Axinite is the name for a group of basic aluminum boro-silicate minerals of calcium, iron, magnesium, and manganese. Mineral Collectors value the sharp, transparent crystal forms.
Autunite is a hydrated calcium uranyl phosphate mineral with the formula of Ca(UO2)2(PO4)2 · 10-12H2O. Due to the uranium content of 48.27%, it is radioactive and used as uranium ore.
Titanite is a calcium titanium silicate mineral with the formula of CaTiSiO5. Rare earth elements such as thorium, cerium, and yttrium are sometimes present in Titanite in minor quantities.
Celestine is a strontium sulfate mineral with the formula SrSO4. Celestine is an attractive mineral that forms in well-shaped crystals with a distinctive soft blue color.
Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. The primary Apatite group includes Fluorapatite, Chlorapatite, and Hydroxylapatite.
