Tertschite Mineral Data

General Tertschite Information

Chemical Formula:

Ca4B10O19•20(H2O)

Composition:

Molecular Weight = 932.71 gm

Calcium 17.19 % Ca 24.05 % CaO

Boron 11.59 % B 37.32 % B₂O₃

Hydrogen 4.32 % H 38.63 % H₂O

Oxygen 66.90 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₄B₁₀O₁₉•20(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1953

Locality:

Kurtpinari mine, Faras, Turkey. Link to MinDat.org Location Data.

Name Origin:

Named for Herman Tertsch (1880-1962), Austrian mineralogist.

Name Pronunciation:

Tertschite + Pronunciation

Tertschite Image

Images:

Tertschite

Comments: Bright white fibrous powdery tertschite.
Location: Kurtpinari Mine, Faras, Balikesir, Turkey. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Tertschite Crystallography

Crystal System:

MonoclinicSpace Group: Unk

Physical Properties of Tertschite

Color:

Snow white.

Habit:

Fibrous - Crystals made up of fibers.

Luminescence:

Fluorescent and Photoluminescent, Short UV=blue violet.

Luster:

Silky

Streak:

white

Optical Properties of Tertschite

Optical Data:

Biaxial (?), a=1.502, g=1.517, bire=0.0150

Calculated Properties of Tertschite

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Tertschite= 2.30 barns/electron
U=PE_Tertschite x rElectron Density= . barns/cc.

Radioactivity:

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

Tertschite Classification

Dana Class:

26.07.05.01 (26)Hydrated Borates Containing Hydroxyl or Halogen

(26.07)Dana Type

(26.07.05)Dana Group

26.07.05.01 Tertschite Ca4B10O19•20(H2O) Unk Mono

Strunz Class:

06.EB.20 06 - BORATES

06.E - Pentaborates

06.EB -Ino-pentaborates

06.EB.20 Tertschite Ca4B10O19•20(H2O) Unk Mono

Other Tertschite Information

References:

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

See Also:

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

Search for Tertschite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Tertschite :

A Bijoux Google Search for Tertschite
Adam's Minerals Google Search for Tertschite
Cape Minerals Google Search for Tertschite
Dakota Matrix Minerals Google Search for Tertschite
Excalibur Mineral Corp. Google Search for Tertschite
Exceptional Minerals Google Search for Tertschite
John Betts Fine Minerals Search for Tertschite
McDougall Minerals Google Search for Tertschite
Mineral News Website Link
Rock and Mineral Shows Google Search for Tertschite
Weinrich Minerals, Inc. Google Search for Tertschite

Ask about Tertschite 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 Tertschite Specimen Label here :

Tertschite

Ca4B10O19•20(H2O)
Dana No: 26.07.05.01 Strunz No: 06.EB.20
Locality:

Notes: