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Rectorite

A valid IMA mineral species - grandfathered

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Photos of Rectorite (10)

Rectorite Gallery Search Photos of Rectorite

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Rectorite

Blue Mountain Mining District, Marble Township, Garland County, Arkansas, USA

Rectorite

Beatrix Mine, Welkom, Matjhabeng Local Municipality, Lejweleputswa District Municipality, Free State, South Africa

Rectorite

Hanaoka mine, Odate, Akita Prefecture, Japan

Rectorite

Blue Mountain Mining District, Marble Township, Garland County, Arkansas, USA

Rectorite

Beatrix Mine, Welkom, Matjhabeng Local Municipality, Lejweleputswa District Municipality, Free State, South Africa

Rectorite

Hanaoka mine, Odate, Akita Prefecture, Japan

Rectorite

Blue Mountain Mining District, Marble Township, Garland County, Arkansas, USA

Rectorite

Beatrix Mine, Welkom, Matjhabeng Local Municipality, Lejweleputswa District Municipality, Free State, South Africa

Hide all sections | Show all sections

About RectoriteHide

Elias W. Rector

Formula:

(Na,Ca)Al₄((Si,Al)₈O₂₀)(OH)₄ · 2H₂O

Colour:

White to light brown

Lustre:

Waxy, Greasy, Pearly, Earthy

Hardness:

0½ - 1

Specific Gravity:

2.34 (Calculated)

Crystal System:

Monoclinic

Member of:

Mixed-layer clay minerals Group > Clay minerals Group

Name:

Named in 1891 by Richard Newman Brackett and John Francis Williams in honor of Colonel Elias William Rector (11 June 1847(49), Little Rock, Arkansas, USA - 29 January 1917, Hot Spring, Arkansas, USA), a politician (Speaker of the Arkansas House of Representatives) and attorney in Hot Springs, Arkansas, who supported the formation of the Arkansas Geological Survey.

Type Locality:

ⓘ Blue Mountain Mining District, Marble Township, Garland County, Arkansas, USA

A 1:1 regular interstratification of muscovite/illite (dioctahedral mica) and montmorillonite (dioctahedral smectite). Frequently called "rectorite-K" to distinguish it from regularly interstratified paragonite/montmorillonite = "rectorite-Na".

Unique IdentifiersHide

Mindat ID:

3377

Long-form identifier:

mindat:1:1:3377:6

GUID
(UUID V4):

708ed323-c7c2-425c-b57a-acde15de76b0

IMA Classification of RectoriteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

IMA Formula:

(Na,Ca)Al₄(Si,Al)₈O₂₀(OH)₄ · 2H₂O

First published:

1891

Type description reference:

Brackett, R.N., Williams, J.F. (1891) Newtonite and rectorite - two new minerals of the kaolinite group. American Journal of Science: 142: 11-21.

Classification of RectoriteHide

Strunz-mindat (2024):

9.EC.60

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets

Dana 8th ed.:

71.4.2.7

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
4 : Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra

Hey's CIM Ref.:

16.2.9

16 : Silicates Containing Aluminum and other Metals
2 : Aluminosilicates of Na

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Rec	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of RectoriteHide

Lustre:

Waxy, Greasy, Pearly, Earthy

Transparency:

Translucent

Colour:

White to light brown

Hardness:

0½ - 1 on Mohs scale

Tenacity:

Flexible

Cleavage:

Perfect
On {001}

Density:

2.34 g/cm³ (Calculated)

Optical Data of RectoriteHide

Type:

Biaxial (-)

RI values:

n_α = 1.519 n_β = 1.550 n_γ = 1.559

2V:

Measured: 5° to 20°, Calculated: 54°

Max Birefringence:

δ = 0.040

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Low

Dispersion:

r > v

Chemistry of RectoriteHide

Mindat Formula:

(Na,Ca)Al₄((Si,Al)₈O₂₀)(OH)₄ · 2H₂O

Elements listed:

Al, Ca, H, Na, O, Si - search for minerals with similar chemistry

Common Impurities:

Fe,K

Crystallography of RectoriteHide

Crystal System:

Monoclinic

Cell Parameters:

a = 5.13 Å, b = 8.88 Å, c = 23.85 Å
β = 96.3°

Ratio:

a:b:c = 0.578 : 1 : 2.686

Unit Cell V:

1,079.91 Å³ (Calculated from Unit Cell)

Comment:

Point Group: n.d.; Space Group: n.d.

