Mineralogy Database

Tertschite Mineral Data

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General Tertschite Information

Help on Chemical  Formula: Chemical Formula: Ca4B10O19•20(H2O)
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: Ca4B10O19•20(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1953
Help on Locality: Locality: Kurtpinari mine, Faras, Turkey. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Herman Tertsch (1880-1962), Austrian mineralogist.
Help on Name Pronunciation: Name Pronunciation: Tertschite + Pronunciation Say TERTSCHITE

Tertschite Image

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

Tertschite Crystallography

Help on Crystal System: Crystal System: Monoclinic Space Group: Unk

Physical Properties of Tertschite

Help on Color: Color: Snow white.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Luminescence: Luminescence: Fluorescent and Photoluminescent, Short UV=blue violet.
Help on Luster: Luster: Silky
Help on Streak: Streak: white

Optical Properties of Tertschite

Help on Optical Data: Optical Data: Biaxial (?), a=1.502, g=1.517, bire=0.0150

Calculated Properties of Tertschite

Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PETertschite = 2.30 barns/electron
U=PETertschite x rElectron Density= . barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tertschite is Not Radioactive

Tertschite Classification

Help on  Dana Class: Dana Class: (26)Hydrated Borates Containing Hydroxyl or Halogen
  (26.07)Dana Type
  (26.07.05)Dana Group Tertschite Ca4B10O19•20(H2O) Unk Mono
Help on  Strunz Class: 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

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: 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

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Dana No: Strunz No: 06.EB.20





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