Caresite Mineral Data

Caresite Mineral Data

[Mineral Specimens] [Our best] [Rare specimens] [Latest updates] [Home Page]
Fine Minerals, Moldavites, Jewellery, Meteorites and Fossils
Rockshop.cz is based in Prague, Czech republic

General Caresite Information

Chemical Formula:

Fe++4Al2(OH)12CO3·3(H2O)

Composition:

Molecular Weight = 595.49 gm

Aluminum 9.06 % Al 17.12 % Al₂O₃

Iron 37.51 % Fe 48.26 % FeO

Hydrogen 3.05 % H 27.23 % H₂O

Carbon 2.02 % C 7.39 % CO₂

Oxygen 48.36 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Fe²⁺₄Al₂(CO₃)(OH)₁₂·3(H₂O)

Environment:

In silicate and carbonate cavities and in nepheline syenite pegmatites.

IMA Status:

Approved IMA 1997

Locality:

Poudrette quarry, Mont Saint-Hilaire, Rouville County, Quebec, as well as in the Corporation quarry, Montreal, Quebec, Canada. Link to MinDat.org Location Data.

Name Origin:

Named after Steve Cares (1909-) and Janet Cares (1921-) of Sudbury, MA, Canada, who found the mineral.

Synonym:

IMA1992-030

Caresite Image

Images:

Caresite

Comments: Tabular brownish-yellow crystals of caresite in matrix.
Location: Poudrette quarry, Mt Saint-Hilaire, Rouville Co., Qu?bec, Canada. Scale: Picture size 2.5 mm.
© Thomas Witzke / Abraxas-Verlag

Caresite Crystallography

Axial Ratios:

a:c = 1:2.08051

Cell Dimensions:

a = 10.805, c = 22.48, Z = 6; V = 2,272.88 Den(Calc)= 2.61

Crystal System:

Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: P 3₁12 or P 3₂12

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 7.49(1), 3.746(0.5), 2.625(0.4),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: [ 1 1 0] [ 0 0 1]

Warning: this large pop-up is very compute intensive and may not work well with some computers.

Physical Properties of Caresite

Cleavage:

[001] Perfect

Color:

Colorless, Yellow, Orange brown.

Density:

2.57 - 2.59, Average = 2.58

Diaphaniety:

Transparent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

2 - Gypsum

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Caresite

Gladstone-Dale:

CI meas= 0.033 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.044 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2239,KPDmeas= 0.2266,KC= 0.2343

Optical Data:

Uniaxial (-), e=1.57, w=1.599, bire=0.0290.

Calculated Properties of Caresite

Electron Density:

r_electron=2.58 gm/cc
note: r_Caresite=2.58 gm/cc.

Fermion Index

Fermion Index = 0.00841
Boson Index = 0.99159

Photoelectric:

PE_Caresite= 11.27 barns/electron
U=PE_Caresite x r_electron= 29.11 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Caresite is Not Radioactive

Caresite Classification

Dana Class:

16b.6.4.3 (16b)Carbonates - Hydroxyl or Halogen

(16b.6)Dana Type

(16b.6.4)Dana Group

16b.6.4.1 Quintinite-2H Mg4Al2(OH)12CO3·4(H2O) P 6₃22 6 2 2

16b.6.4.2 Quintinite-3T Mg4Al2(OH)12CO3·4(H2O) P 3₁12,P 3₂12 3 2

16b.6.4.3 Caresite Fe4Al2(OH)12CO3·3(H2O) P 3₁12 or P 3₂12 3 2

16b.6.4.4 Charmarite-2H Mn4Al2(CO3)(OH)12·3(H2O) P 6₃22 6 2 2

16b.6.4.5 Charmarite-3T Mn4Al2(CO3)(OH)12·3(H2O) P 3₁12 3 2

Strunz Class:

V/E.02-07 V - Nitrates, Carbonates and Borates

V/E - Water-bearing carbonates with unfamiliar anions

V/E.02 - Manasseite group

V/E.02-05 Quintinite-2H Mg4Al2(OH)12CO3·4(H2O) P 6₃22 6 2 2

V/E.02-05* Quintinite-3T Mg4Al2(OH)12CO3·4(H2O) P 3₁12,P 3₂12 3 2

V/E.02-07 Caresite Fe4Al2(OH)12CO3·3(H2O) P 3₁12 or P 3₂12 3 2

V/E.02-08 Charmarite-2H Mn4Al2(CO3)(OH)12·3(H2O) P 6₃22 6 2 2

V/E.02-08* Charmarite-3T Mn4Al2(CO3)(OH)12·3(H2O) P 3₁12 3 2

V/E.02-09 Zaccagnaite! Zn4Al2(OH)12(CO3)·3(H2O) P 6₃/mmc 6/m 2/m 2/m

V/E.02-10 Manasseite Mg6Al2(CO3)(OH)16·4(H2O) P 6₃/mmc 6/m 2/m 2/m

V/E.02-20 Chlormagaluminite (Mg,Fe)4Al2(OH)12(Cl2,CO3)·2(H2O) P 6/mcm, P 6cm, P 6c2 Hex

V/E.02-30 Barbertonite Mg6Cr2(CO3)(OH)16·4(H2O) P 6₃/mmc 6/m 2/m 2/m

V/E.02-40 Sjogrenite Mg6Fe2(CO3)(OH)14·5(H2O) P 6₃/mmc 6/m 2/m 2/m

Other Caresite Information

References:

NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.83,p1347,1998) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Caresite :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas

Search for Caresite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Caresite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Caresite Mineral Data :

Ask about Caresite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Caresite Specimen Label here :

Caresite

Fe++4Al2(OH)12CO3·3(H2O)
Dana No: 16b.6.4.3 Strunz No: V/E.02-07
Locality:

Notes: