Celestine Mineral Data

Celestine Mineral Data +

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General Celestine Information

Chemical Formula:

SrSO4

Composition:

Molecular Weight = 183.68 gm

Strontium 47.70 % Sr 56.41 % SrO

Sulfur 17.46 % S 43.59 % SO₃

Oxygen 34.84 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Sr(SO₄)

Environment:

Sedimentary rocks.

IMA Status:

Valid Species (Pre-IMA) 1791

Locality:

Kelley Island, Lake Erie. Link to MinDat.org Location Data.

Name Origin:

From the Latin coelestis, meaning "celestial."

Synonym:

Celestite

ICSD 28055

PDF 5-593

Celestine Image

Images:

Celestine

Comments: Transparent blue orthorhombic crystals of celestine, some doubly terminated to 15 mm in size, on a limestone matrix.
Location: Clay Center, Ohio, USA. Scale: 5 x 9 x 2.5 cm.
© Dan Weinrich

Celestine Crystallography

Axial Ratios:

a:b:c =1.5618:1:1.2828

Cell Dimensions:

a = 8.359, b = 5.352, c = 6.866, Z = 4; V = 307.17 Den(Calc)= 3.97

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbnm

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

By Intensity(I/I_o): 2.972(1), 3.295(0.98), 2.731(0.63),

Forms:

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Forms: [ 0 0 1] [ 0 1 1] [ 1 0 1] [ 2 1 0]

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Crystal Structure:

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Miyake M , Minato I , Morikawa H , Iwai S I , American Mineralogist , 63 (1978) p.506-510, Crystal structure and sulphate force constants of barite, celestite, and, anglesite

View Additional jPOWD Structure files for Celestine
[1] [2] [3] [4]

Physical Properties of Celestine

Cleavage:

[001] Perfect, [210] Good

Color:

Blue, Brown, Colorless, Green, Gray.

Density:

3.9 - 4, Average = 3.95

Diaphaniety:

Transparent to subtranslucent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Crystalline - Coarse - Occurs as well-formed coarse sized crystals.

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

3-3.5 - Calcite-Copper Penny

Luminescence:

None.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Celestine

Gladstone-Dale:

CI meas= 0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1575,KPDmeas= 0.1583,KC= 0.1589

Optical Data:

Biaxial (+), a=1.621-1.622, b=1.623-1.624, g=1.63-1.632, bire=0.0090-0.0100, 2V(Calc)=54-58, 2V(Meas)=50-51. Dispersion r < v.

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Celestine

Electron Density:

r_electron=3.70 gm/cc
note: r_Celestine=3.95 gm/cc.

Fermion Index

Fermion Index = 0.03486
Boson Index = 0.96514

Photoelectric:

PE_Celestine= 54.93 barns/electron
U=PE_Celestine x r_electron= 203.17 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Celestine is Not Radioactive

Celestine Classification

Dana Class:

28.3.1.2 (28)Anhydrous Acid and Sulfates

(28.3)(A++) XO4

(28.3.1)Barite Group

28.3.1.1 Barite BaSO4 Pbnm 2/m 2/m 2/m

28.3.1.2 Celestine SrSO4 Pbnm 2/m 2/m 2/m

28.3.1.3 Anglesite PbSO4 Pbnm 2/m 2/m 2/m

Strunz Class:

VI/A.09-10 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/A - Waterfree sulfates [SO4]2- without unfamiliar anions. cations of very big size

VI/A.09 - Barite group

VI/A.09-10 Celestine SrSO4 Pbnm 2/m 2/m 2/m

VI/A.09-20 Barite BaSO4 Pbnm 2/m 2/m 2/m

VI/A.09-30 Hashemite Ba(Cr,S)O4 P nma 2/m 2/m 2/m

VI/A.09-40 Kerstenite* PbSeO4(?) P nma 2/m 2/m 2/m

VI/A.09-50 Anglesite PbSO4 Pbnm 2/m 2/m 2/m

Other Celestine Information

References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65)

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

Celestine

SrSO4
Dana No: 28.3.1.2 Strunz No: VI/A.09-10
Locality:

Notes: