Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Cancrinite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
System:
Hexagonal
Colour:
grey-green, white, ...
Hardness:
5 - 6
Name:
For Count Egor Frantsevich Kankrin (Georg Cancrin) (1774-1845), Russian Minister of Finance.

Classification of Cancrinite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.FB.05

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
B : Tektosilicates with additional anions
76.2.5.3

76 : TECTOSILICATES Al-Si Framework
2 : Al-Si Framework Feldspathoids and related species
17.4.7

17 : Silicates Containing other Anions
4 : Silicates with carbonates
mindat.org URL:
http://www.mindat.org/min-880.html
Please feel free to link to this page.

Type Occurrence of Cancrinite

Year of Discovery:
1839

Occurrences of Cancrinite

Geological Setting:
Primary mineral in alkalic igneous rocks, alteration product of nepheline.

Physical Properties of Cancrinite

Vitreous, Greasy, Pearly
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
grey-green, white, yellow, blue, orange, reddish
Streak:
white
Hardness (Mohs):
5 - 6
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {1010}, poor on {0001}
Fracture:
Irregular/Uneven
Density:
2.42 - 2.51 g/cm3 (Measured)    2.49 g/cm3 (Calculated)

Crystallography of Cancrinite

Crystal System:
Hexagonal
Class (H-M):
6 - Pyramidal
Space Group:
P63
Cell Parameters:
a = 12.67(9) Å, c = 5.15(4) Å
Ratio:
a:c = 1 : 0.406
Unit Cell Volume:
V 715.96 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Rarely as prismatic crystals.
Twinning:
Rare lamellar
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Cancrinite

Type:
Uniaxial (+/-)
RI values:
nω = 1.507 - 1.528 nε = 1.495 - 1.503
Max Birefringence:
δ = 0.012 - 0.025
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of Cancrinite

Formula:
(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Essential elements:
All elements listed in formula:
Common Impurities:
Ti,Fe,Mg,K,Cl,S

Relationship of Cancrinite to other Species

Other Members of Group:
Afghanite(Na,Ca,K)8(Al6Si6O24)(Cl2,SO4,CO3)3 · 0.5H2O
Alloriite(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6
Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)
Biachellaite(Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2O
Bystrite(Na,K)7Ca(Al6Si6O24)(S3)1.5 · H2O
CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2O
Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2
DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5)
Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2O
Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2
HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2O
KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2O
KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)
Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4
Marinellite(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2O
MicrosommiteNa4K2Ca2(Al6Si6O24)(SO4)Cl2
PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2O
Quadridavyne(Na,K)6Ca2(Al6Si6O24)Cl4
Sacrofanite(Na,K)98Ca20(Al6Si6O24)14(SO4)26Cl2 · 8H2O
SulfhydrylbystriteNa5K2Ca[Al6Si6O24](S5)2(SH)
Tounkite(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2O
Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
9.FB.05Afghanite(Na,Ca,K)8(Al6Si6O24)(Cl2,SO4,CO3)3 · 0.5H2O
9.FB.05Bystrite(Na,K)7Ca(Al6Si6O24)(S3)1.5 · H2O
9.FB.05CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2O
9.FB.05Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2
9.FB.05Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2O
9.FB.05Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2
9.FB.05HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2O
9.FB.05Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4
9.FB.05MicrosommiteNa4K2Ca2(Al6Si6O24)(SO4)Cl2
9.FB.05PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2O
9.FB.05Quadridavyne(Na,K)6Ca2(Al6Si6O24)Cl4
9.FB.05Sacrofanite(Na,K)98Ca20(Al6Si6O24)14(SO4)26Cl2 · 8H2O
9.FB.05Tounkite(Na,Ca,K)8(Al6Si6O24)(SO4)2Cl · H2O
9.FB.05Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
9.FB.05Marinellite(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2O
9.FB.05Farneseite(Na,Ca,K)56(Al6Si6O24)7(SO4)12 · 6H2O
9.FB.05Alloriite(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6
9.FB.05Fantappièite[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2O
9.FB.05KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)
9.FB.05Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)
9.FB.05CarbobystriteNa8(Al6Si6O24)(CO3) · 3.5H2O
9.FB.05DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5)
9.FB.05KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2O
9.FB.10BicchuliteCa2(Al2SiO6)(OH)2
9.FB.10DanaliteFe42+(Be3Si3O12)S
9.FB.10GenthelviteZn4(Be3Si3O12)S
9.FB.10Haüyne(Na,Ca)4-8(Al6Si6O24)(SO4,S,Cl)1-2
9.FB.10HelvineMn42+(Be3Si3O12)S
9.FB.10KamaishiliteCa2(Al2SiO6)(OH)2
9.FB.10LazuriteNa6 Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
9.FB.10NoseanNa8(Al6Si6O24)(SO4) · H2O
9.FB.10SodaliteNa8(Al6Si6O24)Cl2
9.FB.10Tsaregorodtsevite(N(CH3)4)(AlSi5O12)
9.FB.10TugtupiteNa4(AlBeSi4O12)Cl
9.FB.15MarialiteNa4Al3Si9O24Cl
9.FB.15MeioniteCa4Al6Si6O24CO3
9.FB.15Silvialite(Ca,Na)4(Al6Si6O24)(SO4,CO3)
17.4.1TilleyiteCa5(Si2O7)(CO3)2
17.4.2SpurriteCa5(SiO4)2(CO3)
17.4.3Paraspurrite
17.4.4ScawtiteCa7(Si3O9)2CO3 · 2H2O
17.4.5FukaliteCa4[Si2O6][CO3](OH)2
17.4.6MeioniteCa4Al6Si6O24CO3
17.4.8CarletoniteKNa4Ca4Si8O18(CO3)4(OH,F) · H2O
17.4.9Iimoriite-(Y)Y2[SiO4][CO3]
17.4.10Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
17.4.11Caysichite-(Y)Ca2Y2Si4O10(CO3)3 · 4H2O
17.4.12Lepersonnite-(Gd)Ca(Gd,Dy)2(UO2)24(SiO4)4(CO3)8(OH)24 · 48H2O
17.4.13AshburtonitePb4Cu4(Si4O12)(HCO3)4(OH)3Cl · H2O
17.4.14Surite(Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2
17.4.15Tundrite-(Ce)Na2Ce2Ti(SiO4)(CO3)2O2
17.4.16Tundrite-(Nd)Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2

Other Names for Cancrinite

Name in Other Languages:
German:Cancrinit
Simplified Chinese:钙霞石
Spanish:Cancrinita
Traditional Chinese:鈣霞石

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 Cancrinite

Reference List:
Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 427-428.

Deer, W.A., R.A. Howie, and J. Zussman (1963) Rock-forming minerals, vol. 4, framework silicates, 310-320.

Foit, F.F., Jr. (1973) Cancrinite with a new superstructure from Bancroft, Ontario. Canadian Mineralogist: 11: 940-951.

Grundy, H.D. and I. Hassan (1982) The crystal structure of a carbonate-rich cancrinite. Canadian Mineralogist: 20: 239-251.

Canadian Mineralogist: 20: 239-251.

Zeitschrift für Kristallographie: 122: 407-422.

Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (1995) Handbook of Mineralogy, Volume II. Silica, Silicates. Mineral Data Publishing, Tucson, AZ, 904pp., 2 sub-volumes: 109.

Internet Links for Cancrinite

Specimens:
The following Cancrinite specimens are currently listed for sale on minfind.com.

Localities for Cancrinite

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.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: September 2, 2015 11:41:36 Page generated: September 1, 2015 13:33:58