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
23.8 Å	(100)
11.9 Å	(65)
3.40 Å	(16)
2.971 Å	(16)
1.970 Å	(12)
4.75 Å	(10)
1.827 Å	(4)

Comments:

air dried sample; after heating to 600ºC, d(001) = 19.3 Å; after ethylene glycol treatment d(001) = 26.8 Å

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere	>4.45
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)
Near-surface Processes
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)
Stage 7: Great Oxidation Event	<2.4
47a : [Near-surface hydration of prior minerals]

Type Occurrence of RectoriteHide

Type Locality:

ⓘ Blue Mountain Mining District, Marble Township, Garland County, Arkansas, USA

Place of Conservation of Type Material:

National Museum of Natural History, Washington, D.C., USA, 80607.

Reference:

Brackett, R.N., Williams, J.F. (1891) Newtonite and rectorite - two new minerals of the kaolinite group. American Journal of Science: 142: 11-21.

Download:

http://rruff.info/rruff_1.0/uploads/American_journal_of_science_142_1891_11.pdf

Other Language Names for RectoriteHide

German:Rectorit

Simplified Chinese:累托石

Spanish:Rectorita

Traditional Chinese:累托石

Varieties of RectoriteHide

Rectorite-K	A 1:1 regular interstratification of muscovite/illite (dioctahedral mica) and montmorillonite (dioctahedral smectite) is frequently called "rectorite-K" to distinguish it from regularly interstratified paragonite/montmorillonite = "rectorite-Na".
Rectorite-Na	A regularly interstratified paragonite/montmorillonite. Compare Rectorite-K.

Relationship of Rectorite to other SpeciesHide

Member of:

Mixed-layer clay minerals Group > Clay minerals Group

Other Members of this group:

Aliettite	Ca_0.2Mg₆((Si,Al)₈O₂₀)(OH)₄ · 4H₂O	Mon.
Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O	Orth.
Glaucony	The term glaucony was defined first by Odin and Létolle (1980) for green minerals in marine sediments formed by ...
Tosudite	Na_0.5(Al,Mg)₆((Si,Al)₈O₁₈)(OH)₁₂ · 5H₂O	Mon. 2 : B2

Common AssociatesHide

Associated Minerals Based on Photo Data:

5 photos of Rectorite associated with Quartz

SiO₂

Related Minerals - Strunz-mindat Grouping Hide

9.EC.	Balestraite	KLi₂V⁵⁺Si₄O₁₂	Mon. 2 : B2
9.EC.	Meifuite	KFe₆(Si₇Al)O₁₉(OH)₄Cl₂	Tric. 1 : P1
9.EC.05	Minnesotaite	Fe²⁺₃Si₄O₁₀(OH)₂	Tric. 1 : P1
9.EC.05	Talc	Mg₃Si₄O₁₀(OH)₂	Tric. 1 : P1
9.EC.05	Willemseite	Ni₃Si₄O₁₀(OH)₂	Mon.
9.EC.9.EC.	Voloshinite	Rb(LiAl_1.5◻_0.5)(Al_0.5Si_3.5)O₁₀F₂	Mon. 2/m : B2/b
9.EC.10	Ferripyrophyllite	Fe³⁺Si₂O₅(OH)	Mon. 2/m
9.EC.10	Pyrophyllite	Al₂Si₄O₁₀(OH)₂	Tric. 1
9.EC.10	Luanshiweiite	KLiAl_1.5(Si_3.5Al_0.5)O₁₀(OH)₂	Mon. 2/m : B2/b
9.EC.10	Fluorluanshiweiite	KLiAl_1.5(Si_3.5Al_0.5)O₁₀F₂	Mon. 2/m : B2/m
9.EC.10	Manganiceladonite	K(MgMn³⁺◻)(Si₄O₁₀)(OH)₂	Mon.
9.EC.10	Garmite	CsLiMg₂(Si₄O₁₀)F₂	Mon.
9.EC.10	Gorbunovite	CsLi₂(Ti,Fe)Si₄O₁₀(F,OH,O)₂	Mon.
9.EC.15	Boromuscovite	KAl₂(BSi₃O₁₀)(OH)₂	Mon. 2/m
9.EC.15	Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Chernykhite	(Ba,Na)(V³⁺,Al,Mg)₂((Si,Al)₄O₁₀)(OH)₂	Mon.
9.EC.15	Montdorite	(K,Na)₂(Fe²⁺,Mn²⁺,Mg)₅(Si₄O₁₀)₂(OH,F)₄	Mon. 2/m : B2/m
9.EC.15	Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.15	Nanpingite	CsAl₂(AlSi₃O₁₀)(OH,F)₂	Mon. 2/m : B2/b
9.EC.15	Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂	Mon.
9.EC.15	Roscoelite	K(V³⁺,Al)₂(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.15	Tobelite	(NH₄,K)Al₂(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Aluminoceladonite	K(MgAl◻)(Si₄O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Chromphyllite	K(Cr,Al)₂(AlSi₃O₁₀)(OH,F)₂	Mon. 2/m : B2/b
9.EC.15	Ferroaluminoceladonite	K(Fe²⁺Al◻)(Si₄O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Ferroceladonite	K(Fe²⁺Fe³⁺◻)(Si₄O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Chromceladonite	K(MgCr◻)(Si₄O₁₀)(OH)₂	Mon. 2 : B2
9.EC.15	Tainiolite	KLiMg₂(Si₄O₁₀)F₂	Mon. 2/m : B2/m
9.EC.15	Ganterite	(Ba,Na,K)(Al,Mg)₂(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.15	UM1988-22-SiO:AlCaFFeHKLiMg	KLiMgAl₂Si₃O₁₀F₂	Mon.
9.EC.15	Kreiterite	CsLi₂Fe³⁺(Si₄O₁₀)F₂	Mon.
9.EC.20	Annite	KFe²⁺₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.20	Ephesite	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂	Tric. 1 : P1
9.EC.20	Hendricksite	KZn₃(Si₃Al)O₁₀(OH)₂	Mon. 2/m : B2/m
9.EC.20	Masutomilite	(K,Rb)(Li,Mn³⁺,Al)₃(AlSi₃O₁₀)(F,OH)₂	Mon. 2 : B2
9.EC.20	Norrishite	KLiMn³⁺₂(Si₄O₁₀)O₂	Mon. 2/m : B2/m
9.EC.20	Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.20	Polylithionite	KLi₂Al(Si₄O₁₀)(F,OH)₂	Mon. 2/m : B2/b
9.EC.20	Preiswerkite	NaMg₂Al(Al₂Si₂O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.20	Siderophyllite	KFe²⁺₂Al(Al₂Si₂O₁₀)(OH)₂	Mon.
9.EC.20	Tetraferriphlogopite	KMg₃(Fe³⁺Si₃O₁₀)(OH,F)₂	Mon. 2/m : B2/m
9.EC.20	Fluorotetraferriphlogopite	KMg₃(Fe³⁺Si₃O₁₀)F₂	Mon. 2/m : B2/m
9.EC.20	Wonesite	(Na,K)(Mg,Fe,Al)₆((Al,Si)₄O₁₀)₂(OH,F)₄	Mon. 2/m : B2/m
9.EC.20	Eastonite	KMg₂Al(Al₂Si₂O₁₀)(OH)₂	Mon.
9.EC.20	Tetraferriannite	KFe²⁺₃(Si₃Fe³⁺)O₁₀(OH)₂	Mon. 2/m : B2/m
9.EC.20	Trilithionite	K(Li_1.5Al_1.5)(AlSi₃O₁₀)(F,OH)₂	Mon. 2/m : B2/b
9.EC.20	Fluorannite	KFe²⁺₃(Si₃Al)O₁₀F₂	Mon. 2/m : B2/m
9.EC.20	Shirokshinite	K(NaMg₂)(Si₄O₁₀)F₂	Mon. 2/m : B2/m
9.EC.20	Shirozulite	KMn²⁺₃(Si₃Al)O₁₀(OH)₂	Mon. 2/m : B2/m
9.EC.20	Sokolovaite	CsLi₂Al(Si₄O₁₀)F₂	Mon.
9.EC.20	Aspidolite	NaMg₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.20	Fluorophlogopite	KMg₃(Si₃Al)O₁₀F₂	Mon. 2/m : B2/m
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	Mon. 2/m : B2/m
9.EC.20	Yangzhumingite	KMg_2.5(Si₄O₁₀)F₂	Mon. 2/m : B2/m
9.EC.20	Orlovite	KLi₂Ti(Si₄O₁₀)OF	Mon. 2 : B2
9.EC.20	Oxyphlogopite	K(Mg,Ti,Fe)₃[(Si,Al)₄O₁₀](O,F)₂	Mon. 2/m : B2/m
9.EC.20	Chloroferrokinoshitalite	(Ba,K)(Fe²⁺,Mg)₃(Al₂Si₂O₁₀)(Cl,OH,F)₂
9.EC.22	Pimelite	Ni₃Si₄O₁₀(OH)₂ · 4H₂O	Hex.
9.EC.30	Chlorophaeite	(Ca,Mg,Fe)₂Fe₂Si₄O₁₃ · 10H₂O
9.EC.30	Margarite	CaAl₂(Al₂Si₂O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.35	Anandite	(Ba,K)(Fe²⁺,Mg)₃((Si,Al,Fe)₄O₁₀)(S,OH)₂	Mon. 2/m : B2/b
9.EC.35	Bityite	CaLiAl₂(AlBeSi₂O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.35	Clintonite	CaAlMg₂(SiAl₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.35	Kinoshitalite	(Ba,K)(Mg,Mn²⁺,Al)₃(Al₂Si₂O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.35	Ferrokinoshitalite	(Ba,K)(Fe²⁺,Mg)₃(Al₂Si₂O₁₀)(OH,F)₂	Mon. 2/m : B2/m
9.EC.35	Oxykinoshitalite	(Ba,K)(Mg,Ti,Fe³⁺,Fe²⁺)₃((Si,Al)₄O₁₀)(O,OH,F)₂	Mon. 2/m : B2/m
9.EC.35	Fluorokinoshitalite	BaMg₃(Al₂Si₂O₁₀)F₂	Mon. 2/m : B2/m
9.EC.40	Beidellite	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O	Mon. 2/m : B2/m
9.EC.40	Kurumsakite	(Zn,Ni,Cu)₈Al₈V⁵⁺₂Si₅O₃₅ · 27H₂O (?)	Orth.
9.EC.40	Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O	Mon. 2/m : B2/m
9.EC.40	Nontronite	Na_0.3Fe₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O	Mon. 2/m : B2/m
9.EC.40	Volkonskoite	Ca_0.3(Cr,Mg,Fe)₂((Si,Al)₄O₁₀)(OH)₂ · 4H₂O	Mon.
9.EC.40	Yakhontovite	(Ca,Na)_0.5(Cu,Fe,Mg)₂(Si₄O₁₀)(OH)₂ · 3H₂O	Mon.
9.EC.45	Hectorite	Na_0.3(Mg,Li)₃(Si₄O₁₀)(F,OH)₂	Mon. 2/m : B2/m
9.EC.45	Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O	Mon.
9.EC.45	Sauconite	Na_0.3Zn₃((Si,Al)₄O₁₀)(OH)₂ · 4H₂O	Mon.
9.EC.45	Spadaite	MgSiO₂(OH)₂ · H₂O (?)
9.EC.45	Stevensite	(Ca,Na)_xMg_3-x(Si₄O₁₀)(OH)₂	Mon.
9.EC.45	Swinefordite	Li(Al,Li,Mg)₃((Si,Al)₄O₁₀)₂(OH,F)₄ · nH₂O	Mon. 2/m : B2/m
9.EC.45	Zincsilite	Zn₃Si₄O₁₀(OH)₂ · 4H₂O (?)	Mon.
9.EC.45	Ferrosaponite	Ca_0.3(Fe²⁺,Mg,Fe³⁺)₃((Si,Al)₄O₁₀)(OH)₂ · 4H₂O	Mon.
9.EC.45	Hanjiangite	Ba₂CaV³⁺Al(H₂AlSi₃O₁₂)(CO₃)₂F	Mon. 2 : B2
9.EC.50	Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O	Mon. 2/m
9.EC.52	Tarasovite	near NaKAl₁₁Si₁₃O₄₀(OH)₉ · 3H₂O
9.EC.55	Baileychlore	(Zn,Fe²⁺,Al,Mg)₆(Si,Al)₄O₁₀(OH)₈	Tric. 1
9.EC.55	Chamosite	(Fe²⁺)₅Al(Si,Al)₄O₁₀(OH,O)₈	Mon. 2/m : B2/m
9.EC.55	Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈	Mon. 2/m : B2/m
9.EC.55	Cookeite	(LiAl₄◻)[AlSi₃O₁₀](OH)₈	Mon. 2/m
9.EC.55	Franklinfurnaceite	Ca₂Fe³⁺Mn²⁺₃Mn³⁺(Zn₂Si₂O₁₀)(OH)₈	Mon. 2 : B2
9.EC.55	Gonyerite	(Mn²⁺,Mg)₅Fe³⁺(Fe³⁺Si₃O₁₀)(OH)₈	Orth.
9.EC.55	Nimite	(Ni,Mg,Al)₆((Si,Al)₄O₁₀)(OH)₈	Mon. 2/m : B2/m
9.EC.55	Orthochamosite	(Fe²⁺,Mg,Fe³⁺)₅Al(AlSi₃O₁₀)(OH,O)₈
9.EC.55	Pennantite	Mn²⁺₅Al(AlSi₃O₁₀)(OH)₈	Tric.
9.EC.55	Sudoite	Mg₂Al₃(Si₃Al)O₁₀)(OH)₈	Mon. 2/m : B2/m
9.EC.55	Donbassite	Al_4.33(Si₃Al)O₁₀(OH)₈	Mon. 2 : B2
9.EC.55	Glagolevite	Na(Mg,Al)₆(AlSi₃O₁₀)(OH,O)₈	Tric. 1 : P1
9.EC.55	Borocookeite	(LiAl₄◻)[BSi₃O₁₀](OH)₈	Mon. m : Bb
9.EC.60	Aliettite	Ca_0.2Mg₆((Si,Al)₈O₂₀)(OH)₄ · 4H₂O	Mon.
9.EC.60	Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O	Orth.
9.EC.60	Dozyite	Mg₇Al₂(Al₂Si₄O₁₅)(OH)₁₂	Mon.
9.EC.60	Hydrobiotite	K(Mg,Fe²⁺)₆((Si,Al)₈O₂₀)(OH)₄ · nH₂O	Mon. 2/m : B2/m
9.EC.60	Karpinskite	(Ni,Mg)₂Si₂O₅(OH)₂ (?)	Mon.
9.EC.60	Kulkeite	Mg₈Al(AlSi₇O₂₀)(OH)₁₀	Mon.
9.EC.60	Lunijianlaite	Li_0.7Al_6.2(AlSi₇O₂₀)(OH,O)₁₀	Mon.
9.EC.60	Saliotite	(Li,Na)Al₃(AlSi₃O₁₀)(OH)₅	Mon. 2/m : B2/m
9.EC.60	Tosudite	Na_0.5(Al,Mg)₆((Si,Al)₈O₁₈)(OH)₁₂ · 5H₂O	Mon. 2 : B2
9.EC.60	Brinrobertsite	Na_0.3Al₄(Si₄O₁₀)₂(OH)₄ · 3.5 H₂O	Mon.
9.EC.65	Macaulayite	(Fe,Al)₂₄Si₄O₄₃(OH)₂	Mon.
9.EC.70	Burckhardtite	Pb₂(Fe³⁺Te⁶⁺)[AlSi₃O₈]O₆	Trig. 3m (3 2/m) : P3 1m
9.EC.75	Ferrisurite	(Pb,Ca)_2.4Fe³⁺₂(Si₄O₁₀)(CO₃)_1.7(OH)₃ · nH₂O	Mon.
9.EC.75	Surite	(Pb,Ca)₃(Al,Fe²⁺,Mg)₂((Si,Al)₄O₁₀)(CO₃)₂(OH)₂	Mon. 2 : P2₁
9.EC.75	Niksergievite	(Ba,Ca)₂Al₃(AlSi₃O₁₀)(CO₃)(OH)₆ · nH₂O	Mon.
9.EC.80	Kegelite	Pb₈Al₄(Si₈O₂₀)(SO₄)₂(CO₃)₄(OH)₈	Mon.

Other InformationHide

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 RectoriteHide

mindat.org URL:

https://www.mindat.org/min-3377.html
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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for RectoriteHide

Reference List:

Brackett, R.N., Williams, J.F. (1891) Newtonite and rectorite - two new minerals of the kaolinite group. American Journal of Science: 142: 11-21.

Brindley, G.W. (1956) Allevardite, a swelling double-layer mica mineral. American Mineralogist: 41: 91-103.

Korolev, Y.M. (1961) The structure of allevardite. Kristallografiya (Sov. Phys. Crystal.): 5: 848-852. (in Russian)

Brown, G., Weir, A.H. (1963) The identity of rectorite and allevardite. Proc. Inter. Clay Conference: 27-36.

Fleischer, M. (1964) New mineral names. American Mineralogist: 49: 439-448.

Komada, H. (1966) The nature of the component layers of rectorite. American Mineralogist: 51: 1035-1055.

IMA (1967) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine and Journal of the Mineralogical Society, 36 (277) 131-136 doi:10.1180/minmag.1967.036.277.20

Henderson, G.V., Bradley, W.F. (1970) Rectorite and the rectorite-like layer structures. Clays and Clay Minerals: 18: 115-119.

Korolev, Y.M. (1971) Some features of rectorite from Pakistan. Kristallografiya (Sov. Phys. Crystal.): 16: 250-253. (in Russian)

Bailey, S.W. (1981) A system of nomenclature for regular interstratifications. The Canadian Mineralogist: 19: 651-655.

Bailey, S.W. (1982) Nomenclature for regular interstratifications. American Mineralogist: 67: 394-398.

Jakobsen, H.J., Nielsen, N.C., Lindgreen, H. (1995) Sequences of charged sheets in rectorite. American Mineralogist: 80: 247-252.

Kitagawa, R. (1997) Surface microtopography of rectorite (allevardite) from Allevard, France. Clay Minerals: 32 : 89-95.

Atanasova, M.T., Vyalikh, A., Scheler, U., Focke, W.W. (2016) Characterization of rectorite from the Beatrix Gold Mine in South Africa. Applied Clay Science: 126: 7-16.

(2023) Rectorite. Handbook of Mineralogy. Mineralogical Society of America

Localities for RectoriteHide

This 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.

Locality ListHide

- 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.


Australia
Victoria Mansfield Shire A1 Mining Settlement ⓘ A1 Mine	F.Bussat 1980
Gaffney's Creek ⓘ Rose of Denmark Mine	F.Bussat 1980. Minerals from some mines ...
Woods Point ⓘ Little Comet Mine	Bussat (1980)
ⓘ Morning Star Mine	Bussat et al. (1980)

Austria
Salzburg Salzburg-Umgebung District Nußdorf am Haunsberg ⓘ Weitwörth	Exel (1993)

Brazil
Bahia Boquira ⓘ Boquira mine	Cassedanne et al. (1975)

Canada
Newfoundland and Labrador Newfoundland St. Lawrence ⓘ AGS Fluorite Deposit	Norman Wilson collection

China
Guangxi Baise ⓘ Pingguo Co.	Naixian Zhang et al. (1996)
Guizhou Bijie Dafang County ⓘ Dafang clay mine	Lin Yang (1991)
Hubei Jingmen ⓘ Zhongxiang Co.	Rongying Zhang et al. (1987)

Colombia


Cyprus
Nicosia District Skouriotissa ⓘ Phoenix Mine	Adamides (2010)

Finland
South Ostrobothnia Alajärvi ⓘ Hietakangas	Kinnunen

France
Auvergne-Rhône-Alpes Isère Grenoble ⓘ Allevard	ClayMin 32:89 (1997)

Hungary
Borsod-Abaúj-Zemplén County Szerencs District Mád ⓘ Király Hill	Koch: Minerals of Hungary

Japan
Aomori Prefecture Kamikita District ⓘ Kamikita mine	INOUE et al. (1991)
Kagoshima Prefecture ⓘ Makurazaki area	Kawano et al. (1989) +1 other reference
Nagano Prefecture ⓘ Sano mine	Clays and Clay Minerals 45:773 (1997)

New Zealand
Waikato Region Hauraki District Waihi ⓘ Correnso Mine	Singh (2015)

Nigeria
Ondo Akoko North East ⓘ Erusu Akoko	Ademila et al. (2017)

Russia
Khanty-Mansi Autonomous Okrug Berezovo district Saranpaul ⓘ Dodo Mine	Burlakov (1995)
Sverdlovsk Oblast ⓘ Galkinsk deposit	tv-cv1m illites from galkinskoe massive sulfide deposit (russia) +2 other references
Ural Mountains ⓘ Polar Urals

Slovakia
Banská Bystrica Region Banská Štiavnica District Banská Štiavnica ⓘ Šobov Quarry	Pauliš

South Africa
Free State Lejweleputswa District Municipality Matjhabeng Local Municipality Welkom ⓘ Beatrix Mine	Atanasova et al. (2916)
ⓘ Witwatersrand goldfield	Cairncross et al. (1995)

Spain
Castile-La Mancha Ciudad Real Almadén Almadén Mine ⓘ Las Cuevas Mine	Higueras et al. (1999)

Switzerland
Grisons Albula Region Vaz/Obervaz Solis ⓘ Heidbach (Rain digl Lai)	Hofmann et al. (2014)
Valais Goms Binn Fäld ⓘ Lengenbach Quarry	XRD Analyses by N. Meisser +1 other reference

UK
Scotland Highland Eilean á Chèo Isle of Skye ⓘ Drynock	Livingstone (1988)

USA
Arizona Cochise County Whetstone Mining District ⓘ Kartchner Caverns	www.caves.org +2 other references
Arkansas Garland County Marble Township ⓘ Blue Mountain Mining District (TL)	Brackett et al. (1891) +2 other references
ⓘ Montgomery County	Howard (1987) +1 other reference
Perry County Hollis ⓘ Hollis Road Metal Quarry	Rocks & Min.:63:115 +1 other reference
Nimrod Deckard Mountain ⓘ Deckard Mountain Quartz Deposit	Rocks & Min.:63:115 +1 other reference
Pulaski County Jeffrey ⓘ Jeffrey Quarry	Miser et al. (in coop. with the U.S.G.S.) +1 other reference
Little Rock ⓘ Rector Hill Quarry	Rocks & Min.: 63:122.
Saline County Bland ⓘ Stand-on-Your-Head No. 1 mine (Alum Creek prospect)	Wilson (1986)
Paron ⓘ Angleing Pinnacle Workings	Rocks & Min.:63:122.
ⓘ Green's Crystal Mine (Clouds Mine)	Smith (1997)
ⓘ Williams Junction Quartz Workings	Rocks & Min.: 63:122.
California El Dorado County Salmon Falls Mining District (Flagstaff Hill area) Flagstaff Hill ⓘ Flagstaff Hill occurrences	...
Colorado Lake County Alicante Buckeye Gulch ⓘ Lincoln Porphry	Eckel et al. (1997)
San Juan County ⓘ Longfellow Mine	Eckel et al. (1997)
Montana Flathead County Hog Heaven Mining District (Flathead Mining District) Kofford Ridge ⓘ Flathead Mine (Hog Heaven Project)	Cossaboom (1981) +1 other reference
Tennessee Grainger County Copper Ridge Zinc Mining District ⓘ Thorn Hill bentonite deposit	Paris (2011)
Smith County Carthage ⓘ Tennessee highway 53 roadcut	Travis A. Paris (2011)
Utah Tooele County ⓘ Manning Canyon Shale	Bullock (1981)
Stansbury Mountains ⓘ Manning Canyon Shale	Bullock (1981)
Utah County Beverly Hills ⓘ Manning Canyon Shale	Bullock (1981)
ⓘ Manning Canyon Shale	Bullock (1981) +2 other references

Rectorite

About RectoriteHide

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Optical Data of RectoriteHide

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X-Ray Powder DiffractionHide

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References for RectoriteHide

Localities for RectoriteHide

Locality ListHide

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