Tuzlaite Mineral Data +

Greenside Minerals

General Tuzlaite Information
Chemical Formula:	NaCaB508(0H)2·3(H2O)
Composition:	Molecular Weight = 333.17 gm
	Sodium     6.90 %  Na    9.30 % Na2O
	Calcium   12.03 %  Ca   16.83 % CaO
	Boron     16.22 %  B    52.24 % B2O3
	Hydrogen   2.42 %  H    21.63 % H2O
	Oxygen    62.43 %  O
	______        ______
	100.00 %      100.00 % = TOTAL OXIDE
Empirical Formula:	NaCaB5O8(OH)2·3(H2O)
IMA Status:	Approved IMA 1994
Locality:	Link to MinDat.org Location Data.
Synonym:	ICSD 75289
	IMA1993-022
	PDF 47-1759
Tuzlaite Image
Images:	Tuzlaite Comments: Prismatic colorless crystals of tuzlaite. Location: Niedersachswerfen, Nordhausen, Harz Mts, Thuringia, Germany. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Tuzlaite Crystallography
Axial Ratios:	a:b:c =0.4899:1:0.8631
Cell Dimensions:	a = 6.506, b = 13.28, c = 11.462, Z = 4; beta = 92.97° V = 988.98 Den(Calc)= 2.24
Crystal System:	Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
X Ray Diffraction:	By Intensity(I/Io): 8.638(1), 6.617(0.29), 2.868(0.24),
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	Bermanec V , Armbruster T , Tibljas D , Sturman D , Kniewald G , American Mineralogist , 79 (1994) p.562-569, Tuzlaite, NaCa[B5O8(OH)2].3H2O, a new mineral with a pentaborate sheet, structure from the Tuzla salt mine, Bosnia and Hercegovina
Physical Properties of Tuzlaite
Cleavage:	[001] Perfect
Color:	Colorless, White.
Density:	2.21
Diaphaniety:	Transparent
Hardness:	2-3 - Gypsum-Calcite
Luster:	Silky - Pearly
Streak:	white
Optical Properties of Tuzlaite
Gladstone-Dale:	CI meas= -0.034 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.02 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2436,KPDmeas= 0.2469,KC= 0.2389
Optical Data:	Biaxial (+), a=1.532, b=1.544, g=1.561, bire=0.0290, 2V(Calc)=82, 2V(Meas)=80.9-82.
Calculated Properties of Tuzlaite
Electron Density:	relectron=2.26 gm/cc note: rTuzlaite =2.24 gm/cc.
Fermion Index	Fermion Index = 0.03274 Boson Index = 0.96726
Photoelectric:	PETuzlaite = 1.82 barns/electron U=PETuzlaite x relectron= 4.10 barns/cc.
Radioactivity:	GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tuzlaite is Not Radioactive
Tuzlaite Classification
Dana Class:	26.5.12.2 (26)Hydrated Borates Containing Hydroxyl or Halogen
	(26.5)Dana Type
	(26.5.12)Dana Group
	26.5.12.1 Probertite NaCaB5O7(OH)4·3(H2O) P 21/a 2/m
	26.5.12.2 Tuzlaite NaCaB508(0H)2·3(H2O) P 21/c 2/m
Strunz Class:	V/K.03-30 V - Nitrates, Carbonates and Borates
	V/K - Layered borates with complex groups [Bx(O,OH)y]
	V/K.03 - Nasinite ? - Tuzlaite series
	V/K.03-10 Nasinite Na2B5O8(OH)·2(H2O) P na21 mm2
	V/K.03-20 Biringuccite Na2B5O8(OH)·(H2O) P 21/c 2/m
	V/K.03-30 Tuzlaite NaCaB508(0H)2·3(H2O) P 21/c 2/m
Other Tuzlaite Information
References:	PHYS. PROP.(Am.Min.,Vol.79,p562-569,1994) OPTIC PROP.(Am.Min.,Vol.79,p562-569,1994)
See Also:	Links to other databases for Tuzlaite : 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 - WWW-MINCRYST 13 -École des Mines de Paris Search for Tuzlaite using:   Web webmineral.com [ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO] Visit our Advertisers for Tuzlaite : AA Mineral Specimens B & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Tuzlaite Mineral Data : Ask about Tuzlaite 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 Tuzlaite Specimen Label here : Tuzlaite NaCaB508(0H)2·3(H2O) Dana No: 26.5.12.2 Strunz No: V/K.03-30 Locality:   Notes: