Hydrozincite Mineral Data

Hydrozincite Mineral Data +

General Hydrozincite Information

Chemical Formula:

Zn5(CO3)2(OH)6

Composition:

Molecular Weight = 549.01 gm

Zinc 59.55 % Zn 74.12 % ZnO

Hydrogen 1.10 % H 9.84 % H₂O

Carbon 4.38 % C 16.03 % CO₂

Oxygen 34.97 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Zn₅(CO₃)₂(OH)₆

Environment:

Secondary mineral in the oxidized portions of zinc deposits.

IMA Status:

Valid Species (Pre-IMA) 1853

Locality:

Bleiberg, in Carinthia, Austria. Link to MinDat.org Location Data.

Name Origin:

Named after its chemical composition.

Synonym:

Marionite

Zinc Bloom

Hydrozincite Image

Images:

Hydrozincite

Comments: Well crystallized, colorless hydrozincite crystals encrusting a limonitic gossan matrix. Fluoresces bright blue-white under UV illumination.
Location: Ojuela mine, Mapim?, Mun. de Mapim?, Durango, Mexico. Scale: 3x3x2 cm.
© John Betts - Fine Minerals

Hydrozincite Crystallography

Axial Ratios:

a:b:c =2.1327:1:0.8493

Cell Dimensions:

a = 13.479, b = 6.32, c = 5.368, Z = 2; beta = 95.6° V = 455.10 Den(Calc)= 4.01

Crystal System:

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

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

By Intensity(I/I_o): 6.66(1), 2.72(0.7), 3.14(0.5),

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

Ghose S , Acta Crystallographica , 17 (1964) p.1051-1057, The crystal structure of hydrozincite, Zn5(OH)6(CO3)2, Locality: Goodsprings, Nevada, USA

Physical Properties of Hydrozincite

Cleavage:

[100] Perfect

Color:

White, Yellowish white, Grayish white, Pinkish white, Bluish white.

Density:

3.2 - 3.8, Average = 3.5

Diaphaniety:

Transparent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).

Habit:

Massive - Fibrous - Distinctly fibrous fine-grained forms.

Habit:

Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).

Hardness:

2-2.5 - Gypsum-Finger Nail

Luminescence:

None.

Luster:

Pearly

Magnetism:

Nonmagnetic

Streak:

white

Optical Properties of Hydrozincite

Gladstone-Dale:

CI meas= -0.044 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.089 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1681,KPDmeas= 0.1926,KC= 0.1844

Optical Data:

Biaxial (-), a=1.63, b=1.642, g=1.75, bire=0.1200, 2V(Calc)=40, 2V(Meas)=40. Dispersion relatively strong.

Calculated Properties of Hydrozincite

Electron Density:

r_electron=3.37 gm/cc
note: r_Hydrozincite=3.50 gm/cc.

Fermion Index

Fermion Index = 0.02506
Boson Index = 0.97494

Photoelectric:

PE_Hydrozincite= 29.69 barns/electron
U=PE_Hydrozincite x r_electron= 99.92 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Hydrozincite is Not Radioactive

Hydrozincite Classification

Dana Class:

16a.4.1.1 (16a)Carbonates - Hydroxyl or Halogen

(16a.4)where (A B)5 (XO3)2 Zq

(16a.4.1)Dana Group

16a.4.1.1 Hydrozincite Zn5(CO3)2(OH)6 C 2/m 2/m

Strunz Class:

V/C.01-100 V - Nitrates, Carbonates and Borates

V/C - Waterfree carbonates with unfamiliar anions

V/C.01 - Azurite - Rosasite group and related compounds

V/C.01-10 Azurite Cu3(CO3)2(OH)2 P 2₁/a 2/m

V/C.01-20 Malachite Cu2(CO3)(OH)2 P 2₁/a 2/m

V/C.01-25 Georgeite Cu5(CO3)3(OH)4·6(H2O) None

V/C.01-30 Pokrovskite Mg2(CO3)(OH)2·0.5(H2O) P 2₁/a 2/m

V/C.01-40 Mcguinnessite (Mg,Cu)2(CO3)(OH)2 P 2/a or P 2₁/a 2/m

V/C.01-50 Kolwezite (Cu,Co)2(CO3)(OH)2 P1 or P1 Tri

V/C.01-60 Glaukosphaerite (Cu,Ni)2(CO3)(OH)2 P 2₁/a 2/m

V/C.01-70 Nullaginite Ni2(CO3)(OH)2 P 2₁/m,P 2₁ Mono

V/C.01-80 Rosasite (Cu,Zn)2(CO3)(OH)2 P 2₁/a 2/m

V/C.01-90 Zincrosasite (Zn,Cu)2(CO3)(OH)2 P 2₁/a 2/m

V/C.01-100 Hydrozincite Zn5(CO3)2(OH)6 C 2/m 2/m

V/C.01-105 Brianyoungite Zn3(CO3,SO4)(OH)4 C 2/m 2/m

V/C.01-110 Aurichalcite (Zn,Cu)5(CO3)2(OH)6 P 2₁/m 2/m

V/C.01-120 Loseyite (Mn,Zn)7(CO3)2(OH)10 A2/a 2/m

V/C.01-130 Sclarite (Zn,Mg,Mn)4Zn3(CO3)2(OH)10 A2/a 2/m

Other Hydrozincite Information

References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)

Search for Hydrozincite using:

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

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

Translate Hydrozincite Mineral Data :

Ask about Hydrozincite 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 Hydrozincite Specimen Label here :

Hydrozincite

Zn5(CO3)2(OH)6
Dana No: 16a.4.1.1 Strunz No: V/C.01-100
Locality:

Notes: