Calderite Mineral Data

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 - HexoctahedralH-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),

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Physical Properties of Calderite

Cleavage:

None

Color:

Dark yellow, Reddish yellow.

Density:

4.08

Diaphaniety:

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

Optical Data:

Isotropic, n=1.872.

Calculated Properties of Calderite

Electron Density:

r_electron=3.94 gm/cc
note: r_Calderite=4.08 gm/cc.

Fermion Index

Fermion Index = 0.01108
Boson Index = 0.98892

Photoelectric:

PE_Calderite= 12.20 barns/electron
U=PE_Calderite x r_electron= 48.09 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Calderite is Not Radioactive

Calderite Classification

Dana Class:

51.4.3a.6 (51)Nesosilicate Insular SiO4 Groups Only

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

(51.4.3a)Garnet group (Pyralspite series)

51.4.3a.1 Pyrope Mg3Al2(SiO4)3 I a3d 4/m 3 2/m

51.4.3a.2 Almandine Fe3Al2(SiO4)3 I a3d 4/m 3 2/m

51.4.3a.3 Spessartine Mn3Al2(SiO4)3 I a3d 4/m 3 2/m

51.4.3a.4 Knorringite Mg3Cr2(SiO4)3 I a3d 4/m 3 2/m

51.4.3a.5 Majorite Mg3(Fe,Al,Si)2(SiO4)3 I a3d 4/m 3 2/m

51.4.3a.6 Calderite (Mn,Ca)3(Fe,Al)2(SiO4)3 I a3d 4/m 3 2/m

Strunz Class:

VIII/A.08-40 VIII - Silicates

VIII/A - Nesosilicates with [SiO4]4-groups, cations of octahedral and cubic orientation [8+6]

VIII/A.08 - Garnet group, Pyrope - Henritermierite

VIII/A.08-10 Pyrope Mg3Al2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-20 Almandine Fe3Al2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-30 Spessartine Mn3Al2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-40 Calderite (Mn,Ca)3(Fe,Al)2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-50 Knorringite Mg3Cr2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-60 Majorite Mg3(Fe,Al,Si)2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-70 Grossular Ca3Al2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-80 Hibschite Ca3Al2(SiO4)3-x(OH)4x(x=0.2-1.5) I a3d 4/m 3 2/m

VIII/A.08-90 Katoite Ca3Al2(SiO4)3-x(OH)4xx=1.5-3 I a3d 4/m 3 2/m

VIII/A.08-100 Hydrougrandite? (Ca,Mg,Fe)3(Fe,Al)2(SiO4)3-x(OH)4x I a3d 4/m 3 2/m

VIII/A.08-110 Andradite Ca3Fe2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-120 Schorlomite Ca3(Ti,Fe,Al)2[(Si,Fe,Fe)O4]3 I a3d 4/m 3 2/m

VIII/A.08-125 Morimotoite Ca3TiFeSi3O12 I a3d 4/m 3 2/m

VIII/A.08-130 Uvarovite Ca3Cr2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-138 Yamatoite! (Mn,Ca)3(V,Al)2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-140 Goldmanite Ca3(V,Al,Fe)2(SiO4)3 I a3d 4/m 3 2/m

VIII/A.08-150 Kimzeyite Ca3(Zr,Ti)2(Si,Al,Fe)3O12 I a3d 4/m 3 2/m

VIII/A.08-160 Henritermierite Ca3(Mn,Al)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)

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

Calderite

(Mn++,Ca)3(Fe+++,Al)2(SiO4)3
Dana No: 51.4.3a.6 Strunz No: VIII/A.08-40
Locality:

Notes: