Juanite Mineral Data (original) (raw)

General Juanite Information

Help on Chemical Formula: Chemical Formula:

Ca10Mg4Al2Si11O39•4(H2O) (?)

Help on Composition: Composition:

Molecular Weight = 1,556.94 gm

Calcium 25.74 % Ca 36.02 % CaO

Magnesium 6.24 % Mg 10.35 % MgO

Aluminum 3.47 % Al 6.55 % Al2O3

Silicon 19.84 % Si 42.45 % SiO2

Hydrogen 0.52 % H 4.63 % H2O

Oxygen 44.19 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Ca10Mg4Al2Si11O39•4(H2O)

Help on Environment: Environment:

Alteration product of melilite.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1932

Help on Locality: Locality:

Iron Hill, Powderhorn-Cebolla district, Gunnison County, Colorado. USA. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the San Juan Mountains, Colorado, USA.

Help on Name Pronunciation: Name Pronunciation:

Juanite Say JUANITE

Juanite Image

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

Click Here for Larger Juanite Image Juanite Comments: Light greenish translucent grains of juanite with dark magnetite. Location: Iron Hill, Gunnison Co., Colorado, USA.Scale: Picture size 1 cm. © Tom Loomis / Dakota Matrix

Juanite Crystallography

Help on Crystal System: Crystal System:

OrthorhombicSpace Group: Unk

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 1.93(1), 2.98(1), 3.27(1),

Physical Properties of Juanite

Help on Color: Color:

White, Pistachio green, Brown.

Help on Density: Density:

3.01 - 3.28, Average = 3.14

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Habit: Habit:

Fibrous - Crystals made up of fibers.

Help on Hardness: Hardness:

5.5 - Knife Blade

Optical Properties of Juanite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.044 (Good) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2045,KC= 0.2139
Ncalc = 1.64 - 1.7

Help on Optical Data: Optical Data:

Biaxial (+), a=1.64, b=1.642, g=1.647, bire=0.0070, 2V(Calc)=66, 2V(Meas)=50.

Calculated Properties of Juanite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.15 gm/cc
note: Specific Gravity of Juanite =3.15 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Help on Photoelectric: Photoelectric:

PEJuanite = 4.15 barns/electron
U=PEJuanite x rElectron Density= 13.09 barns/cc.

Help on Radioactivity: Radioactivity:

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

Juanite Classification

Help on Dana Class: Dana Class:

78.07.06.01 (78)Unclassified silicates

(78.07)wholly unclassified silicates

(78.07.06)Dana Group

78.07.06.01 Juanite Ca10Mg4Al2Si11O39•4(H2O)(?) Unk Ortho

Help on Strunz Class: Strunz Class:

09.HA.70 09 - SILICATES (Germanates)

09.H - Unclassified Silicates

09.HA -With alkali and alkali-earth Elements

09.HA.70 Juanite Ca10Mg4Al2Si11O39•4(H2O)(?) Unk Ortho

Other Juanite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

Help on See Also: See Also:

Links to other databases for Juanite :
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

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Ask about Juanite here :
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Print or Cut-and-Paste your Juanite Specimen Label here :

Juanite

Ca10Mg4Al2Si11O39•4(H2O) (?)
Dana No: 78.07.06.01 Strunz No: 09.HA.70
Locality:

Notes: