Kochsandorite Mineral Data

Kochsandorite Mineral Data

[What's New] [Mineral Galleries] [Sale Items] [About Us] [Contacts]
At AA Mineral Specimens, we source quality Mineral Specimens, Fossils, Gemstones,
Decorative Stones, Lapidary Material and Specimen Sets world-wide

General Kochsandorite Information

Chemical Formula:

CaAl2(CO3)2(OH)4·H2O

Composition:

Molecular Weight = 300.10 gm

Calcium 13.35 % Ca 18.69 % CaO

Aluminum 17.98 % Al 33.98 % Al₂O₃

Hydrogen 2.02 % H 18.01 % H₂O

Carbon 8.00 % C 29.33 % CO₂

Oxygen 58.64 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaAl₂(CO₃)₂(OH)₄·(H₂O)

Environment:

Dresserite group

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Mány coal deposit, Tatabánya, Hungary Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

Synonym:

IMA2004-037

Kochsandorite Image

Images:

Kochsandorite

Comments: Pearly circles of radiating white microcrystals of kochsandorite on coal.
Location: Many coal deposit, Bicske-Zsambeki Basin, Tatabanya. Scale: 2.5x1.7x1.1 cm.
© Richard Dale / Dale Minerals

Images:

Kochsandorite

Comments: White fibers of kochandorite on coal-marl matrix.
Location: M?ny coal field, Tatab?nya, Hungary. Scale: See Image.
© Jeff Weissman / Photographic Guide to Mineral Species

Kochsandorite Crystallography

Axial Ratios:

a:b:c =2.7837:1:1.6297

Cell Dimensions:

a = 15.564, b = 5.591, c = 9.112, Z = 4; V = 792.91 Den(Calc)= 2.51

Crystal System:

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

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

By Intensity(I/I_o): 5.92(1), 7.86(0.87), 4.37(0.86),7.78(0.62), 2.957(0.48), 2.946(0.44), 1.902(0.26), 2.569(0.17),

Optical Properties of Kochsandorite

Optical Data:

NCalc= 1.58 - from Gladstone-Dale relationship (KC = 0.2327) where Ncalc=Dcalc*KC+1

Calculated Properties of Kochsandorite

Electron Density:

r_electron=2.54 gm/cc
note: r_{Kochsandorite}=2.51 gm/cc.

Fermion Index

Fermion Index = 0.00134
Boson Index = 0.99866

Photoelectric:

PE_{Kochsandorite}= 2.30 barns/electron
U=PE_{Kochsandorite} x r_electron= 5.84 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Kochsandorite is Not Radioactive

Kochsandorite Classification

Dana Class:

16b.2.1.5 (16b)Carbonates - Hydroxyl or Halogen

(16b.2)where (A)m (B)n (XO3)p Zq · x(H2O), with (m+n):p=3:2

(16b.2.1)Dana Group

16b.2.1.1 Dundasite PbAl2(CO3)2(OH)4·(H2O) Pbmm 2/m 2/m 2/m

16b.2.1.2 Dresserite BaAl2(CO3)2(OH)4·(H2O) Pbmm 2/m 2/m 2/m

16b.2.1.3 Strontiodresserite (Sr,Ca)Al2(CO3)2(OH)4·(H2O) Pbmm 2/m 2/m 2/m

16b.2.1.4 Petterdite! PbCr2(CO3)2(OH)4·H2O Pbnm 2/m 2/m 2/m

16b.2.1.5 Kochsandorite ! CaAl2(CO3)2(OH)4·H2O P nma 2/m 2/m 2/m

Strunz Class:

V/X.00-00 V - Nitrates, Carbonates and Borates

V/X - Unclassified Strunz Nitrates, Carbonates and Borates

V/X.00 - Dresserite group

Other Kochsandorite Information

See Also:

Links to other databases for Kochsandorite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

Search for Kochsandorite using:

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

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

Translate Kochsandorite Mineral Data :

Ask about Kochsandorite 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 Kochsandorite Specimen Label here :

Kochsandorite

CaAl2(CO3)2(OH)4·H2O
Dana No: 16b.2.1.5 Strunz No: V/X.00-00
Locality:

Notes: