From Wikipedia, the free encyclopedia
Sanbornite
Sanbornite (white) with celsian (gray)—Incline, Maricopa County, California
General
Category Phyllosilicate
Formula
(repeating unit)
Ba(Si2O5)
IMA symbolSabn [1]
Strunz classification9.EF.10
Crystal system Orthorhombic
Crystal classDipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space groupPmcn
Unit cella = 4.62  Å, b = 7.68 Å
c = 13.52 Å; Z = 4
Identification
Formula mass273.50 g/mol
ColorColorless, White
Crystal habitPlaty modulated layers
CleavagePerfect
Mohs scale hardness5
LusterVitreous
StreakWhite
DiaphaneityTransparent to translucent
Specific gravity3.74
Optical propertiesBiaxial (−)
Refractive indexnα = 1.597, nβ = 1.616, nγ = 1.624
Birefringenceδ = 0.0270
DispersionWeak
References [2] [3]

Sanbornite is a rare barium phyllosilicate mineral with formula Ba Si2 O5. Sanbornite is a colorless to white to pale green, platey orthorhombic mineral with Mohs hardness of 5 and a specific gravity of 3.74.

It was first described from Incline, Mariposa County, California in 1932 [4] and named for mineralogist Frank B. Sanborn (1862–1936).

See also

Footnotes

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode: 2021MinM...85..291W. doi: 10.1180/mgm.2021.43. S2CID  235729616.
  2. ^ Sanbornite: Sanbornite mineral information and data
  3. ^ Sanbornite Mineral Data
  4. ^ Rogers, A.F. (1932) Sanbornite, a new barium silicate mineral from Mariposa County, California. Amer. Mineral., 17, 161–172

References


From Wikipedia, the free encyclopedia
Sanbornite
Sanbornite (white) with celsian (gray)—Incline, Maricopa County, California
General
Category Phyllosilicate
Formula
(repeating unit)
Ba(Si2O5)
IMA symbolSabn [1]
Strunz classification9.EF.10
Crystal system Orthorhombic
Crystal classDipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space groupPmcn
Unit cella = 4.62  Å, b = 7.68 Å
c = 13.52 Å; Z = 4
Identification
Formula mass273.50 g/mol
ColorColorless, White
Crystal habitPlaty modulated layers
CleavagePerfect
Mohs scale hardness5
LusterVitreous
StreakWhite
DiaphaneityTransparent to translucent
Specific gravity3.74
Optical propertiesBiaxial (−)
Refractive indexnα = 1.597, nβ = 1.616, nγ = 1.624
Birefringenceδ = 0.0270
DispersionWeak
References [2] [3]

Sanbornite is a rare barium phyllosilicate mineral with formula Ba Si2 O5. Sanbornite is a colorless to white to pale green, platey orthorhombic mineral with Mohs hardness of 5 and a specific gravity of 3.74.

It was first described from Incline, Mariposa County, California in 1932 [4] and named for mineralogist Frank B. Sanborn (1862–1936).

See also

Footnotes

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode: 2021MinM...85..291W. doi: 10.1180/mgm.2021.43. S2CID  235729616.
  2. ^ Sanbornite: Sanbornite mineral information and data
  3. ^ Sanbornite Mineral Data
  4. ^ Rogers, A.F. (1932) Sanbornite, a new barium silicate mineral from Mariposa County, California. Amer. Mineral., 17, 161–172

References



Videos

Youtube | Vimeo | Bing

Websites

Google | Yahoo | Bing

Encyclopedia

Google | Yahoo | Bing

Facebook