Locality type:

Meteorite Fall Location

Classification

Species:

'Plagioclase' (not an IMA approved species)

Formula:

(Na,Ca)[(Si,Al)AlSi₂]O₈

Comments:

Plagioclase, rich in inclusions, is very fine grained and turbid.

Confirmation

Validity:

Believed Valid

Data

Mineral Data:

Click here to view Plagioclase data

Locality Data:

Click here to view Geidam meteorite, Geidam, Yobe, Nigeria

Data Identifiers

Mindat Occurrence Record ID:

956165

Long-form Identifier:

1:3:956165:6

GUID (UUID V4):

1f73942f-54ce-4356-8bb7-4bc80ea934ae

References

Mason, B. & Wiik, H.B. (1965) The Composition of the Forest City, Tennasilm, Weston, and Geidam Meteorites. American Museum Novitates, No. 2220, New York. 20 pages. (June 1965).

Reference Search (possible matching items)

	*(1961) Geophysical abstracts 184, January-March 1961. Bulletin* Vol. 1146 (1146a) US Geological Survey doi:10.3133/b1146a**	Report (issue)
	of this analysis the age of the Lower Archean plagioclase granites ranges from 1,890 to 2,000 million years...measurements, the Chudnovo-Berdichev and the plagioclase granites are 2,100 million years old, and the... and Rottenberg, J. A. The search for fossil meteorite craters: Current Sci. [India], (pt. 1), v. 29... 7, p. 249-262, 1960. The search for fossil meteorite craters to date has established the probable existence...features in Canada may prove to be the result of meteorite impact, and recent evidence suggests an impact

Plagioclase from Geidam meteorite, Geidam, Yobe, Nigeria

Plagioclase from
Geidam meteorite, Geidam, Yobe, Nigeria