Changes

¹The planet of '''Simia Orichalcae''' is mainly an [[Ice World]], uninhabited except for [[Promethium]] processing plants scattered across the planet to refine veins of rare ice, deep underground, into usable promethium.¹

^aThe etymology of the name remains unknown, but is suspected to refer to a statue or effigy in a past epoch, but the importance of commemorating this certain animal remains unknown.^1a

^bIt is, however, most notably featured as the planet where [[Commissar]] [[Ciaphas Cain]] along with the [[Valhallan 597th]] were deployed to defend a promethium refinery against marauding bands of [[Orks]], ^c1b, and later encountering [[Necrons]] released from stasis by the presence of sentient life. ^d1c. It is later revealed that high-ranking Adeptus Mechanicus magus, Ernulph, deliberately built the refinery exactly above the Necron Tomb to investigate it.^1d

^eCommissar Cain attempted to destrtoy the Necron Tomb, along with a Necron warp portal with [[melta bombs]], but initially failed. ^f1eIn desperation, he filled the deep underground caverns beneath the processing plant with promethium from a reserve, with the help of Adeptus Mechanicus magus, Logash; and "got the frak out of there". ^1f

^gThe [[Imperial Guard]], realizing that they could not defeat an endless wave of foes (noting their apparent indestructibility without the help of an [[Astartes]] [[Chapter]]) in addition to Orks in the company of a Gargant; promptly chose to evacuate the mining colonies to an awaiting ship, the [[Pure of Heart]]. ^1g

^hFrom there, they detonated the promethium-filled caverns with bombs placed by sappers originally meant for the approaching Gargant. The blast was so powerful that shockwaves were felt throughout the already spaceborne Pure of Heart, and left a kilometers-wide crater that permanently scarred the pristine icy-beauty of Simia Orichalcae.^1h

**^a1a: pp. 295**^b1b: pp. 295-298**^c1c: pp. 352-354, 390-393, 411-418**^d1d: pp. 424-431**^e1e: pp. 454-455**^f1f: pp. 467-468**^g1g: pp. 468-469**^h1h: pp. 474-478