Northupite Mineral Data

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


TIMA - Mineral Analyzer

[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts]
See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM]
Mineral News was founded some twenty years ago and has developed a following of
avid mineral collectors seeking timely information about new finds and other items
of interest to the collector community. Articles are solicited from collector and scientific authors.

Excalibur Minerals

General Northupite Information

Help on Chemical Formula: Chemical Formula: Na3Mg(CO3)2Cl
Help on Composition: Composition: Molecular Weight = 248.75 gm
   Sodium     27.73 %  Na   37.37 % Na2O
   Magnesium   9.77 %  Mg   16.20 % MgO
   Carbon      9.66 %  C    35.39 % CO2
   Chlorine   14.25 %  Cl   14.25 % Cl
                -   %   Cl   -3.22 % -O=Cl2   
   Oxygen     38.59 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na3Mg(CO3)2Cl
Help on Environment: Environment: Continental evaporite deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1895
Help on Locality: Locality: Searles Lake, San Bernardino Co., California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after C. H. Northup (b.1861), grocer, of San Jose, California, who found the first specimen.
Help on Name Pronunciation: Name Pronunciation: Northupite + Pronunciation Say NORTHUPITE
Help on Synonym: Synonym: ICSD 4237
  PDF 19-1213
 

Northupite Image

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

Northupite

Comments: Single octahedron of Northupite.
Location: Searles Lake, San Bernardino County, California, USA. Scale: Grain size 8 mm.
© Dave Barthelmy

Northupite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 14.01, Z = 16; V = 2,749.88 Den(Calc)= 2.40
Help on Crystal System: Crystal System: Isometric - DiploidalH-M Symbol (2/m 3) Space Group: F d3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.48(1), 2.69(1), 8(0.8),
Click Here for Large Northupite 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


Dal Negro A , Giuseppetti G , Tadini C , Tschermaks Mineralogische und Petrographische Mitteilungen , 22 (1975) p.158-163, Refinement of the crystal structure of northupite: Na3Mg(CO3)2Cl, Locality: Searles Lake, California, USA

 

Physical Properties of Northupite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brownish, Colorless, Gray, Gray brown, Yellow.
Help on Density: Density: 2.38
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Crystalline - Coarse - Occurs as well-formed coarse sized crystals.
Help on Habit: Habit: Pyramidal - Crystals are shaped like pyramids.
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luminescence: Luminescence: Fluorescent and Phosphorescent, Long UV=bright cream white.
Help on Luster: Luster: Vitreous (Glassy)
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white
 

Optical Properties of Northupite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.032 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.04 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2142,KPDmeas= 0.216,KC= 0.2231
Ncalc = 1.53 - 1.54
Help on Optical Data: Optical Data: Isotropic, n=1.514.
 

Calculated Properties of Northupite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.33 gm/cc
note: Specific Gravity of Northupite =2.38 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PENorthupite = 1.70 barns/electron
U=PENorthupite x rElectron Density= 3.96 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Northupite is Not Radioactive
 

Northupite Classification
Help on Dana Class: Dana Class: 16a.03.09.01 (16a)Carbonates - Hydroxyl or Halogen
  (16a.03)where (A B)2 (XO3) Zq
  (16a.03.09)Dana Group
 
16a.03.09.01 Northupite Na3Mg(CO3)2Cl F d3 2/m 3
Help on Strunz Class: Strunz Class: 05.BF.05 05 - CARBONATES (NITRATES)
  05.B - Carbonates with additional anions, without H2O
  05.BF -With (Cl), SO4, PO4, TeO3
 
05.BF.05 Ferrotychite Na6Fe2(SO4)(CO3)4 F d3 2/m 3
 
05.BF.05 Manganotychite Na6(Mn,Fe,Mg)2(SO4)(CO3)4 F d3 2/m 3
 
05.BF.05 Northupite Na3Mg(CO3)2Cl F d3 2/m 3
 
05.BF.05 Tychite Na6Mg2(CO3)4(SO4) F d3 2/m 3
 

Other Northupite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Collectors Book of Fluorescent Minerals) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Northupite :
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
15 - WWW-MINCRYST

Search for Northupite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Northupite :

B and L Fine Minerals
Dakota Matrix Minerals
Dan & Diana Weinrich Mineral Auctions
Excalibur Mineral Corp.
Exceptional Minerals
John Betts Fine Minerals
Mineral News
Mineral of the Month Club
NY/NJ Gem & Mineral Show
TIMA Mineral Analyzer
Weinrich Minerals, Inc.
Wright's Rock Shop

Ask about Northupite 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 Northupite Specimen Label here :

Northupite

Na3Mg(CO3)2Cl
Dana No: 16a.03.09.01 Strunz No: 05.BF.05
Locality:

 

Notes: