Quartz Mineral Data (original) (raw)

General Quartz Information

Help on Chemical Formula: Chemical Formula:

SiO2

Help on Composition: Composition:

Molecular Weight = 60.08 gm

Silicon 46.74 % Si 100.00 % SiO2

Oxygen 53.26 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

(SiO2)

Help on Environment: Environment:

Sedimentary, metamorphic, and igneous rocks.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) Prehistoric

Help on Locality: Locality:

Very common mineral found world wide. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

From the German "quarz", of uncertain origin.

Help on Name Pronunciation: Name Pronunciation:

Quartz Say QUARTZ

Help on Synonym: Synonym:

Agate - banded variety of chaledony

Amethyst - purple

Avanturine - feebly translucent chalcedony

Carnelian - flesh red chalcedony

Cat's Eye - chatoyant

Chalcedony - microcrystalline quartz

Chert - cryptocrystalline quartz

Chrysoprase - apple green chalcedony

Citrine - yellow

Flint - microcrystalline quartz

Hornstone - flint

Jasper - red or brown chalcedony

Moss Agate - variety of chaledony

Plasma - green chalcedony

Prase - leek green chalcedony

Rock Crystal

Rose Quartz - rose colored

Sapphire Quartz - blue colored

Smoky Quartz - brown to black

Tiger Eye - pseudomorph of asbestos

Quartz Image

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Click Here for Larger Quartz Image Quartz Calcite Comments: Purple-colored druse of amethystine quartz and white calcite. Location: Rio Grande do Sul, Brazil.Scale: Sample size 20 cm. © Dave Barthelmy

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Click Here for Larger Quartz Image Quartz Chalcopyrite Comments: Well-formed crystals of chalcopyrite and quartz. Location: Boldut mine, 61 level (350 meters deep), Cavnic, Maramures, Rumania.Scale: 5.5 x 3.5 cm. © Fabre Minerals

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Click Here for Larger Quartz Image Quartz Ilvaite Comments: Black, prismatic ilvaite with quartz. Location: First Sovietskij mine, Dalnjegorsk, Russia.Scale: 3.5 x 4.5 cm. © Fabre Minerals

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Click Here for Larger Quartz Image Quartz Comments: Crystal druse of transparent quartz crystals. Location: Hot Springs, Arkansas, USA.Scale: Specimen size 6 cm. © Dave Barthelmy

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Click Here for Larger Quartz Image Quartz Apatite-(CaF) Comments: Purple crystal of fluorapatite on slightly smoky quartz crystals. Former Dr. E.E. David and Houston Museum collections. Location: Pech, Kunar Province, Nuristan, Afghanistan.Scale: Crystal size 3.0 x 2.1 x 1.7 cm. © Ed Rosenzweig

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Click Here for Larger Quartz Image Quartz Comments: Slightly smokey quartz overgrown with rose quartz. Note the exceptional transparency of the rose quartz. Location: Lavra da Ilha, Taquaral, Minas Gerais, Brazil.Scale: 10 cm by 5.2 cm. © Kevin Ward

Quartz Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:1.10013

Help on Cell Dimensions: Cell Dimensions:

a = 4.9133, c = 5.4053, Z = 3; V = 113.00 Den(Calc)= 2.65

Help on Crystal System: Crystal System:

Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: P 3121,P 3221

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.342(1), 4.257(0.22), 1.8179(0.14),

Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
- Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

| | Forms:( 2 1 1) ( 1 0 1) ( 6 1 1) ( 1 0 0) ( 0 1 1) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Click Here for Large Quartz Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
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H - Help Screen
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A - Atoms On/Off
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B - Bonds On/Off
Help on Above

| | Levien L , Prewitt C T , Weidner D J , American Mineralogist , 65 (1980) p.920-930, Structure and elastic properties of quartz at pressure, P = 1 atm View Additional jPOWD Structure files for Quartz [1] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [2] [20] [21] [22] [23] [24] [25] [26] [3] [4] [5] [6] [7] [8] [9] | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Quartz

Help on Cleavage: Cleavage:

{0110} Indistinct

Help on Color: Color:

Brown, Colorless, Violet, Gray, Yellow.

Help on Density: Density:

2.6 - 2.65, Average = 2.62

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Fracture: Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Help on Habit: Habit:

Crystalline - Coarse - Occurs as well-formed coarse sized crystals.

Help on Habit: Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Help on Habit: Habit:

Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.

Help on Hardness: Hardness:

7 - Quartz

Help on Luminescence: Luminescence:

Fluorescent and Triboluminescent, Short UV=yellow-orange, Long UV=yellow-orange.

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

white

Optical Properties of Quartz

Help on Dichroism (e): Dichroism (e):

none.

Help on Dichroism (w): Dichroism (w):

none.

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.005 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.207,KPDmeas= 0.209,KC= 0.208
Ncalc = 1.54 - 1.55

Help on Optical Data: Optical Data:

Uniaxial (+), w=1.543-1.545, e=1.552-1.554, bire=0.0090.

Calculated Properties of Quartz

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.65 gm/cc
note: Specific Gravity of Quartz =2.65 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Help on Photoelectric: Photoelectric:

PEQuartz = 1.80 barns/electron
U=PEQuartz x rElectron Density= 4.76 barns/cc.

Help on Radioactivity: Radioactivity:

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

Quartz Classification

Help on Dana Class: Dana Class:

75.01.03.01 (75)Tectosilicate Si Tetrahedral Frameworks

(75.01)SiO2 with [4] coordinated Si

(75.01.03)Dana Group

75.01.03.01 Quartz SiO2 P 3121,P 3221 3 2

Help on Strunz Class: Strunz Class:

04.DA.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.D - Metal:Oxygen = 1:2 and similar

04.DA -With small cations

04.DA.05 Quartz SiO2 P 3121,P 3221 3 2

Other Quartz Information

Help on References: References:

NAME( Sinkankas66) PHYS. PROP.(www.saint-hilaire.ca) OPTIC PROP.(Mason68)

Help on See Also: See Also:

Links to other databases for Quartz :
1 - Alkali-Nuts(English)
2 - Am. Min. Crystal Structure Database
3 - Amethyst Galleries' Mineral Gallery
4 - Athena
5 - CalTech Mineral Spectroscopy
6 - Earthprints Interactive Photo Gallary
7 - Franklin Minerals(Dunn)
8 - Franklin Minerals(Palache)
9 - GeoScienceWorld
10 - Glendale Community College
11 - Google Images
12 - Google Scholar
13 - Handbook of Mineralogy (MinSocAm)
14 - Handbook of Mineralogy (UofA)
15 - HyperPhysics
16 - MinDAT
17 - Mineral and Gemstone Kingdom
18 - Mineralienatlas (Deutsch)
19 - Minerals in Thin Section-University of North Carolina
20 - Minerals in Thin Section-University of North Carolina
21 - Minerals in Thin Sections-Humboldt State
22 - NSDL Reciprocal Net (JAVA)
23 - Online Mineral Museum
24 - Philatelic Mineralogy
25 - QUT Mineral Atlas
26 - Ruff.Info
27 - Scandinavian mineral gallery
28 - Tradeshop.com - The Rainbow of Gems
29 - UCLA - Petrography Thin-Sections
30 - University of Texas at Austin
31 - WWW-MINCRYST
32 - YupRocks
33 - theimage
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

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Ask about Quartz 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 Espa�ol

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

Quartz

SiO2
Dana No: 75.01.03.01 Strunz No: 04.DA.05
Locality:

Notes: