Rosasite  Mineral Data

Rosasite Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About


General Rosasite Information

Help on Chemical  Formula: Chemical Formula: (Cu,Zn)2(CO3)(OH)2
Help on Composition: Composition: Molecular Weight = 222.04 gm
   Zinc      14.72 %  Zn   18.33 % ZnO
   Copper    42.93 %  Cu   53.74 % CuO
   Hydrogen   0.91 %  H     8.11 % H2O
   Carbon     5.41 %  C    19.82 % CO2
   Oxygen    36.03 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu1.5Zn0.5(CO3)(OH)2
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1908
Help on Locality: Locality: Rosas mine, Narcao, Cagliari, Sardegna (Sardinia), Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Rosasite Say ROSASITE
 

Rosasite Image

Click Here for Larger Rosasite Image in a New Browser Window Images:
Click Here for Larger Rosasite Image

Rosasite

Comments: Rosasite on malachite after azurite. Blocky crystals of azurite to 2.5 cm in size, completely altered to malachite, then coated by pale sky-blue rosasite.
Location: Silver Bill mine, Gleeson, Cochise Co., Arizona, USA. Scale: 4 x 7.5 x 2 cm.
© Dan Weinrich

Rosasite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3762:1:0.3373
Help on Cell Dimensions: Cell Dimensions: a = 12.873, b = 9.354, c = 3.156, Z = 4; beta = 110.36° V = 356.28 Den(Calc)= 4.14
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.708(1), 5.094(0.8), 2.601(0.7),
 

Physical Properties of Rosasite

Help on Cleavage: Cleavage: {010} Perfect, {100} Perfect
Help on Color: Color: Blue green, Light blue, Sky blue.
Help on Density: Density: 4 - 4.2, Average = 4.09
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Mammillary - Larger "breast-like" rounded forms resembling botryoidal (e.g. malachite).
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous - Silky
Help on Streak: Streak: light blue
 

Optical Properties of Rosasite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.001 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.011 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1877,KPDmeas= 0.1895,KC= 0.1897
Ncalc = 1.76 - 1.8
Help on Optical Data: Optical Data: Biaxial (-), a=1.672, b=1.829, g=1.83, bire=0.1580, 2V(Calc)=8, 2V(Meas)=0-5.
 

Calculated Properties of Rosasite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.93 gm/cc
note: Specific Gravity of Rosasite =4.10 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0068065726
Boson Index = 0.9931934274
Help on Photoelectric: Photoelectric: PERosasite = 26.27 barns/electron
U=PERosasite x rElectron Density= 103.34 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Rosasite is Not Radioactive
 

Rosasite Classification

Help on  Dana Class: Dana Class: 16a.03.01.01 (16a)Carbonates - Hydroxyl or Halogen
  (16a.03)where (A B)2 (XO3) Zq
  (16a.03.01)Rosasite Group
 
16a.03.01.01 Rosasite (Cu,Zn)2(CO3)(OH)2 P 21/a 2/m
 
16a.03.01.02 Glaukosphaerite (Cu,Ni)2(CO3)(OH)2 P 21/a 2/m
 
16a.03.01.03 Kolwezite (Cu,Co)2(CO3)(OH)2 P1 or P1 Tri
 
16a.03.01.04 Zincrosasite (Zn,Cu)2(CO3)(OH)2 P 21/a 2/m
 
16a.03.01.05 Mcguinnessite (Mg,Cu)2(CO3)(OH)2 P 2/a or P 21/a 2/m
Help on  Strunz Class: Strunz Class: 05.BA.10 05 - CARBONATES (NITRATES)
  05.B - Carbonates with additional anions, without H2O
  05.BA -With Cu, Co, Ni, Zn, Mg, Mn
 
05.BA.10 Nullaginite Ni2(CO3)(OH)2 P 21/m,P 21 Mono
 
05.BA.10 Georgeite Cu5(CO3)3(OH)4•6(H2O) None
 
05.BA.10 Malachite Cu2(CO3)(OH)2 P 21/a 2/m
 
05.BA.10 Glaukosphaerite (Cu,Ni)2(CO3)(OH)2 P 21/a 2/m
 
05.BA.10 Mcguinnessite (Mg,Cu)2(CO3)(OH)2 P 2/a or P 21/a 2/m
 
05.BA.10 Kolwezite (Cu,Co)2(CO3)(OH)2 P1 or P1 Tri
 
05.BA.10 Pokrovskite Mg2(CO3)(OH)2•0.5(H2O) P 21/a 2/m
 
05.BA.10 Rosasite (Cu,Zn)2(CO3)(OH)2 P 21/a 2/m
 
05.BA.10 Zincrosasite (Zn,Cu)2(CO3)(OH)2 P 21/a 2/m
 
05.BA.10 Chukanovite! Fe2(CO3)(OH)2 P 21/a 2/m
 

Other Rosasite Information

Help on References: References: NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Rosasite :
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 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - YupRocks

Search for Rosasite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Rosasite :

A Bijoux Google Search for Rosasite
Adam's Minerals Google Search for Rosasite
Cape Minerals Google Search for Rosasite
Dakota Matrix Minerals Google Search for Rosasite
Excalibur Mineral Corp. Google Search for Rosasite
Exceptional Minerals Google Search for Rosasite
John Betts Fine Minerals Search for Rosasite
McDougall Minerals Google Search for Rosasite
Mineral News Website Link
Rock and Mineral Shows Google Search for Rosasite
Weinrich Minerals, Inc. Google Search for Rosasite

Ask about Rosasite 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 Espaņol

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

Rosasite

(Cu,Zn)2(CO3)(OH)2
Dana No: 16a.03.01.01 Strunz No: 05.BA.10
Locality:

 

Notes: