Ruizite Mineral Data

General Ruizite Information

Chemical Formula:

CaMn+++Si2O6(OH)•2(H2O)

Composition:

Molecular Weight = 300.22 gm

Calcium 13.35 % Ca 18.68 % CaO

Manganese 18.30 % Mn 26.29 % Mn₂O₃

Silicon 18.71 % Si 40.03 % SiO₂

Hydrogen 1.68 % H 15.00 % H₂O

Oxygen 47.96 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaMn³⁺Si₂O₆(OH)•2(H₂O)

Environment:

In veinlets and on fracture surfaces in metalimestones, formed during cooling of a high-temperature calc-silicate assemblage under oxidizing conditions

IMA Status:

Approved IMA 1977

Locality:

In the Christmas copper mine, Christmas, Gila Co., Arizona, USA. Link to MinDat.org Location Data.

Name Origin:

For Joe Ana Ruiz, of Mammoth, Arizona, USA, collector of microscopic minerals, who discovered the mineral.

Name Pronunciation:

Ruizite

Synonym:

ICSD 30691

PDF 29-350

Ruizite Image

Images:

Ruizite Inesite

Comments: 1- 3 mm crystal spray of red orange ruizite in an exposed vug in pink inesite.
Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Picture size 1 cm.
© John Veevaert

Images:

Ruizite

Comments: Deep reddish brown crystals of ruizite as radial, acicular sprays to 0.1mm.
Location: Christmas mine, Gila Co., Arizona, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Ruizite Crystallography

Axial Ratios:

a:b:c =1.9367:1:1.4635

Cell Dimensions:

a = 11.95, b = 6.17, c = 9.03, Z = 4; beta = 99.375° V = 656.90 Den(Calc)= 3.04

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/c

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

By Intensity(I/I_o): 11.951(1), 4.19(0.7), 3.116(0.6),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Moore P B , Shen J , Araki T , American Mineralogist , 70 (1985) p.171-181, Crystal chemistry of the (M2)3+ phi2 sheet: Structural principles and crystal, structures of ruizite, macfallite and orientite

Physical Properties of Ruizite

Color:

Brown, Orange.

Density:

2.9

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Hardness:

5 - Apatite

Streak:

apricot yellow

Optical Properties of Ruizite

Gladstone-Dale:

CI meas= 0.039 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.083 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2316,KPDmeas= 0.2428,KC= 0.2526
Ncalc = 1.73 - 1.77

Optical Data:

Biaxial (-), a=1.663, b=1.715, g=1.734, bire=0.0710, 2V(Calc)=60, 2V(Meas)=60.

Calculated Properties of Ruizite

Electron Density:

Bulk Density (Electron Density)=2.90 gm/cc
note: Specific Gravity of Ruizite =2.90 gm/cc.

Fermion Index:

Fermion Index = 0.009150463
Boson Index = 0.990849537

Photoelectric:

PE_Ruizite= 6.94 barns/electron
U=PE_Ruizite x rElectron Density= 20.11 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ruizite is Not Radioactive

Ruizite Classification

Dana Class:

57.02.02.01 (57)Sorosilicate Insular Si3O10 and Larger Noncyclic Groups

(57.02)with [Si4O13] groups

(57.02.02)Dana Group

57.02.02.01 Ruizite CaMnSi2O6(OH)•2(H2O) P 2₁/c 2/m

Strunz Class:

09.BJ.35 09 - SILICATES (Germanates)

09.B - Sorosilicates

09.BJ -Sorosilicates with Si3O10, Si4O11, etc

09.BJ.35 Ruizite CaMnSi2O6(OH)•2(H2O) P 2₁/c 2/m

Other Ruizite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Ruizite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Ruizite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Ruizite :

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

Ask about Ruizite 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 Español

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

Ruizite

CaMn+++Si2O6(OH)•2(H2O)
Dana No: 57.02.02.01 Strunz No: 09.BJ.35
Locality:

Notes: