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Rhodonite Mineral Data

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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 Name Pronunciation: Name Pronunciation: Rhodonite + Pronunciation Say RHODONITE
Help on Synonym: Synonym: Fowlerite - Zn rich
  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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  Akatoreite   Rhodonite

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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  Caryinite   Rhodonite

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 - Pinacoidal H-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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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 Diaphaneity: Diaphaneity: 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: Non-fluorescent.
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
Ncalc = 1.71 - 1.75
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.
 

Calculated Properties of Rhodonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.47 gm/cc
note: Specific Gravity of Rhodonite =3.60 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PERhodonite = 11.12 barns/electron
U=PERhodonite x rElectron Density= 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: 65.04.01.01 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.04)with chains P=5
  (65.04.01)Rhodonite group
 
65.04.01.01 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1
 
65.04.01.02 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1
 
65.04.01.03 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1
 
65.04.01.04 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1
 
65.04.01.05 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1
 
65.04.01.06 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri
 
65.04.01.07 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1
 
65.04.01.08 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1
Help on Strunz Class: Strunz Class: 09.DK.05 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DK -Inosilicates with 5-periodic single chains
 
09.DK.05 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1
 
09.DK.05 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri
 
09.DK.05 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1
 
09.DK.05 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1
 
09.DK.05 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1
 
09.DK.05 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1
 
09.DK.05 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1
 
09.DK.05 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1
 

Other Rhodonite Information
Help on See Also: See Also: Links to other databases for Rhodonite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Franklin Minerals(Dunn)
7 - Franklin Minerals(Palache)
8 - GeoScienceWorld
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 - Mineral and Gemstone Kingdom
17 - Mineralienatlas (Deutsch)
18 - Online Mineral Museum
19 - Philatelic Mineralogy
20 - QUT Mineral Atlas
21 - Ruff.Info
22 - Scandinavian mineral gallery
23 - Tradeshop.com - The Rainbow of Gems
24 - University of Colorado - Mineral Structure Data
25 - WWW-MINCRYST

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Rhodonite

(Mn++,Fe++,Mg,Ca)SiO3
Dana No: 65.04.01.01 Strunz No: 09.DK.05
Locality:

 

Notes:

 
 

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