Hendersonite Mineral Data

Hendersonite Mineral Data +

[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

General Hendersonite Information

Chemical Formula:

Ca1.3V6O16·6(H2O)

Composition:

Molecular Weight = 721.83 gm

Calcium 7.22 % Ca 10.10 % CaO

Vanadium 42.34 % V 75.59 % V₂O₅

Hydrogen 1.68 % H 14.97 % H₂O

Oxygen 48.76 % O

______ ______

100.00 % 100.66 % = TOTAL OXIDE

Empirical Formula:

Ca_1.3V⁵⁺₆O₁₆·6(H₂O)

Environment:

Sandstone-hosted uranium-vanadium deposits.

IMA Status:

Approved IMA 1962

Locality:

Eastside mines in San Juan County, New Mexico. Link to MinDat.org Location Data.

Name Origin:

Named after Edward P. Henderson of the U.S. National Museum, in recognition of his mineralogical studies of the vanadium-uranium deposits of the Colorado Plateau.

Search for Hendersonite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Hendersonite Crystallography

Axial Ratios:

a:b:c =3.454:1:5.2701

Cell Dimensions:

a = 12.4, b = 3.59, c = 18.92, Z = 2; V = 842.24 Den(Calc)= 2.85

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnam

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

By Intensity(I/I_o): 9.45(1), 3.113(0.36), 4.7(0.16),

Physical Properties of Hendersonite

Color:

Greenish black, Black.

Density:

2.77 - 2.79, Average = 2.78

Habit:

Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).

Habit:

Fibrous - Crystals made up of fibers.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

2.5 - Finger Nail

Luster:

Adamantine - Pearly

Streak:

brownish green

Optical Properties of Hendersonite

Gladstone-Dale:

CI meas= -0.166 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.137 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3743,KPDmeas= 0.3837,KC= 0.3291

Optical Data:

Biaxial (-), a=2, b=2.1, g=2.1, bire=0.1000, 2V(Calc)=0, 2V(Meas)=medium.

Pleochroism (x):

green.

Pleochroism (y):

brownish green.

Pleochroism (z):

brown.

Calculated Properties of Hendersonite

Electron Density:

r_electron=2.78 gm/cc
note: r_Hendersonite=2.85 gm/cc.

Fermion Index

Fermion Index = 0.00139
Boson Index = 0.99861

Photoelectric:

PE_Hendersonite= 8.94 barns/electron
U=PE_Hendersonite x r_electron= 24.85 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Hendersonite is Not Radioactive

Hendersonite Classification

Dana Class:

47.3.1.4 (47)Vanadium Oxysalts

(47.3)(Hydrated)

(47.3.1)Dana Group

47.3.1.1 Hewettite CaV6O16·9(H2O) P 2/m 2/m

47.3.1.2 Metahewettite CaV6O16·3(H2O) A2/m 2/m

47.3.1.3 Barnesite Na2V6O16·3(H2O) P 2/m 2/m

47.3.1.4 Hendersonite Ca1.3V6O16·6(H2O) Pnam 2/m 2/m 2/m

47.3.1.5 Grantsite Na4CaxV2xV12-2xO32·8(H2O) C 2/m 2/m

Strunz Class:

IV/G.12-30 IV - Oxides

IV/G - Vanadiumoxides (with V4+/5+) Layered vanadates. Typical Vanadiumbronzes

IV/G.12 - Barnessite - Metahewettite series

IV/G.12-10 Barnesite Na2V6O16·3(H2O) P 2/m 2/m

IV/G.12-20 Grantsite Na4CaxV2xV12-2xO32·8(H2O) C 2/m 2/m

IV/G.12-30 Hendersonite Ca1.3V6O16·6(H2O) Pnam 2/m 2/m 2/m

IV/G.12-40 Hewettite CaV6O16·9(H2O) P 2/m 2/m

IV/G.12-50 Metahewettite CaV6O16·3(H2O) A2/m 2/m

Other Hendersonite Information

References:

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

See Also:

Links to other databases for Hendersonite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

Search for Hendersonite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Hendersonite :
AA Mineral Specimens
B and L Minerals
Crystal Vaults
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Hendersonite Mineral Data :

Ask about Hendersonite 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 Hendersonite Specimen Label here :

Hendersonite

Ca1.3V6O16·6(H2O)
Dana No: 47.3.1.4 Strunz No: IV/G.12-30
Locality:

Notes: