Kinoite Mineral Data

General Kinoite Information

Chemical Formula:

Ca2Cu2Si3O8(OH)4

Composition:

Molecular Weight = 487.53 gm

Calcium 16.44 % Ca 23.00 % CaO

Copper 26.07 % Cu 32.63 % CuO

Silicon 17.28 % Si 36.97 % SiO₂

Hydrogen 0.83 % H 7.39 % H₂O

Oxygen 39.38 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₂Cu₂Si₃O₁₀•2(H₂O)

IMA Status:

Approved IMA 1970

Locality:

Helvetia, Santa Rita Mtns., Pima County, Arizona, USA. Link to MinDat.org Location Data.

Name Origin:

Named after Eusebio Francisco Kino (1645-1711), Jesuit explorer of the southwestern United States.

Name Pronunciation:

Kinoite

Synonym:

ICSD 15185

PDF 23-946

Kinoite Image

Images:

Kinoite Apophyllite

Comments: Crystals of dark blue kinoite and clear apophyllite.
Location: Christmas Mine, Gila County, Arizona, USA. Scale: Crystal size 2.5 mm.
© John Veevaert

Images:

Dioptase Kinoite

Comments: Fibrous crystals of blue-green dioptase to 0.75mm on clear apophyllite associated with dark blue kinoite.
Location: Christmas mine, Gila Co., Arizona, USA. Scale: Pictures size 6 mm.
© Tom Loomis / Dakota Matrix

Images:

Kinoite

Comments: Kinoite crystals as single tabular or platy blue crystals to about 0.3mm and as fan-like sprays. The crystals exhibit striations, a key to distinguishing it from stringhamite.
Location: Christmas mine, Gila Co., Arizona, USA. Scale: Picture size 3 mm.
© Tom Loomis / Dakota Matrix

Kinoite Crystallography

Axial Ratios:

a:b:c =0.5422:1:0.4386

Cell Dimensions:

a = 6.99, b = 12.89, c = 5.654, Z = 2; beta = 96.08° V = 506.57 Den(Calc)= 3.20

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2₁/m

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

By Intensity(I/I_o): 4.72(1), 3.052(0.8), 6.441(0.7),

Physical Properties of Kinoite

Cleavage:

{010} Perfect, {100} Distinct, {001} Distinct

Color:

Azure blue.

Density:

3.16

Diaphaneity:

Transparent to Translucent

Hardness:

5 - Apatite

Luster:

Vitreous (Glassy)

Streak:

bluish white

Optical Properties of Kinoite

Gladstone-Dale:

CI meas= -0.014 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.002 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2061,KPDmeas= 0.2088,KC= 0.2058
Ncalc = 1.65 - 1.66

Optical Data:

Biaxial (-), a=1.638, b=1.665, g=1.676, bire=0.0380, 2V(Calc)=64, 2V(Meas)=68.

Calculated Properties of Kinoite

Electron Density:

Bulk Density (Electron Density)=3.15 gm/cc
note: Specific Gravity of Kinoite =3.20 gm/cc.

Fermion Index:

Fermion Index = 0.008483085
Boson Index = 0.991516915

Photoelectric:

PE_Kinoite= 13.89 barns/electron
U=PE_Kinoite x rElectron Density= 43.75 barns/cc.

Radioactivity:

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

Kinoite Classification

Dana Class:

57.01.02.01 (57)Sorosilicate Insular Si3O10 and Larger Noncyclic Groups

(57.01)with [Si3O10] groups

(57.01.02)Dana Group

57.01.02.01 Kinoite Ca2Cu2Si3O8(OH)4 P 2₁/m 2/m

Strunz Class:

09.BH.10 09 - SILICATES (Germanates)

09.B - Sorosilicates

09.BH -Sorosilicates with Si3O10, Si4O11, etc

09.BH.10 Kinoite Ca2Cu2Si3O8(OH)4 P 2₁/m 2/m

Other Kinoite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Kinoite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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

Kinoite

Ca2Cu2Si3O8(OH)4
Dana No: 57.01.02.01 Strunz No: 09.BH.10
Locality:

Notes:

Dakota Matrix
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