RARE LUDWIGITE CLUSTER 3 1/2″ 7 Oz Museum Quality Specimen Raw Rock Mineral
Ludwigite is a magnesium-iron borate mineral: Mg₂FeBO₅. It occurs in association with magnetite, forsterite, clinohumite and the borates vonsenite and szaibelyite. This Ludwigite was mined by a personal geologist friend of mine at the Spring Gulch Valley View Mine area, White Rock Canyon, Spring Mountain District, Lemhi County, Idaho.