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Boerne meteorite, Kendall County, Texas, USAi
| Regional Level Types | |
|---|---|
| Boerne meteorite | Meteorite Fall Location |
| Kendall County | County |
| Texas | State |
| USA | Country |
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Latitude & Longitude (WGS84):
29° 48' North , 98° 48' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Boerne | 13,674 (2017) | 6.6km |
| Scenic Oaks | 4,957 (2011) | 15.5km |
| Fair Oaks Ranch | 7,407 (2017) | 16.3km |
| Comfort | 2,363 (2011) | 21.2km |
| Cross Mountain | 3,124 (2011) | 21.9km |
Ordinary chondrite (H6)
Find,1932; 1.1 kg
A weathered meteoritic stone was recovered. A visual inspection reveals pervasive staining, clasts [sometimes large], and bright Fe-Ni metal aggregates. Olivine composition [Fa20], orthopyroxene ['bronzite' variety] and equilibrated textures are characteristic of the the H6 (relatively low iron) ordinary chondrite geochemical group. Plagioclase is largely interstitial. While Ramdohr (1973) found primary kamacite, taenite, chromite and schreibersite in his study of opaque minerals, he also found pervasive weathering as well. Thus, chondritic magnetite is primary (preterrestrial) in a number of ordinary chondrites, but the magnetite reported here is a terrestrial weatherate. The pervasive weathering may account for the fact that Boerne has not appeared in many meteoritic studies.
H chondrites represent ~ 45% of all well classified ordinary chondrites with the H6 petrologic type accounting for approximately one quarter of the group. The main mass [~400 g] has been at U.S. National Museum (Washington) with smaller masses at the TCU/Monnig Collection and at Arizona State University [45.9 g in 2016].
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
7 valid minerals.
Meteorite/Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Chromite Formula: Fe2+Cr3+2O4 |
| ⓘ 'Fayalite-Forsterite Series' Description: Olivine composition [Fa20] in Mason, 1963. |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ 'Limonite' Description: Limonite in fractures. |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 Description: Magnetite (terrestrial weatherate) — Observed by Ramdohr (1973) |
| ⓘ Native Iron Formula: Fe |
| ⓘ Native Iron var. Kamacite Formula: (Fe,Ni) |
| ⓘ 'Orthopyroxene Subgroup' Description: Classification as a 'Olivine-bronzite' chondrite. |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ Schreibersite Formula: (Fe,Ni)3P |
| ⓘ Taenite Formula: (Fe,Ni) |
| ⓘ Troilite Formula: FeS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | Taenite | 1.AE.10 | (Fe,Ni) |
| ⓘ | Schreibersite | 1.BD.05 | (Fe,Ni)3P |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Troilite | 2.CC.10 | FeS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Orthopyroxene Subgroup' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Fayalite-Forsterite Series | |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Fayalite-Forsterite Series | |
| Al | Aluminium | |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Fayalite-Forsterite Series | |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| P | Phosphorus | |
| P | ⓘ Schreibersite | (Fe,Ni)3P |
| S | Sulfur | |
| S | ⓘ Troilite | FeS |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Native Iron | Fe |
| Fe | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Schreibersite | (Fe,Ni)3P |
| Fe | ⓘ Taenite | (Fe,Ni) |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Fayalite-Forsterite Series | |
| Ni | Nickel | |
| Ni | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Schreibersite | (Fe,Ni)3P |
| Ni | ⓘ Taenite | (Fe,Ni) |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Kerr BasinBasin
- Llano ProvinceShield
- Shawnee DomainDomain
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