Mercallite Mineral Data

Mercallite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Masons Minerals
[Thumbnails] [Miniatures] [Cabinets] [About Us] [FAQ]
Welcome To Mason's Minerals
Your Source for Beautiful Minerals and Crystals
We offer a no-questioned-asked Satisfaction Guarantee


General Mercallite Information

Help on Chemical Formula: Chemical Formula: KHSO4
Help on Composition: Composition: Molecular Weight = 136.17 gm
   Potassium  28.71 %  K    34.59 % K2O
   Hydrogen    0.74 %  H     6.62 % H2O
   Sulfur     23.55 %  S    58.80 % SO3
   Oxygen     47.00 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KH(SO4)
Help on Environment: Environment: Found as stalactites composed of minute tabular crystals in fumaroles.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1935
Help on Locality: Locality: Crater of the volcano, Vesuvius, Italy Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Giuseppe Mercalli (1850-1914), Italian Geologist, director of the Vesuvius Observatory.
Help on Name Pronunciation: Name Pronunciation: Mercallite + Pronunciation Say MERCALLITE
Help on Synonym: Synonym: ICSD 346
  PDF 11-649
 

Mercallite Image

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

Mercallite

Comments: Pale blue to white powdery aggregate of mercallite.
Location: Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Mercallite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8583:1:2.0364
Help on Cell Dimensions: Cell Dimensions: a = 8.412, b = 9.8, c = 19.957, Z = 16; V = 1,645.21 Den(Calc)= 2.20
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P bca
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.84(1), 3.26(0.9), 3.41(0.9),3.52(0.9), 3.87(0.7), 3.03(0.7), 2.37(0.3), 2.74(0.3),
Click Here for Large Mercallite Structure Window 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


Payan F , Haser R , Acta Crystallographica, Section B , 32 (1976) p.1875-1879, On the hydrogen bonding in potassium hydrogen sulphate. Comparison with a, previous crystal structure determination, Locality: synthetic

 

Physical Properties of Mercallite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, Sky blue.
Help on Density: Density: 2.33
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Mercallite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.028 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.088 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2115,KPDmeas= 0.1997,KC= 0.1944
Ncalc = 1.43 - 1.45
Help on Optical Data: Optical Data: Biaxial (+), a=1.445, b=1.46, g=1.491, bire=0.0460, 2V(Calc)=72, 2V(Meas)=56.
 

Calculated Properties of Mercallite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.33 gm/cc
note: Specific Gravity of Mercallite =2.33 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0020272979
Boson Index = 0.9979727021
Help on Photoelectric: Photoelectric: PEMercallite = 4.28 barns/electron
U=PEMercallite x relectron= 9.97 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 413.77 (Gamma Ray American Petroleum Institute Units)
Concentration of Mercallite per GRapi unit = 0.24 (%)

Estimated Radioactivity from Mercallite - barely detectable

 

Mercallite Classification
Help on Dana Class: Dana Class: 28.01.01.01 (28)Anhydrous Acid and Sulfates
  (28.01)(Anhydrous, Acid)
  (28.01.01)Dana Group
 
28.01.01.01 Mercallite KHSO4 P bca 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 07.AD.10 07 - SULFATES (SELENATES, TELLURATES)
  07.A - Sulfates (selenates, etc.) without Additional Anions, without H2O
  07.AD -With only large cations
 
07.AD.10 Mercallite KHSO4 P bca 2/m 2/m 2/m
 

Other Mercallite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Mercallite :
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
15 - WWW-MINCRYST

Search for Mercallite using:

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

Visit our Advertisers for Mercallite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Mercallite Mineral Data :

Ask about Mercallite 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 Espaņol

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

Mercallite

KHSO4
Dana No: 28.01.01.01 Strunz No: 07.AD.10
Locality:

 

Notes: