Mindat Logo
Home Page Log In Messageboard The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Stevensite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Prospect Park Quarry (Sowerbutt Quarry; Vandermade Quarry; Warren Brothers Quarry), Prospect Park, Passaic Co., New Jersey, USA
© 2007, JGW

Show Stevensite Photos (13)



Formula:
(Ca,Na)
 
x
Mg
 
3-x
(Si
 
4
O
 
10
)(OH)
 
2
System:MonoclinicColour:White, Pale Yellow, Pale ...
Hardness:2½
Member of:Smectite Group
Name:
Named after Edwin Augustus Stevens [July 28, 1795- August 8, 1868], founder of the Stevens Institute of Technology, Hoboken, New Jersey (USA). The mineral "stevensite" was named for Edwin Augustus Stevens in recognition of the high technical expertise achieved by engineering graduates of his college. Stevens was a co-founder of the Union Line Transportation Company in 1823, but which began operation in the 1830's with one of the first railroads in the USA.
Isostructural with:Smectite Group
This page provides mineralogical data about Stevensite.

Classification of Stevensite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:8/H.20-40
Nickel-Strunz 10th (pending) edition ID:9.EC.45

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
Dana 8th edition ID:71.3.1b.6

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
3 : Sheets of 6-membered rings with 2:1 clays
Hey's CIM Ref.:14.4.14

14 : Silicates not Containing Aluminum
4 : Silicates of Mg
mindat.org URL:http://www.mindat.org/min-3770.html
Please feel free to link to this page.

Type Occurrence of Stevensite

Type Locality:Bergen Hill, Bergen Co. & Hudson Co., New Jersey, USA
Year of Discovery:1873

Physical Properties of Stevensite

Lustre:Waxy, Earthy
Diaphaneity (Transparency):Translucent
Colour:White, Pale Yellow, Pale Brown, Pale Pink
Streak:White
Hardness (Mohs):2½
Comment:High hardness may be due to relict pectolite
Tenacity:Fragile
Cleavage:Perfect
{001}
Fracture:Irregular/Uneven
Comment:Usually in clay-sized particles
Density (measured):2.15 - 2.57 g/cm3
Density (calculated):2.07 g/cm3
Comment:May have relict pectolite

Crystallography of Stevensite

Crystal System:Monoclinic
Cell Parameters:a = 5.26Å, b = 9.108Å, c = 15.3Å
Ratio:a:b:c = 0.578 : 1 : 1.68
Unit Cell Volume:V 0.00 ų (Calculated from Unit Cell)
Z:2
Morphology:Usually clay-sized particles
Comment:Disordered
X-Ray Powder Diffraction:
d-spacingIntensity
15.5 (100)
5.0 (10)
4.53 (35)
3.10 (10)
2.54 (10)
2.27 (10)
1.87 (10)
1.52 (15)
Comments:25-1498; Basal spacing variable as is the case with Smectite. Dehydrated stevensite may have a 14 A spacing. Expands with intercalation.

Optical Data of Stevensite

Type:Biaxial (+)
RI values: nα = 1.500 - 1.560 nβ = 1.500 - 1.560 nγ = 1.510 - 1.570 n = 1.50 - 1.51
Birefringence:0.01
Maximum Birefringence:δ = 0.010

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:none
Optical Extinction:May be isotropic
Pleochroism:Non-pleochroic
Comments:High refractive indices may be due to dehydration or transition to nontronite, etc.

Chemical Properties of Stevensite

Formula:
(Ca,Na)
 
x
Mg
 
3-x
(Si
 
4
O
 
10
)(OH)
 
2
Essential elements:Ca, H, Mg, O, Si
All elements listed in formula:Ca, H, Mg, Na, O, Si
Common Impurities:Ti,Al,Fe,Mn,Na,K,H2O

Relationship of Stevensite to other Species

Member of:Smectite Group
Other Members of Group:

- +
Aliettite
Ca
 
0.2
Mg
 
6
((Si,Al)
 
8
O
 
20
)(OH)
 
4
 · 4H
 
2
O
Beidellite
(Na,Ca
 
0.5
)
 
0.3
Al
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
Ferrosaponite
Ca
 
0.3
(Fe
2+
 
,Mg,Fe
3+
 
)
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
Hectorite
Na
 
0.3
(Mg,Li)
 
3
(Si
 
4
O
 
10
)(F,OH)
 
2
Montmorillonite
(Na,Ca)
 
0.33
(Al,Mg)
 
2
(Si
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
Nontronite
Na
 
0.3
Fe
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
Pimelite
Ni
 
3
Si
 
4
O
 
10
(OH)
 
2
·4H
 
2
O
Saliotite
(Li,Na)Al
 
3
(AlSi
 
3
O
 
10
)(OH)
 
5
Saponite
Ca
 
0.25
(Mg,Fe)
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
Sauconite
Na
 
0.3
Zn
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
Swinefordite
Li(Al,Li,Mg)
 
4
((Si,Al)
 
4
O
 
10
)
 
2
(OH,F)
 
4
 · nH
 
2
O
Volkonskoite
Ca
 
0.3
(Cr,Mg,Fe)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
Yakhontovite
(Ca,Na)
 
0.5
(Cu,Fe,Mg)
 
2
(Si
 
4
O
 
10
)(OH)
 
2
 · 3H
 
2
O
Zincsilite
Zn
 
3
(Si
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
Common Associates:
PectoliteDatoliteCalcite
Related Minerals - Nickel-Strunz Grouping):

- +
9.EC.05Minnesotaite
(Fe,Mg)
 
3
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.05Talc
Mg
 
3
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.05Willemseite
(Ni,Mg)
 
3
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.10Ferripyrophyllite
Fe
3+
2
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.10Pyrophyllite
Al
 
2
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Boromuscovite
KAl
 
2
(BSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Celadonite
K(Mg,Fe
2+
 
)Fe
3+
 
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Chernykhite
(Ba,Na)(V
3+
 
,Al,Mg)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
9.EC.15Montdorite
(K,Na)
 
2
(Fe
2+
 
,Mn
2+
 
,Mg)
 
5
(Si
 
4
O
 
10
)
 
2
(OH,F)
 
4
9.EC.15Muscovite
KAl
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Nanpingite
CsAl
 
2
(AlSi
 
3
O
 
10
)(OH,F)
 
2
9.EC.15Paragonite
NaAl
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Roscoelite
K(V
3+
 
,Al)
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Tobelite
(NH
 
4
,K)Al
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Aluminoceladonite
K(Mg,Fe
2+
 
)Al(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Chromphyllite
K(Cr,Al)
 
2
(AlSi
 
3
O
 
10
)(OH,F)
 
2
9.EC.15Ferro-aluminoceladonite
K(Fe
2+
 
,Mg)(Al,Fe
3+
 
)(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Ferroceladonite
K(Fe
2+
 
,Mg)(Fe
3+
 
,Al)(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Chromceladonite
K(Mg,Fe
2+
 
)(Cr,Al)(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Tainiolite
KLiMg
 
2
(Si
 
4
O
 
10
)F
 
2
9.EC.15Ganterite
(Ba,Na,K)(Al,Mg)
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Annite
KFe
2+
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Ephesite
LiNaAl
 
2
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.20Hendricksite
K(Zn,Mg,Mn
2+
 
)
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Masutomilite
(K,Rb)(Li,Mn
3+
 
,Al)
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
9.EC.20Norrishite
KLiMn
3+
2
(Si
 
4
O
 
10
)O
 
2
9.EC.20Phlogopite
KMg
 
3
(AlSi
 
3
O
 
10
)(OH,F)
 
2
9.EC.20Polylithionite
KLi
 
2
Al(Si
 
4
O
 
10
)(F,OH)
 
2
9.EC.20Preiswerkite
NaMg
 
2
Al(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.20Siderophyllite
KFe
2+
2
Al(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.20Tetraferriphlogopite
KMg
 
3
(Fe
3+
 
Si
 
3
O
 
10
)(OH,F)
 
2
9.EC.20Fluorotetraferriphlogopite
KMg
 
3
(Fe
3+
 
Si
 
3
O
 
10
)F
 
2
9.EC.20Wonesite
(Na,K)(Mg,Fe,Al)
 
6
((Al,Si)
 
4
O
 
10
)
 
2
(OH,F)
 
4
9.EC.20Eastonite
KMg
 
2
Al(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.20Tetraferriannite
KFe
2+
3
((Fe
3+
 
,Al)Si
 
3
O
 
10
)(OH)
 
2
9.EC.20Trilithionite
K(Li,Al)
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
9.EC.20Fluorannite
KFe
2+
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
9.EC.20Shirokshinite
KNaMg
 
2
(Si
 
4
O
 
10
)F
 
2
9.EC.20Shirozulite
K(Mn
2+
 
,Mg)
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Sokolovaite
CsLi
 
2
Al(Si
 
4
O
 
10
)F
 
2
9.EC.20Aspidolite
NaMg
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Fluorophlogopite
KMg
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
9.EC.20UM2004-49-SiO:AlCsFHKLi
(Cs,K)(Al,Li)
 
2.6
((Si,Al)
 
4
O
 
10
)(F,OH)
 
2
9.EC.20Suhailite
(NH
 
4
)Fe
2+
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Yangzhumingite
KMg
 
2.5
(Si
 
4
O
 
10
)F
 
2
9.EC.20IMA2009-006
KLi
 
2
Ti(Si
 
4
O
 
10
)OF
9.EC.20Oxyphlogopite
K(Mg,Ti,Fe)
 
3
[(Si,Al)
 
4
O
 
10
](O,F)
 
2
9.EC.25Brammallite
(Na,H
 
3
O)(Al,Mg,Fe)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
9.EC.30Margarite
CaAl
 
2
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.35Anandite
(Ba,K)(Fe
2+
 
,Mg)
 
3
((Si,Al,Fe)
 
4
O
 
10
)(S,OH)
 
2
9.EC.35Bityite
LiCaAl
 
2
(AlBeSi
 
2
O
 
10
)(OH)
 
2
9.EC.35Clintonite
Ca(Mg,Al)
 
3
(Al
 
3
SiO
 
10
)(OH)
 
2
9.EC.35Kinoshitalite
(Ba,K)(Mg,Mn
2+
 
,Al)
 
3
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.35Ferrokinoshitalite
(Ba,K)(Fe
2+
 
,Mg)
 
3
(Al
 
2
Si
 
2
O
 
10
)(OH,F)
 
2
9.EC.35Oxykinoshitalite
(Ba,K)(Mg,Ti,Fe
3+
 
,Fe
2+
 
)
 
3
((Si,Al)
 
4
O
 
10
)(O,OH,F)
 
2
9.EC.35Fluorokinoshitalite
BaMg
 
3
(Al
 
2
Si
 
2
O
 
10
)F
 
2
9.EC.40Beidellite
(Na,Ca
 
0.5
)
 
0.3
Al
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
9.EC.40Kurumsakite
(Zn,Ni,Cu)
 
8
Al
 
8
V
5+
2
Si
 
5
O
 
35
 · 27H
 
2
O (?)
9.EC.40Montmorillonite
(Na,Ca)
 
0.33
(Al,Mg)
 
2
(Si
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
9.EC.40Nontronite
Na
 
0.3
Fe
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
9.EC.40Volkonskoite
Ca
 
0.3
(Cr,Mg,Fe)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
9.EC.40Yakhontovite
(Ca,Na)
 
0.5
(Cu,Fe,Mg)
 
2
(Si
 
4
O
 
10
)(OH)
 
2
 · 3H
 
2
O
9.EC.45Hectorite
Na
 
0.3
(Mg,Li)
 
3
(Si
 
4
O
 
10
)(F,OH)
 
2
9.EC.45Saponite
Ca
 
0.25
(Mg,Fe)
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
9.EC.45Sauconite
Na
 
0.3
Zn
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
9.EC.45Spadaite
MgSiO
 
2
(OH)
 
2
 · H
 
2
O (?)
9.EC.45Swinefordite
Li(Al,Li,Mg)
 
4
((Si,Al)
 
4
O
 
10
)
 
2
(OH,F)
 
4
 · nH
 
2
O
9.EC.45Zincsilite
Zn
 
3
(Si
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
9.EC.45Ferrosaponite
Ca
 
0.3
(Fe
2+
 
,Mg,Fe
3+
 
)
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
9.EC.50Vermiculite
(Mg,Fe,Al)
 
3
((Al,Si)
 
4
O
 
10
)(OH)
 
2
 · 4H
 
2
O
9.EC.55Baileychlore
(Zn,Fe,Al,Mg)
 
6
((Si,Al)
 
4
O
 
10
)(OH)
 
8
9.EC.55Chamosite
(Fe
2+
 
,Mg)
 
5
Al(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Clinochlore
(Mg,Fe
2+
 
)
 
5
Al(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Cookeite
LiAl
 
4
(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Franklinfurnaceite
Ca
 
2
Fe
3+
 
Mn
2+
3
Mn
3+
 
(Zn
 
2
Si
 
2
O
 
10
)(OH)
 
8
9.EC.55Gonyerite
(Mn
2+
 
,Mg)
 
5
Fe
3+
 
(Fe
3+
 
Si
 
3
O
 
10
)(OH)
 
8
9.EC.55Nimite
(Ni,Mg,Al)
 
6
((Si,Al)
 
4
O
 
10
)(OH)
 
8
9.EC.55Orthochamosite
(Fe
2+
 
,Mg,Fe
3+
 
)
 
5
Al(AlSi
 
3
O
 
10
)(OH,O)
 
8
9.EC.55Pennantite
Mn
2+
5
Al(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Sudoite
(Mg,Fe
2+
 
)
 
2
Al
 
3
(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Donbassite
Al
 
4.33
(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Glagolevite
Na(Mg,Al)
 
6
(AlSi
 
3
O
 
10
)(OH,O)
 
8
9.EC.55Borocookeite
Li
 
1+3x
Al
 
4-x
(BSi
 
3
O
 
10
)(OH)
 
8
9.EC.60Aliettite
Ca
 
0.2
Mg
 
6
((Si,Al)
 
8
O
 
20
)(OH)
 
4
 · 4H
 
2
O
9.EC.60Corrensite
(Mg,Fe)
 
9
((Si,Al)
 
8
O
 
20
)(OH)
 
10
 · nH
 
2
O
9.EC.60Dozyite
Mg
 
7
Al
 
2
(Al
 
2
Si
 
4
O
 
15
)(OH)
 
12
9.EC.60Hydrobiotite
K(Mg,Fe
2+
 
)
 
6
((Si,Al)
 
8
O
 
20
)(OH)
 
4
 · nH
 
2
O
9.EC.60Karpinskite
(Ni,Mg)
 
2
Si
 
2
O
 
5
(OH)
 
2
 (?)
9.EC.60Kulkeite
Mg
 
8
Al(AlSi
 
7
O
 
20
)(OH)
 
10
9.EC.60Lunijianlaite
Li
 
0.7
Al
 
6.2
(AlSi
 
7
lO
 
20
)(OH,O)
 
10
9.EC.60Rectorite
(Na,Ca)Al
 
4
((Si,Al)
 
8
O
 
20
)(OH)
 
4
 · 2H
 
2
O
9.EC.60Saliotite
(Li,Na)Al
 
3
(AlSi
 
3
O
 
10
)(OH)
 
5
9.EC.60Tosudite
Na
 
0.5
(Al,Mg)
 
6
((Si,Al)
 
8
O
 
18
)(OH)
 
12
 · 5H
 
2
O
9.EC.60Brinrobertsite
Na
 
0.3
Al
 
4
(Si
 
4
O
 
10
)
 
2
(OH)
 
4
 · 3.5 H
 
2
O
9.EC.65Macaulayite
(Fe,Al)
 
24
Si
 
4
O
 
43
(OH)
 
2
9.EC.70Burckhardtite
Pb
 
2
(Fe
3+
 
,Mn
3+
 
)Te
4+
 
(AlSi
 
3
O
 
10
)O
 
2
(OH)
 
2
 · H
 
2
O
9.EC.75Ferrisurite
(Pb,Ca)
 
2.4
Fe
3+
2
(Si
 
4
O
 
10
)(CO
 
3
)
 
1.7
(OH)
 
3
 · nH
 
2
O
9.EC.75Surite
(Pb,Ca)
 
3
(Al,Fe
2+
 
,Mg)
 
2
((Si,Al)
 
4
O
 
10
)(CO
 
3
)
 
2
(OH)
 
2
9.EC.75Niksergievite
(Ba,Ca)
 
2
Al
 
3
(AlSi
 
3
O
 
10
)(CO
 
3
)(OH)
 
6
 · nH
 
2
O
9.EC.80Kegelite
Pb
 
8
Al
 
4
(Si
 
8
O
 
20
)(SO
 
4
)
 
2
(CO
 
3
)
 
4
(OH)
 
8
Related Minerals - Hey's Index Grouping:

- +
14.4.1Forsterite
Mg
 
2
SiO
 
4
14.4.2Enstatite
MgSiO
 
3
14.4.3Clinoenstatite
MgSiO
 
3
14.4.4Chrysotile
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
14.4.5Clinochrysotile
14.4.6Orthochrysotile
14.4.7Parachrysotile
14.4.8Lizardite
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
14.4.9Talc
Mg
 
3
(Si
 
4
O
 
10
)(OH)
 
2
14.4.10Spadaite
MgSiO
 
2
(OH)
 
2
 · H
 
2
O (?)
14.4.11Sepiolite
Mg
 
4
(Si
 
6
O
 
15
)(OH)
 
2
 · 6H
 
2
O
14.4.12Loughlinite
Na
 
2
Mg
 
3
Si
 
6
O
 
16
 · 8H
 
2
O
14.4.13Eifelite
KNa
 
3
Mg
 
4
Si
 
12
O
 
30
14.4.15Antigorite
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
14.4.16 Magnesio-anthophyllite

Other Names for Stevensite

Synonyms:
AfroditeAphrodite
Other Languages:
German:Aphrodit
Stevensit
Spanish:Afrodita
Aphrodita
Stevensita
Varieties:
Ghassoulite

Other Information

Fluorescence in UV light:Not fluorescent
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Stevensite

Reference List:

- +
Faust, G.T., Murata, K.J. (1953), American Mineralogist: 38: 973.

American Mineralogist (1959): 44: 343-370.

Guven, Necip and Carney, LeRoy L. (1979) The Hydrothermal Transformation of Sepiolite to Stevensite and the Effect of Added Chlorides and Hydroxides, Clays and Clay Minerals, 27:253-260.

Bulletin de la Société française de Minéralogie et de Cristallographie (1980): 103: 579.

Internet Links for Stevensite

Search Engines:
  • Look for Stevensite on Google
  • Look for Stevensite images on Google
    • External Links:
  • Stevensite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Fine and rare minerals from mintreasure.com
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • The Arkenstone - Fine Minerals
  • Find Stevensite on www.crystalclassics.co.uk
  • Buy minerals from YourMineralCollection
  • Fine Minerals from Weinrich Minerals, Inc.
  • webminerals
  • Search for Stevensite on Well-Arranged Molecules
  • Search for - Stevensite - on e-Rocks Mineral Sales & Auctions
  • Top quality minerals from Kristalle of California
  • SpiriferMinerals.com - high quality low prices
  • Buy RARE Minerals from Rocks of Africa
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Stevensite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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.
    Australia
     
    • Tasmania
      • Heazlewood district
    		Anderson, P., Bottrill, R. & Davidson, P. (2002): Famous mineral localities: The Lord Brassey mine, Tasmania. Mineralogical Record 33, 321-332
      • Marrawah district
        • Redpa
    		http://www.crocoite.com/locationbulletins/part1/zeolites.pdf
    Austria
     
    • Lower Austria
      • Waldviertel
        • Albrechtsberg an der Großen Krems
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Canada
     
    • Québec
      • Chaudière-Appalaches
        • Les Appalaches RCM
          • Thetford Mines
    		GSC collection specimen
    Germany
     
    • Saxony
      • Vogtland
        • Plauen
          • Jocketa-Neuensalz District
            • Röttis
    		Sehrig, M. (2007): "Stevensite" von Röttis bei Plauen/Vogtland [Lapis Leserpost].LAPIS 32 (5), 7
    Hungary
     
    • Fejér Co.
      • Szár Hill
        • Kőszárhegy
    		Szakáll: Minerals of Szár Hill, 2004
    Italy
     
    • Lombardy
      • Sondrio Province
        • Masino Valley
    		IVM Magazine - Bulletin of the Institute of Mineralogy "F. Grazioli" number; 1 / 2008 "Reporting the discovery of Stevens in Val di Preda Rossa resulting. analysis by Athos Callegari Department of Earth Sciences, University of Pavia.
    Japan
     
    • Honshu Island
      • Chubu Region
        • Niigata Prefecture
          • Shibata City
    		www.minsocam.org/msa/Handbook/Stevensite.PDF.
      • Tohoku Region
        • Iwate Prefecture
          • Kamaishi City
    		Dana VIII
        • Yamagata Prefecture
          • Mogami
    www.minsocam.org/msa/Handbook/Stevensite.PDF.
    Morocco
     
    • Fès-Boulemane Region
      • Boulemane Province
    		[var: Ghassoulite] MINERALOGICAL AND PHYSICOCHEMICAL INVESTIGATION OF Mg-SMECTITE FROM JBEL GHASSOUL, MOROCCO, A. Benhammou, B. Tanouti, L. Nibou, A. Yaacoubi and J.-P. Bonnet; Clays and Clay Minerals; v. 57 p. 264 (2009). ANALYSES OF PALYGORSKITES AND ASSOCIATED CLAYS FROM THE JBEL RHASSOUL (MOROCCO) A. Chahi, J. Duplay, J. Luca; Clays and Clay Minerals; v. 41 p. 401 (1993).
    Norway
     
    • Buskerud
      • Kongsberg
    		Bancroft, P., Nordrum, F.S. & Lyckberg, P.(2001): Kongsberg revisited. Mineralogical Record 32: 181-205
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Ząbkowice District
        • Ząbkowice (Frankenstein)
    		www.geo.uw.edu.pl/ZASOBY/SZKLARY/szklary.htm.
    www.geo.uw.edu.pl/ZASOBY/SZKLARY/szklary.htm.
    Romania
     
    • Caraş-Severin Co.
      • Banat Mts
        • Moldova Nouă-Sasca Cu-Mo ore field
    		www.minerals-of-the-carpathians,2009
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Kovdor Massif
    		Sorokhtina, N.V., Chukanov, N.V., Voloshin, A.V., Pakhomovsky, Y.A., Bogdanova, A.N., and Moiseev, M.M. (2008): Geology of Ore Deposits 50(7), 620-628.
    • Urals Region
      • Southern Urals
        • Bashkortostan (Bashkiria) Republic
          • Baymak-Buribay District
    		Contributions to Mineralogy and Petrology Volume 147, Number 3, 363-383
    Slovakia
     
    • Trnava Region
      • Trnava Co.
        • Smolenice
    		Uher, P., Bačík P., Ozdín D. & Hornáček M., 2010: Datolit z permských metabazaltov na lokalite Lošonec (Malé Karpaty, JZ Slovensko). Bulletin mineralogicko-petrologického oddělení Národního muzea v Praze, 18, 2, 91-95.
    South Africa
     
    • Northern Cape Province
    		Cairncross/Dixon, 1995. Minerals of South Africa
    Sweden
     
    • Värmland
      • Filipstad
    		Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
        • Nordmark district
    		No reference listed
    No reference listed
    UK
     
    • England
      • Cornwall
        • Lizard Peninsula
          • Mawgan-in-Meneage
            • Goonhilly Downs
    		[Golley & Williams, 1995, 58 - "Cornish Mineral Reference Manual"]
          • St Keverne
    		[Golley & Williams, 1995, 58 - "Cornish Mineral Reference Manual"]
      • Northumberland
        • Barrasford
    		[Specimen in the Natural History Museum, London]
    • Scotland
      • Lothian (Mid Lothian)
        • Edinburgh
    		www.minsocam.org/msa/Handbook/Stevensite.PDF.
    • Wales
      • Gwynedd (Caernarvonshire)
        • Lleyn Peninsula
          • Pwllheli
    		National Museum of Wales collection
    USA
     
    • Arizona
      • Cochise Co.
        • Mule Mts
          • Warren District
    		No reference listed
              • Queen Hill
                • Copper Queen Mine (Halero Mine)
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 166.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 381.
    • Arkansas
    		Howard, 1987. Mineral Species of Arkansas, addenda
    • California
      • San Benito Co.
        • Diablo Range
          • New Idria District
    		www.benitoitemine.com
            • Picacho Peak
              • Clear Creek area
    		Joseph F. Cooper Jr., Gail E. Dunning, Ted A.Hadley (2003) Minerology of the Victor Claim, Clear Creek Area, New Idria District, San Benito County, California.
    • Colorado
    		AmMin 47:996
    • Maine
      • Knox Co.
    		Anderson, 1991. Maine Mineral Localities, 2nd ed.
    King & Foord, 1994. Mineralogy of Maine, V.1.
    • Nevada
      • Nye Co.
    		Clays and Clay Minerals, v. 30, p. 321-326
      • White Pine Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
    • New Jersey
      • Bergen Co.
        • Fort Lee
    		Focus on Fort Lee - A Key and Guide to the Minerals of Fort Lee.; Rocks & Min. (1963) 38:591-592
      • Bergen Co. & Hudson Co.
    		AmMin 44:342 (1959)
      • Essex Co.
        • Millburn Township
          • Short Hills
    		The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 5, No. 1, Manchester, J.G. (1931): 91.
        • Verona Township
    		The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 96.
      • Hudson Co.
        • Secaucus
    		Minerals of Laurel Hill, Secaucus, NJ, Facciolla, N.W. (published privately).
      • Passaic Co.
        • Little Falls Township
          • Great Notch
    		Mins. of NYC & Its Environs, NY Min. Club. (1931), Manchester; NJ Geol. Survey Bull. #64 (1960), Mason, B.
        • Paterson
    		No reference listed
    Rocks & Min.:59:157-183, Peters, Joseph J. (1984); Amer. Museum of Nat. History, NY, specimen.
    American Museum of Nat. History, NY & Paterson, NJ, Museum specimens; Rocks & Min.: 59:157-183, Peters, J.J. (1984)
        • Prospect Park
    		 Lapidary Jour.: 32:1700-1720, Mins. of the Watchungs, Part II, Vitali, G. (1978); Rocks & Min.: 59:157-183 (1984), Peters, J.J.
      • Union Co.
        • Springfield Township
          • Springfield
    		Rocks & Min.:13:75-79.
    Rocks & Min.:13:75-79.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 5, No. 1, Manchester, J.G. (1931): 93.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931):94.
    • New Mexico
      • Eddy Co.
        • Carlsbad
    		Clays and Clay Minerals; June 2000; v. 48; no. 3; p. 317-321
      • Sandoval Co.
    		Minerals of New Mexico 3rd ed.
    • New York
      • Essex Co.
    		Jensen (1978) Minerals of New York State,p.163
    DeRudder & Beck 11th National Conference on clay minerals 188-199
      • New York City
        • Staten Island (Richmond Co.)
    		Collected by Steve Okulewicz
    • North Carolina
      • Mitchell Co.
        • Cane Creek Section
          • Bakersville
    		Faust,George T.,Hathaway,John C.and Millot, Georges(1959)A Restudy of Stevensite and Allied Minerals;The American Mineralogist Vol.44, March-April
    • Utah
      • Duchesne Co.
    		http://gsa.confex.com/gsa/2002AM/finalprogram/abstract_45510.htm.
    • Virginia
      • Amherst Co.
        • Piney River area
    		Minerals of Virginia 1990 by R. V. Dietrich
    • Wisconsin
    		AmMin 19:493-514.
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 30th Apr 2013 13:23:35
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds