Amarillite Mineral Data

[Current Minerals] [Order Status] [Policies] [e-Bay Items]
B & L Minerals, Fine Mineral specimens for sale for collectors of all levels

General Amarillite Information

Chemical Formula:

NaFe+++(SO4)2•6(H2O)

Composition:

Molecular Weight = 379.06 gm

Sodium 6.07 % Na 8.18 % Na₂O

Iron 14.73 % Fe 21.06 % Fe₂O₃

Hydrogen 3.19 % H 28.52 % H₂O

Sulfur 16.92 % S 42.24 % SO₃

Oxygen 59.09 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaFe³⁺(SO₄)₂•6(H₂O)

Environment:

Oxidation zones of sulfide deposits.

IMA Status:

Valid Species (Pre-IMA) 1933

Locality:

Tierra Amarilla, southeast of Copiapo, Atacama, Chile Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Amarillite + Pronunciation

Synonym:

ICSD 69132

PDF 80-1306

Amarillite Image

Images:

Amarillite

Comments: Yellowish white, powdery crystals of amarillite crystals.
Location: Grotta de Faraglione, Porte de Levante, Island de Vulcano, Italy. Scale: Specimen Size 15 x10 x 7 mm.
© Sergey Vasiliev / Systematic Mineralogy

Amarillite Crystallography

Axial Ratios:

a:b:c =0.7765:1:1.1504

Cell Dimensions:

a = 8.419, b = 10.8409, c = 12.4717, Z = 4; beta = 95.495° V = 1,133.06 Den(Calc)= 2.22

Crystal System:

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

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 3 3 1) ( 1 1 2) ( 1 0 1) ( 1 1 1) ( 1 1 2) ( 1 1 0) ( 1 1 3) ( 1 1 1) ( 1 0 0) ( 0 0 1)

Warning: this large pop-up is very compute intensive and may not work well with some computers.

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

Li J J , Zhou J L , Dong W , Chinese Science Bulletin , 35 (1990) p.2073-2075, The structure of amarillite, Locality: Qinghai Province, China

Physical Properties of Amarillite

Cleavage:

{110} Good

Color:

Greenish yellow, Light yellow.

Density:

2.19

Diaphaneity:

Transparent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Hardness:

2.5-3 - Finger Nail-Calcite

Luster:

Vitreous - Adamantine

Streak:

white

Optical Properties of Amarillite

Gladstone-Dale:

CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.252,KPDmeas= 0.2554,KC= 0.2536
Ncalc = 1.56

Optical Data:

Biaxial (+), a=1.532, b=1.555, g=1.591, bire=0.0590

Calculated Properties of Amarillite

Electron Density:

Bulk Density (Electron Density)=2.26 gm/cc
note: Specific Gravity of Amarillite =2.22 gm/cc.

Fermion Index:

Fermion Index = 0.0046807815
Boson Index = 0.9953192185

Photoelectric:

PE_Amarillite= 5.42 barns/electron
U=PE_Amarillite x rElectron Density= 12.24 barns/cc.

Radioactivity:

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

Amarillite Classification

Dana Class:

29.05.03.02 (29)Hydrated Acid and Sulfates

(29.05)where A B (XO4)2 · x(H2O)

(29.05.03)Dana Group

29.05.03.01 Tamarugite NaAl(SO4)2•6(H2O) P 2₁/a 2/m

29.05.03.02 Amarillite NaFe(SO4)2•6(H2O) C 2/c 2/m

Strunz Class:

07.CC.75 07 - SULFATES (SELENATES, TELLURATES)

07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O

07.CC -With medium-sized and large cations

07.CC.75 Amarillite NaFe(SO4)2•6(H2O) C 2/c 2/m

Other Amarillite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

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

Search for Amarillite using:

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

Visit our Advertisers for Amarillite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Diamond Dan Publications

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Amarillite Mineral Data :

Ask about Amarillite 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 Amarillite Specimen Label here :

Amarillite

NaFe+++(SO4)2•6(H2O)
Dana No: 29.05.03.02 Strunz No: 07.CC.75
Locality:

Notes: