Lechatelierite Mineral Data (original) (raw)

General Lechatelierite 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:

Naturally occurring fused quartz as inclusions in igneous rock, lightning strikes in sandy soils, and meteor impacts.

Help on IMA Status: IMA Status:

Not Submitted IMA - Published 1915

Help on Locality: Locality:

Meteor Crater, Coconino County, Arizona, USA and other World wide occurrences. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Henry Louis Le Chatelier (1850-1936), French-Italian chemist.

Help on Synonym: Synonym:

Fulgurites

Lechatelierite Image

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

Click Here for Larger Lechatelierite Image Lechatelierite Trinitite Comments: Fused silica sand (trinitite) generated by the first nuclear (fission) bomb. Although man-made and not a valid mineral, the specimen has historic value. Location: Trinity Flats, White Sands, New Mexico. It came into existance at 5:29 a.m., July 16, 1945.Scale: Specimen size 4.1 cm. © Paul M. Schumacher

Lechatelierite Crystallography

Help on Crystal System: Crystal System:

Amorphous- No Crystals

Physical Properties of Lechatelierite

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Colorless, White.

Help on Density: Density:

2.5 - 2.65, Average = 2.57

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Fracture: Fracture:

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

Help on Habit: Habit:

Porcelainous - Fine-grained, translucent massive material like broken china

Help on Hardness: Hardness:

6.5 - Pyrite

Help on Luminescence: Luminescence:

Non-fluorescent.

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

white

Optical Properties of Lechatelierite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.066 (Fair) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.1942,KC= 0.208
Ncalc = 1.52 - 1.55

Help on Optical Data: Optical Data:

Isotropic, n=1.5.

Calculated Properties of Lechatelierite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.57 gm/cc
note: Specific Gravity of Lechatelierite =2.58 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Help on Photoelectric: Photoelectric:

PELechatelierite = 1.80 barns/electron
U=PELechatelierite x rElectron Density= 4.62 barns/cc.

Help on Radioactivity: Radioactivity:

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

Lechatelierite Classification

Help on Dana Class: Dana Class:

75.00.00.00 (75)Tektosilicate Minerals

(75.00)Without Dana Classification Numbers

(75.00.00)Silica Group

75.00.00.00 Alflarsenite NaCa2Be3Si4O13(OH)•2H2O P 21 2

75.00.00.00 Florkeite (K3Ca2Na)[Al8Si8O32]•12H2O P1 1

75.00.00.00 Lechatelierite* SiO2 None

Help on Strunz Class: Strunz Class:

04.DA.30 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.30 Lechatelierite* SiO2 None

Other Lechatelierite Information

Help on References: References:

NAME( Bull. Soc. Fran, de Min., vol. 38, pp. 182-186 (1915)) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also:

Links to other databases for Lechatelierite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Ask about Lechatelierite here :
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Print or Cut-and-Paste your Lechatelierite Specimen Label here :

Lechatelierite

SiO2
Dana No: 75.00.00.00 Strunz No: 04.DA.30
Locality:

Notes: