Re: [meteorite-list] Vaca Muerta euc- what is it?

Hi Bernd and all, Agreed, there is accessory amounts of olivine in mesosiderites but these are very low amounts so the olivine seem to be mostly absent in the formation. Most likely the amounts found were mixed in formation. This also explaines the green olivine crystal(s) found in some of

[meteorite-list] vaca muerta euc- what is it?

i have several pieces of vaca muerta eucrite. it is not like any of the other euc (soft, granite appearance, white). this is very hard , has a compressed granular textue and is homogenous- all one type of mineral. it is glass/ olivine -like and take a very hi polish. what is this mineral? why

Re: [meteorite-list] vaca muerta euc- what is it?

thanks- will save this info. - Original Message From: al mitt alm...@kconline.com To: mckinney trammell bigpineartifa...@yahoo.com; meteorite-list@meteoritecentral.com Sent: Sat, October 16, 2010 9:55:05 AM Subject: Re: [meteorite-list] vaca muerta euc- what is it? Hi Mckinney

Re: [meteorite-list] vaca muerta euc- what is it?

: [meteorite-list] vaca muerta euc- what is it? i have several pieces of vaca muerta eucrite. it is not like any of the other euc (soft, granite appearance, white). this is very hard , has a compressed granular textue and is homogenous- all one type of mineral. it is glass/ olivine -like and take

[meteorite-list] Vaca Muerta euc- what is it?

AL kindly wrote: I believe there is an absence of olivine in mesosiderites. Objection, Your Honor! Norton O.R. (2002) The Cambridge Encyclopedia of Meteorites, p. 157: Accessory amounts of olivine are also present in mesosiderites ...the mineralogy of the silicate portion...is ...orthopyroxene