Breunnerite, also known as brown spar () is a variety of magnesite, with a magnesium/iron ratio of 90/10 to 70/30.
Breunnerite, also known as brown spar () is a variety of magnesite, with a magnesium/iron ratio of 90/10 to 70/30.
== Name and history == It has been described by Wilhelm Karl Ritter von Haidinger in samples of Pfitsch pass, Zamsergrund and , two cities of the Ziller Valley, Tyrol, Austria.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).