Shiva Purana
शुद्धस्फटिकसंकाशमीशानाख्यं सदाशिवम् ॥ मूर्धाभिमानिनी मूर्तिः शिवस्य परमात्मनः ॥ २७ ॥
That Lord Sadaśiva is known as Mīśāna and is as pure as crystal. She is the proud idol of Lord Śiva the Supreme Soul.
english translation
zuddhasphaTikasaMkAzamIzAnAkhyaM sadAzivam ॥ mUrdhAbhimAninI mUrtiH zivasya paramAtmanaH ॥ 27 ॥
hk transliteration by Sanscript