Calderite Mineral Data

General Calderite Information

Chemical Formula:

(Mn++,Ca)3(Fe+++,Al)2(SiO4)3

Composition:

Molecular Weight = 527.18 gm

Calcium 5.70 % Ca 7.98 % CaO

Manganese 23.45 % Mn 30.28 % MnO

Aluminum 2.56 % Al 4.84 % Al₂O₃

Iron 15.89 % Fe 22.72 % Fe₂O₃

Silicon 15.98 % Si 34.19 % SiO₂

Oxygen 36.42 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺_2.25Ca_0.75Fe³⁺_1.5Al_0.5(SiO₄)₃

Environment:

In a manganese deposit.

IMA Status:

Valid Species (Pre-IMA) 1850

Locality:

From Katkamsandi, Hazaribagh district, Bihar, and at Netra, Balaghat district, Madhya Pradesh, India. Link to MinDat.org Location Data.

Name Origin:

For James Calder, an early writer on the geology of India; name first applied to a rock, later transferred to its predominant mineral.

Calderite Image

Images:

Calderite

Comments: Dark red brown translucent crystalline calderite.
Location: Hazaribag, Bihar, India. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Calderite Crystallography

Cell Dimensions:

a = 11.819, Z = 8; V = 1,650.98 Den(Calc)= 4.24

Crystal System:

Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d

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

By Intensity(I/I_o): 1.574(1), 2.62(1), 2.92(0.9),

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: ( 2 1 1)

Warning: this java applet does not work in some browsers because of security restrictions.

Physical Properties of Calderite

Cleavage:

None

Color:

Dark yellow, Reddish yellow.

Density:

4.08

Diaphaneity:

Transparent to Translucent

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Calderite

Gladstone-Dale:

CI meas= 0.067 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.102 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2057,KPDmeas= 0.2137,KC= 0.2291
Ncalc = 1.93 - 1.97

Optical Data:

Isotropic, n=1.872.

Calculated Properties of Calderite

Electron Density:

Bulk Density (Electron Density)=3.94 gm/cc
note: Specific Gravity of Calderite =4.08 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Calderite= 12.20 barns/electron
U=PE_Calderite x rElectron Density= 48.09 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Calderite is Not Radioactive

Calderite Classification

Dana Class:

51.04.03a.06 (51)Nesosilicate Insular SiO4 Groups Only

(51.04)with cations in [6] and >[6] coordination

(51.04.03a)Garnet group (Pyralspite series)

51.04.03a.01 Pyrope Mg3Al2(SiO4)3 I a3d 4/m 3 2/m

51.04.03a.02 Almandine Fe3Al2(SiO4)3 I a3d 4/m 3 2/m

51.04.03a.03 Spessartine Mn3Al2(SiO4)3 I a3d 4/m 3 2/m

51.04.03a.04 Knorringite Mg3Cr2(SiO4)3 I a3d 4/m 3 2/m

51.04.03a.05 Majorite Mg3(Fe,Al,Si)2(SiO4)3 I a3d 4/m 3 2/m

51.04.03a.06 Calderite (Mn,Ca)3(Fe,Al)2(SiO4)3 I a3d 4/m 3 2/m

Strunz Class:

09.AD.25 09 - SILICATES (Germanates)

09.A - Nesosilicates

09.AD -Nesosilicates without additional anions;

09.AD.25 Almandine Fe3Al2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Calderite (Mn,Ca)3(Fe,Al)2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Andradite Ca3Fe2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Goldmanite Ca3(V,Al,Fe)2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Hibschite Ca3Al2(SiO4)3-x(OH)4x(x=0.2-1.5) I a3d 4/m 3 2/m

09.AD.25 Knorringite Mg3Cr2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Grossular Ca3Al2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Henritermierite Ca3(Mn,Al)2(SiO4)2(OH)4 I 4₁/acd 4/m 2/m 2/m

09.AD.25 Katoite Ca3Al2(SiO4)3-x(OH)4xx=1.5-3 I a3d 4/m 3 2/m

09.AD.25 Majorite Mg3(Fe,Al,Si)2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Kimzeyite Ca3(Zr,Ti)2(Si,Al,Fe)3O12 I a3d 4/m 3 2/m

09.AD.25 Morimotoite Ca3TiFeSi3O12 I a3d 4/m 3 2/m

09.AD.25 Pyrope Mg3Al2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Spessartine Mn3Al2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Schorlomite Ca3(Ti,Fe,Al)2[(Si,Fe,Fe)O4]3 I a3d 4/m 3 2/m

09.AD.25 Uvarovite Ca3Cr2(SiO4)3 I a3d 4/m 3 2/m

09.AD.25 Wadalite Ca6Al5Si2O16Cl3 I 43d 4 3m

09.AD.25 Holtstamite! Ca3(Al,Mn)2(SiO4)2(OH)4 I 4₁/acd 4/m 2/m 2/m

Other Calderite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Calderite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Calderite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Calderite :

Ask about Calderite 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 Calderite Specimen Label here :

Calderite

(Mn++,Ca)3(Fe+++,Al)2(SiO4)3
Dana No: 51.04.03a.06 Strunz No: 09.AD.25
Locality:

Notes:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.