25Mangano-mangani-ungarettiiteNaNa2(Mn22+Mn33+)(Si8O22)O2
9.DE.25Ferro-ferri-nybøiteNaNa2[(Fe32+,Mg)Fe23+](AlSi7O22)(OH)2
9.DE.25Clino-ferro-ferri-holmquistite◻{Li2}{Fe32+Fe23+}(Si8O22)(OH)2
9.DE.25Ferri-nybøiteNaNa2(Mg3Fe23+](AlSi7O22)(OH)2
9.DE.25Ferro-ferri-leakeite[Na][Na2][Fe22+Fe23+Li]Si8O22(OH)2
9.DE.25Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe22+Fe23+Li)(Si8O22)(F)2
9.DE.25Sodic-ferri-clinoferroholmquistiteNa0.5{Li2}{Fe32+Fe23+}(Si8O22)(OH)2
9.DE.25Magnesio-fluoro-arfvedsonite[Na][Na2][Mg4Fe3+][Si8O22](F,OH)2
9.DE.25Ferri-pedrizite[Na][Li2][Mg2Fe23+Li]Si8O22(OH)2
9.DE.25Potassic-ferri-leakeite[K][Na2][Mg2Fe23+Li]Si8O22(OH)2
9.DE.25Fluoro-nybøiteNaNa2(Mg3Al2)(AlSi7O22)(F,OH)2
9.DE.25Mangani-dellaventuraite{Na}{Na2}{MgMn23+LiTi4+}Si8O22O2
9.DE.25Fluoro-pedriziteNaLi2(Mg2Al2Li)(Si8O22)F2
9.DE.25Potassic-arfvedsonite[(K,Na)][Na2][Fe42+Fe3+]Si8O22(OH)2
9.DE.25Mangani-obertiiteNa(Na2)(Mg3Mn3+Ti)(Si8O22)O2
9.DE.25Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
9.DE.25Ferro-ferri-pedrizite[Na][Li2][Fe22+Fe23+Li]Si8O22(OH)2
9.DE.25Potassic-magnesio-arfvedsonite[K][Na2][Mg4Fe3+]Si8O22(OH)2
9.DE.25PedriziteNaLi2(LiMg2Al2)(Si8O22)(OH)2
9.DE.25Ferro-pedriziteNaLi2(Fe22+Al2Li)Si8O22(OH)2
9.DE.25Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2
9.DE.25Ferro-ferri-obertiiteNaNa2(Fe32+Fe3+Ti)Si8O22O2
16.11.1MadisoniteCa2Mg2Al2Si3O13 or near
16.11.3Alumino-magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
16.11.4Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
16.11.5ClintoniteCa(Mg,Al)3(Al3SiO10)(OH)2
16.11.6JuaniteCa10Mg4Al2Si11O39 · 4H2O or near
16.11.7Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
16.11.8TacharaniteCa12Al2Si18O51 · 18H2O
16.11.9Aluminobarroisite☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
16.11.10Taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)(OH)2
16.11.12Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
16.11.13Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
16.11.14Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
16.11.15Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
16.11.15Magnesiosadanagaite{Na}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2

Other Names for Sadanagaite

Name in Other Languages:
German:Sadanagait
Japanese:定永閃石
Simplified Chinese:钠钙镁闪石
Spanish:Sadanagaita
Traditional Chinese:鈉鈣鎂閃石

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.

References for Sadanagaite

Reference List:
Canadian Mineralogist (1997) 35: 219.

Hawthorne, Frank C., and Roberta Oberti (2006) On the classification of amphiboles: Canadian Mineralogist: 44(1): 1-21.

Michiaki Bunno, Hidehiko Shmazaki, Tohru Ozawa: (1984): Sadanagaite and magnesio-sadanagaite, new silica-poor members of calcic amphibole from Japan, American Mineralogist, Volume 69, pages 465-471

CNMMN amphibole subcommittee, Bernard E, Leake (Chairman) et al. (1997): Nomenclature of amphiboles: report of the subcommittee on amphiboles of the International Mineralogical Association, Commission on new minerals and mineral names. The Canadian Mineralogist Vol. 35, pp. 219-246

Yasuyuki Banno, Ritsuro Miyawaki, Satoshi Matsubara, Kuniaki Makino, Michiaki Bunno, Shigeo Yamada, Toshiaki Kamiya (2004): Magnesiosadanagaite, a new member of the amphibole group from Kasuga-mura, Gifu Prefecture, central Japan, European Journal of Mineralogy, vol 16, pp 177-183

S. N. NIKANDROV. Yu. S. KOBYASHEV. P. M. VAL1ZER (2001): SADANAGAITE SERIES
IN IL'MENOGORSKY ALKALINE COMPLEX (THE URALS. RUSSIA), Proc. RMS, N 1, 2001

Frank C. Hawthorne, Roberta Oberti, George E. Harlow, Walter V. Maresch, Robert F. Martin, John C. Schumacer, Mark D. Welch (2012): Nomenclature of the amphibole supergroup, American Mineralogist, Volume 97, pages 2031–2048



Internet Links for Sadanagaite

Localities for Sadanagaite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Burma (Myanmar)
 
  • Mandalay Division
    • Pyin-Oo-Lwin District
Frank C. Hawthorne, George E. Harlow (2008): THE CRYSTAL CHEMISTRY OF Al-RICH AMPHIBOLES: SADANAGAITE AND POTASSIC-FERRISADANAGAITE, The Canadian Mineralogist Vol. 46, pp. 151-162
Finland
 
  • Lapland Region
    • Enontekiö
Sipilä, Pekka 1992. The Caledonian Halt-Ridnitsohkka igneous complex in Lapland. Geological Survey of Finland Bulletin 362, 75 p. 23 app. pages
Japan
 
  • Ehime Prefecture
    • Inland Sea (Setonaikai)
Shimazaki, H., Bunno, M., & Ozawa, T. (1984). Sadanagaite and magnesio-sadanagaite, new silica-poor members of calcific amphibole from Japan. Am. Mineral, 69, 465-471.
Shimazaki, H., Bunno, M., & Ozawa, T. (1984). Sadanagaite and magnesio-sadanagaite, new silica-poor members of calcific amphibole from Japan. Am. Mineral, 69, 465-471.
  • Honshu Island
    • Chubu Region
      • Gifu Prefecture
        • Ibigawa-cho
          • Kasuga-mura
Banno, Y., Miyawaki, R., Matsubara, S., Makino, K., Bunno, M., Yamada, S. and Kamiya, T. (2004): Magnesiosadanagaite, a new member of the amphibole group from Kasuga-mura, Gifu prefecture, central Japan., European Journal of Mineralogy: 16(1): 177-183.; Banno Y, Miyawaki R, Kogure T, Matsubara S, Kamiya T, Yamada S (2005) Aspidolite, the Na analogue of phlogopite, from Kasuga-mura, Gifu Prefecture, central Japan, description and structural data. Mineralogical Magazine 69, 1047-1057
Alfredo Petrov (2003): Mindat Forum
        • Neo-mura
Sawaki, T. (1989) Sadanagaite and subsilicic ferroan pargasite from thermally metamorphosed rocks in the Nogo-Hakusan area, central Japan, Mineralogical Magazine, 53, 99 106.
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Ilmen Mts
Nikandrov S. N., Kobyashev Yu. S., Valizer P. M.,(2001) Sadanagaite series in Il'menogorsky alkaline complex (the Urals, Russia), Zapiski RMO (Proceedings of the Russian Mineralogical Society) Part 130 Issue 1 pp 95-99
Slovakia
 
  • Trenčín Region
    • Trenčín Co.
      • Veľká Hradná
Ozdín D. & Rojkovič I., 2006: Magnetitová mineralizácia na lokalite Železník v Považskom Inovci. Mineralia Slovaca, 38, 2, 109-123.
UK
 
  • England
    • Cornwall
      • St Just District
        • St Just
          • Botallack
Material from this locality has been renamed ferro-sadanagaite; Please do not reenter the old name here.
USA
 
  • North Carolina
    • Haywood Co.
Anderson,Eric Douglas and Moecher,David P.,(2009) Formation of high -pressure metabasites in the southern Appalachian Blue Ridge via taconic continental subduction beneath the Laurentian margin: Tectonic Vol.28 Issue 5,Oct 2009
Mineral and/or Locality  
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