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Orlando
Basic information Name: Orlando
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: Yes
Year fell: 2004
Country: United States
Mass:help 180 g
Classification
  history:
Meteoritical Bulletin:  MB 90  (2006)  Eucrite-mmict
Recommended:  Eucrite    [explanation]

This is 1 of 344 approved meteorites classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 3 Feb 2006
Writeuphelp
Writeup from MB 90:

Orlando                28°32′51′′N, 81°21′44′′W

Orange County, Florida, USA

Fall: 8 November 2004

Achondrite (eucrite, monomict)

History: On Monday, November 8, 2004, around 6:15 P.M., Ms. Donna Shuford was startled by the noise of something hitting the side of her house. She discovered that something had hit the top of her car and ricocheted onto the side of her house. A single ~180 g stone that had fragmented on impact was found.

Petrography and Geochemistry: (D. Mittlefehldt and M. Zolensky, NASA JSC) Major phases are low-Ca pyroxene (Wo3En35Fs62; Fe/Mn ~30) with lamellae of high-Ca pyroxene (Wo45En29Fs26), and calcic plagioclase (An71– 83Ab16–28Or~1). Minor phases include titanian chromite (TiO2 = 16–20, Al2O3 = 2–3, MgO = 0.4, MnO = 0.8; [all wt%]), ilmenite (MgO = 0.5, MnO = 0.9 [both wt%]), with silica, iron sulfide, and Fe,Ni metal. The rock is largely unbrecciated, but has shock veins with granular texture and containing some glass. Remnant ophitic/subophitic igneous texture is preserved with plagioclase laths ~1 mm by ~30 µm, and ~2 mm blocky pyroxene grains. In much of the rock, pyroxene has been recrystallized to ~20–50 µm equant grains while plagioclase retains its original shape.

Classification: Achondrite (eucrite, monomict).

Specimens: A 20 g type specimen is on deposit at SI. The finder holds the main mass.

Data from:
  MB90
  Table 4
  Line 14:
State/Prov/County:Orange, FL
Origin or pseudonym:Residential
Date:11 Aug 2004
Latitude:28°32'51"N
Longitude:81°21'44"W
Mass (g):180
Pieces:1
Class:Euc
Type spec mass (g):20
Institutions
   and collections
JSC: Mailcode KT, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 3 Sep 2013)
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
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Geography:

United States
Coordinates:
     Recommended::   (28° 32' 51"N, 81° 21' 44"W)

Statistics:
     This is 1 of 6 approved meteorites from Florida, United States
     This is 1 of 1787 approved meteorites from United States (plus 352 unapproved names) (plus 28 impact craters)
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