Rhodonite Mineral Data + Say RHODONITE

General Rhodonite Information
Help on Chemical Formula: Chemical Formula: (Mn++,Fe++,Mg,Ca)SiO3
Help on Composition: Composition: Molecular Weight = 129.13 gm
   Calcium     1.55 %  Ca    2.17 % CaO
   Magnesium   0.38 %  Mg    0.62 % MgO
   Manganese  38.29 %  Mn   49.44 % MnO
   Iron        0.86 %  Fe    1.11 % FeO
   Silicon    21.75 %  Si   46.53 % SiO2
   Oxygen     37.17 %  O
             ______        ______ 
             100.00 %       99.88 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+0.9Fe2+0.02Mg0.02Ca0.05SiO3
Help on Environment: Environment: Hydrothermal, metamorphic and, metasomatic rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1819
Help on Locality: Locality: Lauthental and Elbingerrode, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek rhodos - "rose colored."
Help on Synonym: Synonym: Fowlerite - Zn
  ICSD 200452
  PDF 13-138
 

Rhodonite Image

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Rhodonite

Comments: Light red rhodonite and minor quartz.
Location: Chiurucu mine, Dos de Mayo, Peru. Scale: 3 x 3.5 cm.
© Fabre Minerals
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Rhodonite   Akatoreite

Comments: Brown akatoreite in pink rhodonite.
Location: Akatore Creek, Eastern Otago Peninsula, South Island, New Zealand. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
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Rhodonite   Caryinite

Comments: Yellow crystalline caryinite with pink rhodonite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
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Rhodonite

Comments: Deep red blocky prismatic crystals of rhodonite to 3cm.
Location: Broken Hill mine, New South Wales, Australia. Scale: 6.5 x 5 x 4cm.
© Tom Loomis / Dakota Matrix

Rhodonite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.872:1:1.5953
Help on Cell Dimensions: Cell Dimensions: a = 6.68, b = 7.66, c = 12.22, Z = 10; alpha = 111.1°, beta = 86.016°, gamma = 93.203° V = 581.04 Den(Calc)= 3.69
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.772(1), 2.924(0.65), 2.98(0.65),
Help on Forms: Forms:

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

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Peacor D R , Essene E J , Brown P E , Winter G A , American Mineralogist , 63 (1978) p.1137-1142, The crystal chemistry and petrogenesis of a magnesian rhodonite

View Additional jPOWD Structure files for Rhodonite
[1] [10] [11] [12] [13] [14] [15] [16] [2] [3] [4] [5] [6] [7] [8] [9]
 

Physical Properties of Rhodonite

Help on Cleavage: Cleavage: [110] Perfect, [110] Perfect
Help on Color: Color: Pink, Rose red, Brownish red, Black, Yellow.
Help on Density: Density: 3.5 - 3.7, Average = 3.6
Help on Diaphaniety: Diaphaniety: Transparent to translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Rhodonite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1978,KPDmeas= 0.2027,KC= 0.2021
Help on Optical Data: Optical Data: Biaxial (+), a=1.711-1.738, b=1.714-1.741, g=1.724-1.751, bire=0.0130, 2V(Calc)=58, 2V(Meas)=58-73. Dispersion none.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Rhodonite

Help on Electron Density: Electron Density:

relectron=3.47 gm/cc
note: rRhodonite =3.60 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.01091
Boson Index = 0.98909
Help on Photoelectric: Photoelectric:

PERhodonite = 11.12 barns/electron
U=PERhodonite x relectron= 38.61 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Rhodonite is Not Radioactive
 

Rhodonite Classification
Help on Dana Class: Dana Class: 65.4.1.1 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.4)with chains P=5
  (65.4.1)Rhodonite group
 
65.4.1.1 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1
 
65.4.1.2 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1
 
65.4.1.3 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1
 
65.4.1.4 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1
 
65.4.1.5 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1
 
65.4.1.6 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri
 
65.4.1.7 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1
 
65.4.1.8 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1
Help on Strunz Class: Strunz Class: VIII/F.27-10 VIII - Silicates
  VIII/F - Inosilicates (chain and band) Five chains [Si5O15]10-
  VIII/F.27 - Rhodonite - Inesite series
 
VIII/F.27-10 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1
 
VIII/F.27-20 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1
 
VIII/F.27-30 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1
 
VIII/F.27-35 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1
 
VIII/F.27-40 Santaclaraite CaMn4Si5O14(OH)2·(H2O) P1 1
 
VIII/F.27-50 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1
 
VIII/F.27-60 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1
 
VIII/F.27-70 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1
 
VIII/F.27-80 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri
 
VIII/F.27-90 Inesite Ca2Mn7Si10O28(OH)2·5(H2O) P1 1
 

Other Rhodonite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65)
Help on See Also: See Also: Links to other databases for Rhodonite :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Applied Mineralogy 4 -Athena 5 - Crocoite.com Mineral Locations 6 - EUROmin Project 7 - Franklin Minerals(Dunn) 8 - Franklin Minerals(Palache) 9 - Glendale Community College 10 -Google Images 11 -Google Scholar 12 -Handbook of Mineralogy (MinSocAm) 13 -Handbook of Mineralogy (UofA) 14 - HyperPhysics 15 -MinDAT 16 -MinMax(Deutsch) 17 -MinMax(English) 18 - Mineral and Gemstone Kingdom 19 -Mineralienatlas (Deutsch) 20 - Philatelic Mineralogy 21 -QUT Mineral Atlas 22 - Scandinavian mineral gallery 23 - Tradeshop.com - The Rainbow of Gems 24 -University of Colorado - Mineral Structure Data 25 - WWW-MINCRYST 26 -École des Mines de Paris

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Rhodonite

(Mn++,Fe++,Mg,Ca)SiO3
Dana No: 65.4.1.1 Strunz No: VIII/F.27-10
Locality:

 

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