Thanks for the comments Bob.
Yeah, about that linear feature...
I hate being the only one to "notice" things in these images.
Aren't magnetic materials metals - and hence "dark" ( like most of the stuff in the center ).
But that straight as an arrow thingie is a quite thin "white" needle surrounded with "fluffy" red dust.
I thought it was quite funny when NASA used the adjective "fluffy" to describe the soil clumps on the edge of the scoop.
Fluffy was the name of Hagrid's guard dog of the underground chamber that hid the Philosopher's Stone.
On Mars, maybe the fluffy stones hide the underground chambers of the Mars bugs.