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Meteoriteswhat color should meteorite powder be when you grind it down?

19th Aug 2022 19:34 UTCLeslie Keffer

i found a rock that i think may be a meteorite its heavy, magnetic and appears to have a fusion crust. when grinded down it made a black powder and was black inside with tiny shiny silver dots. i grinded down slag glasses i had and there powder was white or light grey. we also dont have magnetite in this area. it is def not hematite. was curious when grinding what color the powder should be. here are some pics of it my camera isnt great so i did the best i could.

19th Aug 2022 19:45 UTCPaul De Bondt Manager

Leslie, please read this and especially the section about meteorites:

https://www.mindat.org/article.php/4346/Guidelines+for+identity+help

Keep safe.

19th Aug 2022 19:56 UTCLeslie Keffer

thank you i am not trying to get it identified i just want to know what color the grinded powder is on a actual meteorite

19th Aug 2022 20:51 UTCDavid Carter 🌟 Expert

A meteorite is a solid piece of debris from an object that originated in outer space, such as a comet, asteroid, meteoroid, planetoid, or another planet.

Your question is a bit like asking what is the colour of ground powder of any unspecified terrestrial rock that is found on the Earth!

19th Aug 2022 20:45 UTCHerwig Pelckmans

Leslie Kennedy Keffer ✉️

what color the grinded powder is on a actual meteorite

Dear Leslie,

There are many different kinds of meteorite, and consequently their "grinded powder" will look way different too.

Non-metal meteorites are identified by making thin sections and studying the minerals that can be seen in the section.

HTH

Cheers, Herwig

19th Aug 2022 22:15 UTCAlfredo Petrov Manager

Leslie, Meteorites are basically rocks, composed of many different minerals, just like Earth rocks, so your powder color (which mineral collectors generally call the "streak") will vary depending on which component of the meteorite you are grinding. If it's an iron meteorite, then the metal inside could produce a shiny silvery metallic streak. Troilite, graphite or magnetite would give you a black streak. The surface of an iron meteorite is likely to be oxidized (unless freshly fallen) and then you'll get a rusty brown streak. The black fusion crust on a stony meteorite is composed mainly of melted silicates, which will give you a pale colored streak, perhaps even white. As you can see, it's quite variable.

19th Aug 2022 22:41 UTCLeslie Keffer

thank you!! i couldnt find anything online that explained all that!

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