Khand-Moria-Carn dum coincidence

[Elu Ancalime]

I read through the dwarves and mordor thread, and im sorry i missed it. I have a few questions, which may be on tangent of my own thread. "wheredid tlkien neame the houses of dwarves besides longbeards, broadbeams, and fire beards? (ironfists, stiffbeards) are those in the Peoples of ME or something? and from what the Atlas of middle earth shows, mordor was in the first age where part of the helcar were, which apparently dried up, leaving the sea of rhun only. i would guess mordor was raised from volanic and plate techtonics, due to mount dooms existance, and the black mountains. so dwarves might have flourished in that diagonal mountain range, which im sure has a different name than the epitel duath.....so since saurin didnt taint the land, and nurn wasnt as bad as gogoroth, i think geolgicallt and politically it would be possible for a dwarvish clan, even by the enemy. Erebor was near the grey mountains, and Rhun, and they onlky fought when attacked, they did not go out to conquer. same with the emyen angren. So there could be a clan, that either eluded sauron, khand, and rhun, or was eliminated by them, and only the name khand perhaps remained. Speculation.
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